Researcher Profile and Settings

URL

http://www.kwasan.kyoto-u.ac.jp/~shibata/

researchmap

https://researchmap.jp/read0049257

Research Interests

• 宇宙電磁流体力学
• Cosmical Magnetohydrodynamics

Research Areas

• Natural sciences / Astronomy

Research Experience

• Kyoto University, Graduate School of Science, Professor, 1999/04 - 2020/03
• National Astronomical Observatory of Japan, 1991 - 1999
• 愛知教育大教育学部助 教授, 1985 - 1991
• 愛知教育大教育学部 助手, 1981 - 1985

Education

• Kyoto University, 理学研究科, 宇宙物理学専攻, - 1981
• Kyoto University, 理学研究科, 宇宙物理学専攻, - 1979
• Kyoto University, Graduate School, Division of Natural Science, - 1979
• Kyoto University, Faculty of Science, - 1977
• Kyoto University, Faculty of Science, - 1977

Degree

• Doctor of Science

Association Memberships

• Japan Geoscience Union, Jun. 2009, 9999
• COSPAR
• 国際天文学連合（IAU)
• 天文学会
• COSPAR
• The International Astronomical Union
• Astronomical Society of Japan

Committee Memberships

• President, 2017/06 - 2019/06, Astronomical Society of Japan, Society
• Vice-President, 2009/01 - 2010/12, Astronomical Society of Japan, Society
• 評議員, 2002 - 2005, 天文学会, Society, 天文学会
• 庶務理事, 1997 - 2000, 天文学会, Society, 天文学会
• 支部理事, 1991 - 1992, 天文学会, Society, 天文学会

Awards

• Hale Prize
  Jun. 2020, American Astronomical Society, outstanding work on the properties and behavior of magnetized solar and astrophysical plasmas
• Chandrasekhar Prize
  Nov. 2019, Association of Asia Pacific Physical Societies' Division of Plasma Physics (AAPPS-DPP), pioneering and seminal contributions in solar and astrophysical magnetohydrodynamics (MHD)
• Chushiro Hayashi prize
  Mar. 2002, Astronomical Society of Japan, Study of the Magnetohydrodynamic Mechanism of Cosmic Jets and Flares, Japan

Published Papers

• Apache Point Observatory (APO)/SMARTS Flare Star Campaign Observations. I. Blue Wing Asymmetries in Chromospheric Lines during Mid-M-Dwarf Flares from Simultaneous Spectroscopic and Photometric Observation Data
  Yuta Notsu; Adam F. Kowalski; Hiroyuki Maehara; Kosuke Namekata; Kenji Hamaguchi; Teruaki Enoto; Isaiah I. Tristan; Suzanne L. Hawley; James R. A. Davenport; Satoshi Honda; Kai Ikuta; Shun Inoue; Keiichi Namizaki; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 961(2) 189 - 189, 25 Jan. 2024, Scientific journal
  

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• Starspot Mapping with Adaptive Parallel Tempering. II. Application to TESS Data for M-dwarf Flare Stars AU Microscopii, YZ Canis Minoris, and EV Lacertae
  Kai Ikuta; Kosuke Namekata; Yuta Notsu; Hiroyuki Maehara; Soshi Okamoto; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 948(1) 64 - 64, 01 May 2023, Scientific journal
  

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• Detection of a High-velocity Prominence Eruption Leading to a CME Associated with a Superflare on the RS CVn-type Star V1355 Orionis
  Shun Inoue; Hiroyuki Maehara; Yuta Notsu; Kosuke Namekata; Satoshi Honda; Keiichi Namizaki; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 948(1) 9 - 9, 27 Apr. 2023, Scientific journal
  

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• A Superflare on YZ Canis Minoris Observed by the Seimei Telescope and TESS: Red Asymmetry of Hα Emission Associated with White-light Emission
  Keiichi Namizaki; Kosuke Namekata; Hiroyuki Maehara; Yuta Notsu; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 945(1) 61 - 61, 01 Mar. 2023, Scientific journal
  

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• Unified Relationship between Cold Plasma Ejections and Flare Energies Ranging from Solar Microflares to Giant Stellar Flares
  Yuji Kotani; Kazunari Shibata; Takako T. T. Ishii; Daiki Yamasaki; Kenichi Otsuji; Kiyoshi Ichimoto; Ayumi Asai
  ASTROPHYSICAL JOURNAL, IOP Publishing Ltd, 943(2), Feb. 2023, Scientific journal
  

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• Space Plasma Physics: A Review
  Bruce T. Tsurutani; Gary P. Zank; Veerle J. Sterken; Kazunari Shibata; Tsugunobu Nagai; Anthony J. Mannucci; David M. Malaspina; Gurbax S. Lakhina; Shrikanth G. Kanekal; Keisuke Hosokawa; Richard B. Horne; Rajkumar Hajra; Karl-Heinz Glassmeier; C. Trevor Gaunt; Peng-Fei Chen; Syun-Ichi Akasofu
  IEEE TRANSACTIONS ON PLASMA SCIENCE, IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Nov. 2022
  

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• Sun-as-a-star Analysis of H alpha Spectra of a Solar Flare Observed by SMART/SDDI: Time Evolution of Red Asymmetry and Line Broadening
  Kosuke Namekata; Kiyoshi Ichimoto; Takako T. Ishii; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP Publishing Ltd, 933(2), Jul. 2022, Scientific journal
  

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• Probable detection of an eruptive filament from a superflare on a solar-type star
  Kosuke Namekata; Hiroyuki Maehara; Satoshi Honda; Yuta Notsu; Soshi Okamoto; Jun Takahashi; Masaki Takayama; Tomohito Ohshima; Tomoki Saito; Noriyuki Katoh; Miyako Tozuka; Katsuhiro L. Murata; Futa Ogawa; Masafumi Niwano; Ryo Adachi; Motoki Oeda; Kazuki Shiraishi; Keisuke Isogai; Daikichi Seki; Takako T. Ishii; Kiyoshi Ichimoto; Daisaku Nogami; Kazunari Shibata
  NATURE ASTRONOMY, NATURE PORTFOLIO, 6(2) 241 - +, Feb. 2022, Scientific journal
  

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• Discovery of a Long-duration Superflare on a Young Solar-type Star EK Draconis with Nearly Similar Time Evolution for H alpha and White-light Emissions
  Kosuke Namekata; Hiroyuki Maehara; Satoshi Honda; Yuta Notsu; Soshi Okamoto; Jun Takahashi; Masaki Takayama; Tomohito Ohshima; Tomoki Saito; Noriyuki Katoh; Miyako Tozuka; Katsuhiro L. Murata; Futa Ogawa; Masafumi Niwano; Ryo Adachi; Motoki Oeda; Kazuki Shiraishi; Keisuke Isogai; Daisaku Nogami; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP Publishing Ltd, 926(1), Feb. 2022, Scientific journal
  

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• Small-scale Turbulent Motion of the Plasma in a Solar Filament as the Precursor of Eruption
  Daikichi Seki; Kenichi Otsuji; Hiroaki Isobe; Giulio Del Zanna; Takako T. Ishii; Takahito Sakaue; Kiyoshi Ichimoto; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 918(1), Sep. 2021, Scientific journal
  

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• Optical and X-ray observations of stellar flares on an active M dwarf AD Leonis with Seimei Telescope, SCAT, NICER, and OISTER (vol 72, pg 68, 2020)
  Kosuke Namekata; Hiroyuki Maehara; Ryo Sasaki; Hiroki Kawai; Yuta Notsu; Adam F. Kowalski; Joel C. Allred; Wataru Iwakiri; Yoko Tsuboi; Katsuhiro L. Murata; Masafumi Niwano; Kazuki Shiraishi; Ryo Adachi; Kota Iida; Motoki Oeda; Satoshi Honda; Miyako Tozuka; Noriyuki Katoh; Hiroki Onozato; Soshi Okamoto; Keisuke Isogai; Mariko Kimura; Naoto Kojiguchi; Yasuyuki Wakamatsu; Yusuke Tampo; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 73(2) 485 - 485, Apr. 2021
  

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• Starspot Mapping with Adaptive Parallel Tempering. I. Implementation of Computational Code
  Kai Ikuta; Hiroyuki Maehara; Yuta Notsu; Kosuke Namekata; Taichi Kato; Shota Notsu; Soshi Okamoto; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 902(1) 73 - 73, 13 Oct. 2020, Scientific journal
  

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• Numerical simulation of solar photospheric jet-like phenomena caused by magnetic reconnection
  Yuji Kotani; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 72(5), Oct. 2020, Scientific journal
  

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• Optical and X-ray observations of stellar flares on an active M dwarf AD Leonis with the Seimei Telescope, SCAT, NICER, and OISTER
  Kosuke Namekata; Hiroyuki Maehara; Ryo Sasaki; Hiroki Kawai; Yuta Notsu; Adam F Kowalski; Joel C Allred; Wataru Iwakiri; Yohko Tsuboi; Katsuhiro L Murata; Masafumi Niwano; Kazuki Shiraishi; Ryo Adachi; Kota Iida; Motoki Oeda; Satoshi Honda; Miyako Tozuka; Noriyuki Katoh; Hiroki Onozato; Soshi Okamoto; Keisuke Isogai; Mariko Kimura; Naoto Kojiguchi; Yasuyuki Wakamatsu; Yusuke Tampo; Daisaku Nogami; Kazunari Shibata
  Publications of the Astronomical Society of Japan, Oxford University Press (OUP), 72(4), 01 Aug. 2020, Scientific journal
  

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• Cost estimation for alternative aviation plans against potential radiation exposure associated with solar proton events for the airline industry (vol 17, pg 852, 2020)
  Yosuke A. Yamashiki; Moe Fujita; Tatsuhiko Sato; Hiroyuki Maehara; Yuta Notsu; Kazunari Shibata
  EVOLUTIONARY AND INSTITUTIONAL ECONOMICS REVIEW, SPRINGER HEIDELBERG, 17(2) 501 - 501, Jul. 2020
  

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• Cost estimation for alternative aviation plans against potential radiation exposure associated with solar proton events for the airline industry
  Yosuke A. Yamashiki; Moe Fujita; Tatsuhiko Sato; Hiroyuki Maehara; Yuta Notsu; Kazunari Shibata
  EVOLUTIONARY AND INSTITUTIONAL ECONOMICS REVIEW, SPRINGER HEIDELBERG, 17(2) 487 - 499, Jul. 2020, Scientific journal
  

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• The Seimei telescope project and technical developments
  Mikio Kurita; Masaru Kino; Fumihide Iwamuro; Kouji Ohta; Daisaku Nogami; Hideyuki Izumiura; Michitoshi Yoshida; Kazuya Matsubayashi; Daisuke Kuroda; Yoshikazu Nakatani; Kodai Yamamoto; Hironori Tsutsui; Masatsugu Iribe; Ichiro Jikuya; Hiroshi Ohtani; Kazunari Shibata; Keisuke Takahashi; Hitoshi Tokoro; Toshinori Maihara; Tetsuya Nagata
  Publications of the Astronomical Society of Japan, 72(3), 01 Jun. 2020, Scientific journal
  

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• SMART/SDDI Filament Disappearance Catalogue
  Daikichi Seki; Kenichi Otsuji; Takako T. Ishii; Kumi Hirose; Tomoya Iju; Satoru UeNo; Denis Cabezas; Ayumi Asai; Hiroaki Isobe; Kiyoshi Ichimoto; Kazunari Shibata
  Balkan, Black sea and Caspian sea Regional Network for Space Weather Studies, 28 Mar. 2020
  

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• Temporal Evolution of Spatially Resolved Individual Star Spots on a Planet-hosting Solar-type Star: Kepler-17
  Kosuke Namekata; James R. A. Davenport; Brett M. Morris; Suzanne L. Hawley; Hiroyuki Maehara; Yuta Notsu; Shin Toriumi; Kai Ikuta; Shota Notsu; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 891(2) 103 - 103, 11 Mar. 2020, Scientific journal
  

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• IRIS Mg ii Observations and Non-LTE Modeling of Off-limb Spicules in a Solar Polar Coronal Hole
  Akiko Tei; Stanislav Gunár; Petr Heinzel; Takenori J. Okamoto; Jiří Štěpán; Sonja Jejčič; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 888(1) 42 - 42, 07 Jan. 2020, Scientific journal
  

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• Estimating the temperature and density of a spicule from 100 GHz data obtained with ALMA
  Masumi Shimojo; Tomoko Kawate; Takenori J. Okamoto; Takaaki Yokoyama; Noriyuki Narukage; Taro Sakao; Kazumasa Iwai; Gregory D. Fleishman; Kazunari Shibata
  The Astrophysical Journal Letter, IOP PUBLISHING LTD, 888(2) L28 , Jan. 2020, Scientific journal
  

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• Effect of Ionization and Recombination on the Evolution of the Harris-type Current Sheet in Partially Ionized Plasmas
  K. A. P. Singh; Takahito Sakaue; Naoki Nakamura; Akito D. Kawamura; Hiroaki Isobe; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 884(2), Oct. 2019, Scientific journal
  

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• Dynamic Processes of the Moreton Wave on 2014 March 29
  Denis P. Cabezas; Ayumi Asai; Kiyoshi Ichimoto; Takahito Sakaue; Satoru UeNo; José K. Ishitsuka; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 883(1) 32 - 32, 18 Sep. 2019, Scientific journal
  

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• Impact of Stellar Superflares on Planetary Habitability
  Yamashiki Yosuke A; Maehara Hiroyuki; Airapetian Vladimir; Notsu Yuta; Sato Tatsuhiko; Notsu Shota; Kuroki Ryusuke; Murashima Keiya; Sato Hiroaki; Namekata Kosuke; Sasaki Takanori; Scott Thomas B; Bando Hina; Nashimoto Subaru; Takagi Fuka; Ling Cassandra; Nogami Daisaku; Shibata Kazunari
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 881(2), 20 Aug. 2019, Scientific journal
  

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• Dynamic Evolution of Current Sheets, Ideal Tearing, Plasmoid Formation and Generalized Fractal Reconnection Scaling Relations
  K. A. P. Singh; Fulvia Pucci; Anna Tenerani; Kazunari Shibata; Andrew Hillier; Marco Velli
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 881(1), Aug. 2019, Scientific journal
  

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• Non-relativistic and relativistic magnetic reconnection with the effects of optically thin synchrotron cooling
  Satoshi Takeshige; Hiroyuki R. Takahashi; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 71(3), Jun. 2019, Scientific journal
  

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• Small-scale motions in solar filaments as the precursors of eruptions
  Daikichi Seki; Kenichi Otsuji; Hiroaki Isobe; Takako T. Ishii; Kiyoshi Ichimoto; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 71(3), Jun. 2019, Scientific journal
  

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• Do Kepler Superflare Stars Really Include Slowly Rotating Sun-like Stars?—Results Using APO 3.5 m Telescope Spectroscopic Observations and Gaia-DR2 Data
  Yuta Notsu; Hiroyuki Maehara; Satoshi Honda; Suzanne L. Hawley; James R. A. Davenport; Kosuke Namekata; Shota Notsu; Kai Ikuta; Daisaku Nogami; Kazunari Shibata
  The Astrophysical Journal, American Astronomical Society, 876(1) 58 - 58, 03 May 2019, Scientific journal
  

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• The extreme space weather event in September 1909
  H. Hayakawa; Y. Ebihara; E. Cliver; K. Hattori; S. Toriumi; J.J. Love; N. Umemura; K. Namekata; T. Sakaue; T. Takahashi; K. Shibata
  Monthly Notices of the Royal Astronomical Society, 484(3) 4083 - 4099, Apr. 2019, Scientific journal
  

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• First Unambiguous Imaging of Large-scale Quasi-periodic Extreme-ultraviolet Wave or Shock
  Yuandeng Shen; P. F. Chen; Ying D. Liu; Kazunari Shibata; Zehao Tang; Yu Liu
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 873(1), Mar. 2019, Scientific journal
  

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• Lifetimes and Emergence/Decay Rates of Star Spots on Solar-type Stars Estimated by Kepler Data in Comparison with Those of Sunspots
  K. Namekata; H. Maehara; Y. Notsu; S. Toriumi; H. Hayakawa; K. Ikuta; S. Notsu; S. Honda; D. Nogami; K. Shibata
  Astrophysical Journal, IOP PUBLISHING LTD, 871(2) 187 , Feb. 2019, Scientific journal
  

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• Recent progress in Asia-Pacific solar physics and astrophysics
  Chen, P.F; Shibata, K; Matsumoto, R
  Reviews of Modern Plasma Physics, 2(1) 5 , Dec. 2018, International conference proceedings
  

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• Observational study on the fine structure and dynamics of a solar jet. II. Energy release process revealed by spectral analysis
  Sakaue, Takahito; Tei, Akiko; Asai, Ayumi; Ueno, Satoru; Ichimoto, Kiyoshi; Shibata, Kazunari
  Publications of the Astronomical Society of Japan, Oxford University Press (OUP), 70(6) id.99 , Dec. 2018, Scientific journal
  

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• Blue-wing enhancement of the chromospheric Mg II h and k lines in a solar flare
  Tei, Akiko; Sakaue, Takahito; Okamoto; Takenori J; Kawate, Tomoko; Heinzel, Petr; UeNo, Satoru; Asai, Ayumi; Ichimoto, Kiyoshi; Shibata, Kazunari
  Publications of the Astronomical Society of Japan, Oxford University Press (OUP), 70(6) id.100 , Dec. 2018, Scientific journal
  

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• Space Weather Prediction from the Ground: Case of CHAIN
  Daikichi Seki; Satoru Ueno; Hiroaki Isobe; Kenichi Otsuji; Denis P. Cabezas; Kiyoshi Ichimoto; Kazunari Shibata; CHAIN team
  20 Aug. 2018, Scientific journal
  

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• Time-resolved spectroscopic observations of an M-dwarf flare star EV Lacertae during a flare
  Satoshi Honda; Yuta Notsu; Kosuke Namekata; Shota Notsu; Hiroyuki Maehara; Kai Ikuta; Daisaku Nogami; Kazunari Shibata
  Publications of the Astronomical Society of Japan, Oxford University Press (OUP), 70(4), 01 Aug. 2018, Scientific journal
  

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• Sunspot drawings by Japanese official astronomers in 1749-1750
  Hayakawa, Hisashi; Iwahashi, Kiyomi; Fujiyama, Masashi; Kawai, Toshiki; Toriumi, Shin; Hotta, Hideyuki; Iijima, Haruhisa; Imada, Shinsuke; Tamazawa, Harufumi; Shibata, Kazunari
  Publications of the Astronomical Society of Japan, Oxford University Press (OUP), 70(4) 63 , Aug. 2018, Scientific journal
  

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• The Great Space Weather Event during 1872 February Recorded in East Asia
  Hisashi Hayakawa; Yusuke Ebihara; David M. Willis; Kentaro Hattori; Alessandra S. Giunta; Matthew N. Wild; Satoshi Hayakawa; Shin Toriumi; Yasuyuki Mitsuma; Lee T. Macdonald; Kazunari Shibata; Sam M. Silverman
  The Astrophysical Journal, 862(1) 57 , 20 Jul. 2018, Scientific journal
  

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• Iwahashi Zenbei’s Sunspot Drawings in 1793 in Japan
  Hisashi Hayakawa; Kiyomi Iwahashi; Harufumi Tamazawa; Shin Toriumi; Kazunari Shibata
  Solar Physics, Springer Nature, 293(1), Jan. 2018
  

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• Statistical Studies of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars
  Kosuke Namekata; Takahito Sakaue; Kyoko Watanabe; Ayumi Asai; Hiroyuki Maehara; Yuta Notsu; Shota Notsu; Satoshi Honda; Takako T. Ishii; Kai Ikuta; Daisaku Nogami; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 851(2) id.91 , Dec. 2017, Scientific journal
  

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• Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents
  Hisashi Hayakawa; Kiyomi Iwahashi; Yusuke Ebihara; Harufumi Tamazawa; Kazunari Shibata; Delores J. Knipp; Akito D. Kawamura; Kentaro Hattori; Kumiko Mase; Ichiro Nakanishi; Hiroaki Isobe
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 850(2), Dec. 2017, Scientific journal
  

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• Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents
  Hisashi Hayakawa; Kiyomi Iwahashi; Yusuke Ebihara; Harufumi Tamazawa; Kazunari Shibata; Delores J. Knipp; Akito D. Kawamura; Kentaro Hattori; Kumiko Mase; Ichiro Nakanishi; Hiroaki Isobe
  The Astrophysical Journal, American Astronomical Society, 850(2) L31 , Nov. 2017
  

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• Quasi-periodic Oscillations in Flares and Coronal Mass Ejections Associated with Magnetic Reconnection
  Takuya Takahashi; Jiong Qiu; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 848(2), Oct. 2017, Scientific journal
  

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• Records of auroral candidates and sunspots in Rikkokushi, chronicles of ancient Japan from early 7th century to 887
  Hayakawa Hisashi; Iwahashi Kiyomi; Tamazawa Harufumi; Ebihara Yusuke; Kawamura Akito Davis; Isobe Hiroaki; Namiki Katsuko; Shibata Kazunari
  Publications of the Astronomical Society of Japan, OXFORD UNIV PRESS, 69(6), Oct. 2017, Scientific journal
  

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• Observational study on the fine structure and dynamics of a solar jet. I. Energy build-up process around a satellite spot
  Takahito Sakaue; Akiko Tei; Ayumi Asai; Satoru Ueno; Kiyoshi Ichimoto; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 69(5) id.80 , Oct. 2017, Scientific journal
  

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• A Theoretical Model of X-Ray Jets from Young Stellar Objects
  Shinsuke Takasao; Takeru K. Suzuki; Kazunari Shibata
  Astrophysical Journal, Institute of Physics Publishing, 847(1) 46 - 46, 20 Sep. 2017, Scientific journal
  

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• Starspot activity and superflares on solar-type stars
  Hiroyuki Maehara; Yuta Notsu; Shota Notsu; Kosuke Namekata; Satoshi Honda; Takako T. Ishii; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 69(3), Jun. 2017, Scientific journal
  

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• Sheath-accumulating Propagation of Interplanetary Coronal Mass Ejection
  Takuya Takahashi; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 837(2), Mar. 2017, Scientific journal
  

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• Spectroscopic observations of active solar-analog stars with high X-ray luminosity, as a proxy of superflare stars
  Yuta Notsu; Satoshi Honda; Hiroyuki Maehara; Shota Notsu; Kosuke Namekata; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 69(1), Feb. 2017, Scientific journal
  

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• Validation of a scaling law for the coronal magnetic field strength and loop length of solar and stellar flares
  Kosuke Namekata; Takahito Sakaue; Kyoko Watanabe; Ayumi Asai; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 69(1) id.7 , Feb. 2017, Scientific journal
  

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• "Dandelion" Filament Eruption and Coronal Waves Associated with a Solar Flare on 2011 February 16
  Denis P. Cabezas; Lurdes M. Martinez; Yovanny J. Buleje; Mutsumi Ishitsuka; Jose K. Ishitsuka; Satoshi Morita; Ayumi Asai; Satoru UeNo; Takako T. Ishii; Reizaburo Kitai; Shinsuke Takasao; Yusuke Yoshinaga; Kenichi Otsuji; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 836(1) id.33 , Feb. 2017, Scientific journal
  

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• Developing and conducting a science education program on human space activities
  Masaki Nakamiya; Yoshitaka Mizumura; Ayako Ono; Satoko Tsujihiro; Ayumi Asai; Hiroaki Isobe; Kazunari Shibata; Takao Doi
  Proceedings of the International Astronautical Congress, IAC, 17 11106 - 11111, 2017, International conference proceedings
  

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• SCALING RELATIONS IN CORONAL MASS EJECTIONS AND ENERGETIC PROTON EVENTS ASSOCIATED WITH SOLAR SUPERFLARES
  Takuya Takahashi; Yoshiyuki Mizuno; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 833(1), Dec. 2016, Scientific journal
  

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• East Asian observations of low-latitude aurora during the Carrington magnetic storm
  Hayakawa Hisashi; Iwahashi Kiyomi; Tamazawa Harufumi; Isobe Hiroaki; Kataoka Ryuho; Ebihara Yusuke; Miyahara Hiroko; Kawamura Akito Davis; Shibata Kazunari
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Oxford University Press (OUP), 68(6) 99 - 99, Dec. 2016, Scientific journal
  

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• Observational Evidence of Particle Acceleration Associated with Plasmoid Motions
  Takasao, Shinsuke; Asai, Ayumi; Isobe, Hiroaki; Shibata, Kazunari
  The Astrophysical Journal, IOP PUBLISHING LTD, 828(2) id.103 , Sep. 2016, Scientific journal
  

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• Above-The-loop-Top oscillation and quasi-periodic coronal wave generation in solar flares
  Shinsuke Takasao; Kazunari Shibata
  Astrophysical Journal, Institute of Physics Publishing, 823(2) 150 - 150, 01 Jun. 2016, Scientific journal
  

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• A Report on the Workshop "Superflares on Solar-type Stars and Solar Flares, and Their Impacts on Exoplanets and the Earth." held in 2016 March 1st (Tue)– March 4th (Fri)
  Shibata Kazunari; Nogami Daisaku
  Journal of Integrated Creative Studies, 京都大学未来創成学国際研究ユニット, 2016 1 - 6, 10 May 2016
  

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• Solar and stellar flares and their impact on planets
  Kazunari Shibata
  SOLAR AND STELLAR FLARES AND THEIR EFFECTS ON PLANETS, CAMBRIDGE UNIV PRESS, 11(S320) 3 - 24, 2016, International conference proceedings
  

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• Roles of Ground-based Solar Observations of Hida Observatory toward the Solar-C Era
  S. Ueno; K. Shibata; K. Ichimoto; S. Nagata; I. Dorotovic; E. Shahamatnia; R. A. Ribeiro; J. M. Fonseca
  GROUND-BASED SOLAR OBSERVATIONS IN THE SPACE INSTRUMENTATION ERA, ASTRONOMICAL SOC PACIFIC, 504 309 - 312, 2016, International conference proceedings
• NUMERICAL STUDY on the EMERGENCE of KINKED FLUX TUBE for UNDERSTANDING of POSSIBLE ORIGIN of δ-SPOT REGIONS
  Shinsuke Takasao; Yuhong Fan; Mark C. M. Cheung; Kazunari Shibata
  Astrophysical Journal, Institute of Physics Publishing, 813(2) 112 - 112, 10 Nov. 2015, Scientific journal
  

  DOI URL
• UFCORIN: A fully automated predictor of solar flares in GOES X-ray flux
  Muranushi Takayuki; Shibayama Takuya; Muranushi Yuko Hada; Isobe Hiroaki; Nemoto Shigeru; Komazaki Kenji; Shibata Kazunari
  SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS, AMER GEOPHYSICAL UNION, 13(11) 778 - 796, Nov. 2015, Scientific journal
  

  DOI URL
• High dispersion spectroscopy of solar-type superflare stars. III. Lithium abundances
  Satoshi Honda; Yuta Notsu; Hiroyuki Maehara; Shota Notsu; Takuya Shibayama; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 67(5), Oct. 2015, Scientific journal
  

  DOI URL
• Nonlinear instability and intermittent nature of magnetic reconnection in solar chromosphere
  Singh K. A. P; Hillier Andrew; Isobe Hiroaki; Shibata Kazunari
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 67(5), Oct. 2015, Scientific journal
  

  DOI URL
• A THEORETICAL MODEL of A THINNING CURRENT SHEET in the LOW-β PLASMAS
  Satoshi Takeshige; Shinsuke Takasao; Kazunari Shibata
  Astrophysical Journal, Institute of Physics Publishing, 807(2) 159 - 159, 10 Jul. 2015, Scientific journal
  

  DOI URL
• High dispersion spectroscopy of solar-type superflare stars. I. Temperature, surface gravity, metallicity, and vsin i
  Yuta Notsu; Satoshi Honda; Hiroyuki Maehara; Shota Notsu; Takuya Shibayama; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 67(3), Jun. 2015, Scientific journal
  

  DOI URL
• High dispersion spectroscopy of solar-type superflare stars. II. Stellar rotation, starspots, and chromospheric activities
  Yuta Notsu; Satoshi Honda; Hiroyuki Maehara; Shota Notsu; Takuya Shibayama; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 67(3), Jun. 2015, Scientific journal
  

  DOI URL
• MAGNETOHYDRODYNAMIC SHOCKS IN AND ABOVE POST-FLARE LOOPS: TWO-DIMENSIONAL SIMULATION AND A SIMPLIFIED MODEL
  Takasao Shinsuke; Matsumoto Takuma; Nakamura Naoki; Shibata Kazunari
  The Astrophysical Journal, American Astronomical Society, 805(2), May 2015, Scientific journal
  

  DOI URL
• Statistical properties of superflares on solar-type stars based on 1-min cadence data
  Hiroyuki Maehara; Takuya Shibayama; Yuta Notsu; Shota Notsu; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  EARTH PLANETS AND SPACE, SPRINGER HEIDELBERG, 67 1 - 10, Apr. 2015, Scientific journal
  

  DOI URL
• Prominence Activation By Coronal Fast Mode Shock
  Takahashi, Takuya; Asai, Ayumi; Shibata, Kazunari
  The Astrophysical Journal, American Astronomical Society, 801(1) id.37 , Mar. 2015, Scientific journal
  

  DOI URL
• A CHAIN OF WINKING (OSCILLATING) FILAMENTS TRIGGERED BY AN INVISIBLE EXTREME-ULTRAVIOLET WAVE
  Yuandeng Shen; Kiyoshi Ichimoto; Takako T. Ishii; Zhanjun Tian; Ruijuan Zhao; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 786(2), May 2014, Scientific journal
  

  DOI URL
• Two sun-like superflare stars rotating as slow as the Sun
  Daisaku Nogami; Yuta Notsu; Satoshi Honda; Hiroyuki Maehara; Shota Notsu; Takuya Shibayama; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 66(2), Apr. 2014, Scientific journal
  

  DOI URL
• Within the International Collaboration CHAIN: a Summary of Events Observed with Flare Monitoring Telescope (FMT) in Peru
  Ishitsuka, J; Asai, A; Morita, S; Terrazas, R; Cabezas, D; Gutierrez, V; Martinez, L; Buleje, Y; Loayza, R; Nakamura, N; Takasao, S; Yoshinaga, Y; Hillier, A; Otsuji, K; Shibata, K; Ishitsuka, M; Ueno, S; Kitai, R; Ishii, T; Ichimoto, K; Nagata, S; Narukage, N
  Sun and Geosphere, 9(2) 85 - 96, Feb. 2014, International conference proceedings
• The interplanetary causes of geomagnetic activity during the 7-17 March 2012 interval: a CAWSES II overview
  Bruce T. Tsurutani; Ezequiel Echer; Kazunari Shibata; Olga P. Verkhoglyadova; Anthony J. Mannucci; Walter D. Gonzalez; Janet U. Kozyra; Martin Paetzold
  JOURNAL OF SPACE WEATHER AND SPACE CLIMATE, EDP SCIENCES S A, 4, Jan. 2014, Scientific journal
  

  DOI URL
• SUPERFLARES ON SOLAR-TYPE STARS OBSERVED WITH KEPLER. I. STATISTICAL PROPERTIES OF SUPERFLARES
  Takuya Shibayama; Hiroyuki Maehara; Shota Notsu; Yuta Notsu; Takashi Nagao; Satoshi Honda; Takako T. Ishii; Daisaku Nogami; Kazunari Shibata
  ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, IOP PUBLISHING LTD, 209(1), Nov. 2013, Scientific journal
  

  DOI URL
• High-Dispersion Spectroscopy of the Superflare Star KIC 6934317
  Shota Notsu; Satoshi Honda; Yuta Notsu; Takashi Nagao; Takuya Shibayama; Hiroyuki Maehara; Daisaku Nogami; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 65(5), Oct. 2013, Scientific journal
  

  DOI URL
• DIFFRACTION, REFRACTION, AND REFLECTION OF AN EXTREME-ULTRAVIOLET WAVE OBSERVED DURING ITS INTERACTIONS WITH REMOTE ACTIVE REGIONS
  Yuandeng Shen; Yu Liu; Jiangtao Su; Hui Li; Ruijuan Zhao; Zhanjun Tian; Kiyoshi Ichimoto; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 773(2), Aug. 2013, Scientific journal
  

  DOI URL
• SUPERFLARES ON SOLAR-TYPE STARS OBSERVED WITH KEPLER II. PHOTOMETRIC VARIABILITY OF SUPERFLARE-GENERATING STARS: A SIGNATURE OF STELLAR ROTATION AND STARSPOTS
  Yuta Notsu; Takuya Shibayama; Hiroyuki Maehara; Shota Notsu; Takashi Nagao; Satoshi Honda; Takako T. Ishii; Daisaku Nogami; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 771(2), Jul. 2013, Scientific journal
  

  DOI URL
• Numerical Simulations of Solar Chromospheric Jets Associated with Emerging Flux
  Shinsuke Takasao; Hiroaki Isobe; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 65(3), Jun. 2013, Scientific journal
  

  DOI URL
• Can Superflares Occur on Our Sun?
  Kazunari Shibata; Hiroaki Isobe; Andrew Hillier; Arnab Rai Choudhuri; Hiroyuki Maehara; Takako T. Ishii; Takuya Shibayama; Shota Notsu; Yuta Notsu; Takashi Nagao; Satoshi Honda; Daisaku Nogami
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 65(3) 49 , Jun. 2013, Scientific journal
  

  DOI URL
• Simulations of the Dynamics of the Magnetic Rayleigh-Taylor Instability in Solar Prominences
  Hillier Andrew; Berger Thomas; Shibata Kazunari; Isobe Hiroaki
  NUMERICAL MODELING OF SPACE PLASMA FLOWS ASTRONUM-2012, ASTRONOMICAL SOC PACIFIC, 474 147 - +, 2013, International conference proceedings
• NUMERICAL SIMULATION OF THREE-DIMENSIONAL ASYMMETRIC RECONNECTION AND APPLICATION TO A PHYSICAL MECHANISM OF PENUMBRAL MICROJETS
  Naoki Nakamura; Kazunari Shibata; Hiroaki Isobe
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 761(2), Dec. 2012, Scientific journal
  

  DOI URL
• SYSTEMATIC MOTION OF FINE-SCALE JETS AND SUCCESSIVE RECONNECTION IN SOLAR CHROMOSPHERIC ANEMONE JET OBSERVED WITH THE SOLAR OPTICAL TELESCOPE/HINODE
  K. A. P. Singh; H. Isobe; K. Nishida; K. Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 760(1), Nov. 2012, Scientific journal
  

  DOI URL
• MULTIPLE PLASMA EJECTIONS AND INTERMITTENT NATURE OF MAGNETIC RECONNECTION IN SOLAR CHROMOSPHERIC ANEMONE JETS
  K. A. P. Singh; H. Isobe; N. Nishizuka; K. Nishida; K. Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 759(1), Nov. 2012, Scientific journal
  

  DOI URL
• NUMERICAL SIMULATIONS OF THE MAGNETIC RAYLEIGH-TAYLOR INSTABILITY IN THE KIPPENHAHN-SCHLUTER PROMINENCE MODEL. II. RECONNECTION-TRIGGERED DOWNFLOWS
  Andrew Hillier; Hiroaki Isobe; Kazunari Shibata; Thomas Berger
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 756(2), Sep. 2012, Scientific journal
  

  DOI URL
• Spicule Dynamics over Plage Region
  Anan, T.; Kitai, R.; Hillier, A.; Kawate, T.; Ichimoto, K.; Shibata, K.
  ASP Conference Series, ASTRONOMICAL SOC PACIFIC, 454 91 - +, Aug. 2012, International conference proceedings
• EFFECT OF INTERACTING RAREFACTION WAVES ON RELATIVISTICALLY HOT JETS
  Jin Matsumoto; Youhei Masada; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 751(2), Jun. 2012, Scientific journal
• Superflares on solar-type stars
  Hiroyuki Maehara; Takuya Shibayama; Shota Notsu; Yuta Notsu; Takashi Nagao; Satoshi Kusaba; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  NATURE, NATURE PUBLISHING GROUP, 485(7399) 478 - 481, May 2012, Scientific journal
  

  DOI URL
• NUMERICAL SIMULATIONS OF THE MAGNETIC RAYLEIGH-TAYLOR INSTABILITY IN THE KIPPENHAHN-SCHLUTER PROMINENCE MODEL. I. FORMATION OF UPFLOWS
  Andrew Hillier; Thomas Berger; Hiroaki Isobe; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 746(2), Feb. 2012, Scientific journal
  

  DOI URL
• A study on red asymmetry of Hα flare ribbons using a narrowband filtergram in the 2001 April 10 solar flare
  A. Asai; K. Ichimoto; R. Kitai; H. Kurokawa; K. Shibata
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 64(1) id.20 - 1"-"20-8", Feb. 2012, Scientific journal
• First simultaneous observation of AN Hα Moreton wave, EUV wave, and filament/prominence oscillations
  Ayumi Asai; Takako T. Ishii; Hiroaki Isobe; Reizaburo Kitai; Kiyoshi Ichimoto; Satoru Ueno; Shin'Ichi Nagata; Satoshi Morita; Keisuke Nishida; Daikou Shiota; Akihito Oi; Maki Akioka; Kazunari Shibata
  Astrophysical Journal Letters, IOP PUBLISHING LTD, 745(2) - , 01 Feb. 2012, Scientific journal
  

  DOI URL
• Observation of Reconnection Features in the Chromosphere through a Chromospheric Jet Observed by SOT/Hinode
  K. A. P. Singh; H. Isobe; K. Shibata
  HINODE-3: THE 3RD HINODE SCIENCE MEETING, ASTRONOMICAL SOC PACIFIC, 454 99 - 102, 2012, International conference proceedings
• Chromospheric Anemone Jets Observed with Hinode/SOT and Hida Ca II Spectroheliograph
  S. Morita; K. Shibata; S. Ueno; K. Ichimoto; R. Kitai; K. Otsuji
  HINODE-3: THE 3RD HINODE SCIENCE MEETING, ASTRONOMICAL SOC PACIFIC, 454 95 - 98, 2012, International conference proceedings
• Superflares on late-type stars
  Hiroyuki Maehara; Takuya Shibayama; Yuta Notsu; Shota Notsu; Tanashi Nagao; Satoshi Honda; Daisaku Nogami; Kazunari Shibata
  Proceedings of the International Astronomical Union, Cambridge University Press, 8(293) 393 - 395, 2012, International conference proceedings
  

  DOI URL
• SIMULTANEOUS OBSERVATION OF RECONNECTION INFLOW AND OUTFLOW ASSOCIATED WITH THE 2010 AUGUST 18 SOLAR FLARE
  Shinsuke Takasao; Ayumi Asai; Hiroaki Isobe; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 745(1), Jan. 2012, Scientific journal
  

  DOI URL
• Simulations of the Magnetic Rayleigh-Taylor Instability in the Kippenhahn-Schluter Prominence Model
  Hillier Andrew; Berger Thomas; Shibata Kazunari; Isobe Hiroaki
  FIFTH HINODE SCIENCE MEETING: EXPLORING THE ACTIVE SUN, 456 157 - +, 2012
• Dynamic Features of Current Sheet Associated with the 2010 August 18 Solar Flare
  Takasao Shinsuke; Asai Ayumi; Isobe Hiroaki; Shibata Kazunari
  FIFTH HINODE SCIENCE MEETING: EXPLORING THE ACTIVE SUN, ASTRONOMICAL SOC PACIFIC, 456 221 - +, 2012, International conference proceedings
• Chromospheric anemone jets and magnetic reconnection in partially ionized solar atmosphere
  K. A. P. Singh; K. Shibata; N. Nishizuka; H. Isobe
  PHYSICS OF PLASMAS, AMER INST PHYSICS, 18(11), Nov. 2011, Scientific journal
  

  DOI URL
• NUMERICAL INVESTIGATION OF A CORONAL MASS EJECTION FROM AN ANEMONE ACTIVE REGION: RECONNECTION AND DEFLECTION OF THE 2005 AUGUST 22 ERUPTION
  N. Lugaz; C. Downs; K. Shibata; I. I. Roussev; A. Asai; T. I. Gombosi
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 738(2) id.127 , Sep. 2011, Scientific journal
  

  DOI URL
• NUMERICAL SIMULATIONS OF THE MAGNETIC RAYLEIGH-TAYLOR INSTABILITY IN THE KIPPENHAHN-SCHLUTER PROMINENCE MODEL
  Andrew Hillier; Hiroaki Isobe; Kazunari Shibata; Thomas Berger
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 736(1), Jul. 2011, Scientific journal
  

  DOI URL
• Propagation of moreton waves
  Yuzong Zhang; Reizaburo Kitai; Noriyuki Narukage; Takuma Matsumoto; Satoru Ueno; Kazunari Shibata; Jingxiu Wang
  Publications of the Astronomical Society of Japan, OXFORD UNIV PRESS, 63(3) 685 - 696, 25 Jun. 2011, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Detailed analysis of fan-shaped jets in three dimensional numerical simulation
  Rong-Lin Jiang; K. Shibata; H. Isobe; Cheng Fang
  RESEARCH IN ASTRONOMY AND ASTROPHYSICS, NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES, 11(6) 701 - 724, Jun. 2011, Scientific journal
  

  DOI URL
• Propagation of Moreton Waves
  Yuzong Zhang; Reizaburo Kitai; Noriyuki Narukage; Takuma Matsumoto; Satoru UeNo; Kazunari Shibata; Jingxiu Wang
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 63(3) 685 - 696, Jun. 2011, Scientific journal
  

  DOI URL
• Statistical Study of Chromospheric Anemone Jets Observed with Hinode/SOT
  Nishizuka, N.; Nakamura, T.; Kawate, T.; Singh, K. A. P.; Shibata, K.
  The Astrophysical Journal, IOP PUBLISHING LTD, 731(1) 43 , Apr. 2011, Scientific journal
  

  DOI URL
• Dependence of the Magnetic Energy of Solar Active Regions on the Twist Intensity of the Initial Flux Tubes
  Shin Toriumi; Takehiro Miyagoshi; Takaaki Yokoyama; Hiroaki Isobe; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 63(2) 407 - 415, Apr. 2011, Scientific journal
• Magneto-thermal convection in solar prominences
  Thomas Berger; Paola Testa; Andrew Hillier; Paul Boerner; Boon Chye Low; Kazunari Shibata; Carolus Schrijver; Ted Tarbell; Alan Title
  NATURE, NATURE PUBLISHING GROUP, 472(7342) 197 - 200, Apr. 2011, Scientific journal
  

  DOI URL
• Special Relativistic Magnetohydrodynamic Simulation of Two-Component Outflow Powered by Magnetic Explosion on Compact Stars
  Jin Matsumoto; Youhei Masada; Eiji Asano; Kazunari Shibata
  The Astrophysical Journal, Vol. 733, article id. 18, 15pp, Mar. 2011, Scientific journal
  

  DOI URL
• Solar Flares: Magnetohydrodynamic Processes
  Kazunari Shibata; Tetsuya Magara
  LIVING REVIEWS IN SOLAR PHYSICS, SPRINGER INTERNATIONAL PUBLISHING AG, 8(6), 2011
  

  DOI URL
• FAN-SHAPED JETS IN THREE-DIMENSIONAL RECONNECTION SIMULATION AS A MODEL OF UBIQUITOUS SOLAR JETS
  Rong Lin Jiang; Kazunari Shibata; Hiroaki Isobe; Cheng Fang
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 726(2), Jan. 2011, Scientific journal
  

  DOI URL
• Evolution of the Kippenhahn-Schluter Prominence Model Magnetic Field under Cowling Resistivity
  Hillier Andrew; Shibata Kazunari; Isobe Hiroaki
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 62(5) 1231 - 1237, 25 Oct. 2010, Scientific journal
  

  DOI URL
• Internal Fine Structure of Ellerman Bombs
  Hashimoto, Yuki; Kitai, Reizaburo; Ichimoto, Kiyoshi; Ueno, Satoru; Nagata, Shin'ichi; Ishii, Takako T.; Hagino, Masaoki; Komori, Hiroyuki; Nishida, Keisuke; Matsumoto, Takuma; Otsuji, Kenichi; Nakamura, Tahei; Kawate, Tomoko; Watanabe, Hiroko; Shibata, Kazunari
  Publications of the Astronomical Society of Japan, OXFORD UNIV PRESS, 62(4) 879 - 891, Aug. 2010, Scientific journal
  

  DOI URL
• MAGNETOHYDRODYNAMIC MODELING FOR A FORMATION PROCESS OF CORONAL MASS EJECTIONS: INTERACTION BETWEEN AN EJECTING FLUX ROPE AND AN AMBIENT FIELD
  Daikou Shiota; Kanya Kusano; Takahiro Miyoshi; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 718(2) 1305 - 1314, Aug. 2010, Scientific journal
  

  DOI URL
• Generation of Alfven Waves by Magnetic Reconnection
  Hiromitsu Kigure; Kunio Takahashi; Kazunari Shibata; Takaaki Yokoyama; Satoshi Nozawa
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 62(4) 993 - 1004, Aug. 2010, Scientific journal
  

  DOI URL
• Energetic Relations between the Disappearing Solar Filaments and the Associated Flare Arcades
  Taro Morimoto; Hiroki Kurokawa; Kazunari Shibata; Takako T. Ishii
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 62(4) 939 - 949, Aug. 2010, Scientific journal
  

  DOI URL
• Ca II K Spectral Study of an Emerging Flux Region using the Domeless Solar Telescope in Hida Observatory
  Kenichi Otsuji; Reizaburo Kitai; Takuma Matsumoto; Kiyoshi Ichimoto; Satoru UeNo; Shin'ichi Nagata; Hiroaki Isobe; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 62(4) 893 - 900, Aug. 2010, Scientific journal
• Spicule Dynamics over a Plage Region
  Tetsu Anan; Reizaburo Kitai; Tomoko Kawate; Takuma Matsumoto; Kiyoshi Ichimoto; Kazunari Shibata; Andrew Hillier; Kenichi Otsuji; Hiroko Watanabe; Satoru UeNo; Shin'ichi Nagata; Takako T. Ishii; Hiroyuki Komori; Keisuke Nishida; Tahei Nakamura; Hiroaki Isobe; Masaoki Hagino
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 62(4) 871 - 877, Aug. 2010, Scientific journal
• Observations of Chromospheric Anemone Jets with Hinode Ca II Broadband Filtergraph and Hida Ca II Spectroheliograph
  Satoshi Morita; Kazunari Shibata; Satoru UeNo; Kiyoshi Ichimoto; Reizaburo Kitai; Ken-ichi Otsuji
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 62(4) 901 - 920, Aug. 2010, Scientific journal
• MULTIPLE PLASMOID EJECTIONS AND ASSOCIATED HARD X-RAY BURSTS IN THE 2000 NOVEMBER 24 FLARE
  N. Nishizuka; H. Takasaki; A. Asai; K. Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 711(2) 1062 - 1072, Mar. 2010, Scientific journal
  

  DOI URL
• Solar Plages: Observational Study of Their Chromospheric Heating and Spicular Mass Ejections
  Kitai, R.; Hashimoto, Y.; Anan, T.; Matsumoto, T.; Kawate, T.; Watanabe, H.; Otsuji, K.; Nakamura, T.; Nishizuka, N.; Nishida, K.; Ueno, S.; Nagata, S.; Shibata, K.
  ASP Conference Series, ASTRONOMICAL SOC PACIFIC, 415 19 - 23, Dec. 2009, International conference proceedings
• Reconnection in Solar Flares: Outstanding Questions
  Hiroaki Isobe; Kazunari Shibata
  JOURNAL OF ASTROPHYSICS AND ASTRONOMY, INDIAN ACAD SCIENCES, 30(2) 79 - 85, Jun. 2009, Scientific journal
  

  DOI URL
• PROMINENCE FORMATION ASSOCIATED WITH AN EMERGING HELICAL FLUX ROPE
  Okamoto Takenori J; Tsuneta Saku; Lites Bruce W; Kubo Masahito; Yokoyama Takaaki; Berger Thomas E; Ichimoto Kiyoshi; Katsukawa Yukio; Nagata Shin'ichi; Shibata Kazunari; Shimizu Toshifumi; Shine Richard A; Suematsu Yoshinori; Tarbell Theodore D; Title Alan M
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 697(1) 913 - 922, 20 May 2009, Scientific journal
  

  DOI URL
• THE POWER-LAW DISTRIBUTION OF FLARE KERNELS AND FRACTAL CURRENT SHEETS IN A SOLAR FLARE
  N. Nishizuka; A. Asai; H. Takasaki; H. Kurokawa; K. Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 694(1) L74 - L78, Mar. 2009, Scientific journal
  

  DOI URL
• Evolution of the anemone AR NOAA 10798 and the related geo-effective flares and CMEs
  Ayumi Asai; Kazunari Shibata; Takako T. Ishii; Mitsuo Oka; Ryuho Kataoka; Ken'ichi Fujiki; Nat Gopalswamy
  JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, AMER GEOPHYSICAL UNION, 114(3) A00A21 , Feb. 2009, Scientific journal
  

  DOI URL
• Flare-Substorm/Space Weather Topics - Preface
  Bruce T. Tsurutani; Kazunari Shibata; Syun-Ichi Akasofu; Mitsuo Oka
  EARTH PLANETS AND SPACE, TERRA SCIENTIFIC PUBL CO, 61(5), 2009
• A two-step scenario for both solar flares and magnetospheric substorms: Short duration energy storage
  Bruce T. Tsurutani; Kazunari Shibata; Syun-Ichi Akasofu; Mitsuo Oka
  EARTH PLANETS AND SPACE, SPRINGER, 61(5) 555 - 559, 2009, Scientific journal
  

  DOI URL
• Alfven Wave and Nanoflare Reconnection Heating: How to Distinguish Them Observationally?
  P. Antolin; K. Shibata; T. Kudoh; D. Shiota; D. Brooks
  SECOND HINODE SCIENCE MEETING: BEYOND DISCOVERY-TOWARD UNDERSTANDING, ASTRONOMICAL SOC PACIFIC, 415 247 - +, 2009, International conference proceedings
• Two-dimensional numerical study for relativistic outflow from strongly magnetized neutron stars
  Jin Matsumoto; Youhei Masada; Eiji Asano; Kazunari Shibata
  COSMIC MAGNETIC FIELDS: FROM PLANETS, TO STARS AND GALAXIES, CAMBRIDGE UNIV PRESS, (259) 139 - +, 2009, International conference proceedings
  

  DOI URL
• The tandem fabry-perot filter imagaing spectro-polarimeter for the Solar Magnetic Activity Research Telescope(SMART)
  Shin'ichi Nagata; Kenichi Otsuji; Takako T. Ishii; Kiyoshi Ichimoto; Satoru UeNo; Reizaburo Kitai; Goichi Kimura; Kazunari Shibata; Yoshikazu Nakatani; Satoshi Morita
  Proceedings of SPIE - The International Society for Optical Engineering, 7438, 2009, International conference proceedings
  

  DOI URL
• The CHAIN-Project and Installation of Flare Monitoring Telescopes in Developing Countries
  Ueno S.; Shibata K.; Kitai R.; Ichimoto K.; Nagata S.; Isobe H.; Kimura G.; Nakatani Y.; Kadota M.; Ishii T. T.; Morita S.; Otsuji K.
  Data Sci. J., CODATA, 8 S51 - S58, 2009
  

  DOI URL
• Numerical examination of plasmoid-induced reconnection model for solar flares: The relation between plasmoid velocity and reconnection rate
  Keisuke Nishida; Masaki Shimizu; Daikou Shiota; Hiroyuki Takasaki; Tetsuya Magara; Kazunari Shibata
  Astrophysical Journal, 690(1) 748-757 - 757, 01 Jan. 2009, Scientific journal
• PREDICTING OBSERVATIONAL SIGNATURES OF CORONAL HEATING BY ALFVEN WAVES AND NANOFLARES
  P. Antolin; K. Shibata; T. Kudoh; D. Shiota; D. Brooks
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 688(1) 669 - 682, Nov. 2008, Scientific journal
  

  DOI URL
• Spectropolarimetric observation of an emerging flux region: Triggering mechanisms of Ellerman bombs
  H. Watanabe; R. Kitai; K. Okamoto; K. Nishida; J. Kiyohara; S. Ueno; M. Hagino; T. T. Ishii; K. Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 684(1) 736 - 746, Sep. 2008, Scientific journal
  

  DOI URL
• Three successive and interacting shock waves generated by a solar flare
  Noriyuki Narukage; Takako T. Ishii; Shin'ichi Nagata; Satoru Ueno; Reizaburo Kitai; Hiroki Kurokawa; Maki Akioka; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, UNIV CHICAGO PRESS, 684(1) L45 - L49, Sep. 2008, Scientific journal
  

  DOI URL
• Giant chromospheric anemone jet observed with Hinode and comparison with magnetohydrodynamic simulations: Evidence of propagating Alfven waves and magnetic reconnection
  N. Nishizuka; M. Shimizu; T. Nakamura; K. Otsuji; T. J. Okamoto; Y. Katsukawa; K. Shibata
  ASTROPHYSICAL JOURNAL LETTERS, UNIV CHICAGO PRESS, 683(1) L83 - L86, Aug. 2008, Scientific journal
• The correlation among the rise velocity of a soft X-ray loop, the ejection velocity of a plasmoid, and the height above the loop top of the hard X-ray source in Masuda-type flares, and its interpretation based on the reconnection model of flares
  M. Shimizu; K. Nishida; H. Takasaki; D. Shiota; T. Magara; K. Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 683(2) L203 - L206, Aug. 2008, Scientific journal
• Long-Time Simulations of Astrophysical Jets: Energy Structure and Quasi-Periodic Ejection
  Ahmed Ibrahim; Kazunari Shibata
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 60(4) 871 - 887, Aug. 2008, Scientific journal
  

  DOI URL
• Cooperative observation of Ellerman bombs between the Solar Optical Telescope aboard Hinode and Hida/Domeless Solar Telescope
  Matsumoto Takuma; Kitai Reizaburo; Shibata Kazunari; Nagata Shin'ichi; Otsuji Kenichi; Nakamura Tahei; Watanabe Hiroko; Tsuneta Saku; Suematsu Yoshinori; Ichimoto Kiyoshi; Shimizu Toshifumi; Katsukawa Yukio; Tarbell Theodore D; Lites Bruce W; Shine Richard A; Title Alan M
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Astronomical Society of Japan, 60(3) 577 - 584, 25 Jun. 2008
• Coronal jet observed by Hinode as the source of a He-3-rich solar energetic particle event
  Nariaki V. Nitta; Glenn M. Mason; Mark E. Wiedenbeck; Christina M. S. Cohen; Sam Krucker; Iain G. Hannah; Masumi Shimojo; Kazunari Shibata
  ASTROPHYSICAL JOURNAL LETTERS, IOP PUBLISHING LTD, 675(2) L125 - L128, Mar. 2008, Scientific journal
• Solar-type Magnetic Reconnection Model for Magnetar Giant Flare
  Youhei Masada; Shigehiro Nagataki; Kazunari Shibata; Toshio Terasawa
  Publications of the Astronomical Society of Japan, (62) 1093 - 1102, Mar. 2008, Scientific journal
  

  DOI URL
• Height dependence of gas flows in an Ellerman bomb
  Takuma Matsumoto; Reizaburo Kitai; Kazunari Shibata; Kenichi Otsuji; Takuya Naruse; Daikou Shiota; Hiroyuki Takasaki
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 60(1) 95 - 102, Feb. 2008, Scientific journal
  

  DOI URL
• Characteristics of anemone active regions appearing in coronal holes observed with the Yohkoh soft X-ray telescope
  Ayumi Asai; Kazunari Shibata; Hirohisa Hara; Nariaki V. Nitta
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 673(2) 1188 - 1193, Feb. 2008, Scientific journal
  

  DOI URL
• Emergence of a helical flux rope under an active region prominence
  Okamoto Takenori J; Tsuneta Saku; Lites Bruce W; Kubo Masahito; Yokoyama Takaaki; Berger Thomas E; Ichimoto Kiyoshi; Katsukawa Yukio; Nagata Shin'ichi; Shibata Kazunari; Shimizu Toshifumi; Shine Richard A; Suematsu Yoshinori; Tarbell Theodore D; Title Alan M
  ASTROPHYSICAL JOURNAL LETTERS, UNIV CHICAGO PRESS, 673(2) L215 - L218, 01 Feb. 2008, Scientific journal
  

  DOI URL
• The correlation among the rise velocity of a soft X-ray loop, the ejection velocity of a plasmoid, and the height above the loop top of the hard X-ray source in Masuda-type flares, and its interpretation based on the reconnection model of flares
  M. Shimizu; K. Nishida; H. Takasaki; D. Shiota; T. Magara; K. Shibata
  Astrophysical Journal, Institute of Physics Publishing, 683(2) L203 - L206, 2008, Scientific journal
  

  DOI URL
• A quantitative MHD study of the relation among arcade shearing, flux rope formation, and eruption due to the tearing instability
  Shiota, Daikou; Kusano, Kanya; Miyoshi, Takahiro; Nishikawa, Noriaki; Shibata, Kazunari
  JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, AMER GEOPHYSICAL UNION, 113(A3), 2008, Scientific journal
  

  DOI URL
• CHAIN-project and installation of the flare monitoring telescopes in developing countries
  Satoru UeNo; Kazunari Shibata; Goichi Kimura; Yoshikazu Nakatani; Reizaburo Kitai; Shin'ichi Nagata
  BULLETIN OF THE ASTRONOMICAL SOCIETY OF INDIA, INDIAN INST ASTROPHYSICS, 35(4) 697 - 704, Dec. 2007, Scientific journal
• Coronal transverse magnetohydrodynamic waves in a solar prominence
  T. J. Okamoto; S. Tsuneta; T. E. Berger; K. Ichimoto; Y. Katsukawa; B. W. Lites; S. Nagata; K. Shibata; T. Shimizu; R. A. Shine; Y. Suematsu; T. D. Tarbell; A. M. Title
  SCIENCE, AMER ASSOC ADVANCEMENT SCIENCE, 318(5856) 1577 - 1580, Dec. 2007, Scientific journal
  

  DOI URL
• Chromospheric anemone jets as evidence of ubiquitous reconnection
  Kazunari Shibata; Tahei Nakamura; Takuma Matsumoto; Kenichi Otsuji; Takenori J. Okamoto; Naoto Nishizuka; Tomoko Kawate; Hiroko Watanabe; Shin'ichi Nagata; Satoru UeNo; Reizaburo Kitai; Satoshi Nozawa; Saku Tsuneta; Yoshinori Suematsu; Kiyoshi Ichimoto; Toshifumi Shimizu; Yukio Katsukawa; Theodore D. Tarbell; Thomas E. Berger; Bruce W. Lites; Richard A. Shine; Alan M. Title
  SCIENCE, AMER ASSOC ADVANCEMENT SCIENCE, 318(5856) 1591 - 1594, Dec. 2007, Scientific journal
  

  DOI URL
• Umbral fine structures in sunspots observed with Hinode Solar Optical Telescope
  Kitai Reizaburo; Watanabe Hiroko; Nakamura Tahei; Otsuji Ken-Ichi; Matsumoto Takuma; Ueno Satoru; Nagata Shin'ichi; Shibata Kazunari; Muller Richard; Ichimoto Kiyoshi; Tsuneta Saku; Suematsu Yoshinori; Katsukawa Yukio; Shimizu Toshifumi; Tarbell Theodore D; Shine Richard A; Title Alan M; Lites Bruce
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Astronomical Society of Japan, 59(3) S585 - S591, 30 Nov. 2007
• Small-scale magnetic-flux emergence observed with Hinode Solar Optical Telescope
  Otsuji Kenichi; Shibata Kazunari; Kitai Reizaburo; Ueno Satoru; Nagata Shin'ichi; Matsumoto Takuma; Nakamura Tahei; Watanabe Hiroko; Tsuneta Saku; Suematsu Yoshinori; Ichimoto Kiyoshi; Shimizu Toshifumi; Katsukawa Yukio; Tarbell Theodore D; Lites Bruce; Shine Richard A; Title Alan M
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Astronomical Society of Japan, 59(3) S649 - S654, 30 Nov. 2007
• Velocity structure of jets in a coronal hole
  Suguru Kamio; Hirohisa Hara; Tetsuya Watanabe; Keiichi Matsuzaki; Kazunari Shibata; Len Culhane; Harry P. Warren
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 59 S757 - S762, Nov. 2007, Scientific journal
  

  DOI URL
• Triggering mechanism for the filament eruption on 2005 September 13 in NOAA active region 10808
  Kaori Nagashima; Hiroaki Isobe; Takaaki Yokoyama; Takako T. Ishii; Takenori J. Okamoto; Kazunari Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 668(1) 533 - 545, Oct. 2007, Scientific journal
  

  DOI URL
• General relativistic simulations of jet formation in Kerr black hole magnetosphere
  S. Koide; K. Shibata; T. Kudoh
  Computer Physics Communications, 177(1-2 SPEC. ISS.) 254 - 256, Jul. 2007, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Oblique shocks in the reconnection jet in solar flares
  Syuniti Tanuma; Kazunari Shibata
  NEW SOLAR PHYSICS WITH SOLAR-B MISSION, ASTRONOMICAL SOC PACIFIC, 369 443 - 446, 2007, International conference proceedings
• Evolution of H alpha kernels and energy release in an X-class flare
  Ayumi Asai; Takaaki Yokoyama; Masumi Shimojo; Satoshi Masuda; Kazunari Shibata
  NEW SOLAR PHYSICS WITH SOLAR-B MISSION, ASTRONOMICAL SOC PACIFIC, 369 461 - +, 2007, International conference proceedings
• Magnetohydrodynamic numerical simulations of emerging flux tube for studying effects of twist intensity
  Takehiro Miyagoshi; Hiroaki Isobe; Takaaki Yokoyama; Kazunari Shibata
  NEW SOLAR PHYSICS WITH SOLAR-B MISSION, ASTRONOMICAL SOC PACIFIC, 369 377 - +, 2007, International conference proceedings
• Three-dimensional MHD Simulations of emerging flux and associated magnetic reconnection
  Hiroaki Isobe; Takehiro Miyagoshi; Kazunari Shibata; Takaaki Yokoyama
  NEW SOLAR PHYSICS WITH SOLAR-B MISSION, ASTRONOMICAL SOC PACIFIC, 369 355 - +, 2007, International conference proceedings
• The effect of neutrino radiation on magnetorotational instability in proto-neutron stars
  Masada, Youhei; Sano, Takayoshi; Shibata, Kazunari
  The Astrophysical Journal, 655(1) 447 - 457, 2007, Scientific journal
  

  DOI URL
• Dead zone formation and nonsteady hyperaccretion in collapsar disks: A possible origin of short-term variability in the prompt emission of gamma-ray bursts
  Masada, Youhei; Kawanaka, Norita; Sano, Takayoshi; Shibata, Kazunari
  The Astrophysical Journal, 663(1) 437 - 444, 2007, Scientific journal
  

  DOI URL
• XRT and EIS observations of reconnection associated phenomena
  Shiota Daikou; Isobe Hiroaki; Brooks David H; Chen Peng-Fei; Shibata Kazunari
  NEW SOLAR PHYSICS WITH SOLAR-B MISSION, ASTRONOMICAL SOC PACIFIC, 369 439-442 - +, 2007, Scientific journal
• Jet formation driven by the expansion of magnetic bridges between the ergosphere and the disk around a rapidly rotating black hole
  Shinji Koide; Takahiro Kudoh; Kazunari Shibata
  Physical Review D - Particles, Fields, Gravitation and Cosmology, 74, 14 Aug. 2006
  

  URLDOI URL
• Jet formation driven by the expansion of magnetic bridges between the ergosphere and the disk around a rapidly rotating black hole
  Shinji Koide; Takahiro Kudoh; Kazunari Shibata
  PHYSICAL REVIEW D, AMER PHYSICAL SOC, 74(4), Aug. 2006, Scientific journal
  

  DOI URL
• Three-dimensional simulation of solar emerging flux using the earth simulator I. Magnetic Rayleigh-Taylor instability at the top of the emerging flux as the origin of filamentary structure
  Hiroaki Isobe; Takehiro Miyagoshi; Kazunari Shibata; Takaaki Yokoyama
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD UNIV PRESS, 58(2) 423 - 438, Apr. 2006, Scientific journal
• Statistical analysis of reconnection inflows in solar flares observed with SOHO EIT
  Noriyuki Narukage; Kazunari Shibata
  Astrophysical Journal, 637(2 I) 1122 - 1134, 01 Feb. 2006, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Statistical analysis of reconnection inflows in solar flares observed with SOHO EIT
  N Narukage; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 637(2) 1122 - 1134, Feb. 2006, Scientific journal
  

  DOI URL
• Flare ribbon expansion and energy release
  Ayumi Asai; Takaaki Yokoyama; Masumi Shimojo; Satoshi Masuda; Kazunari Shibata
  Journal of Astrophysics and Astronomy, Indian Academy of Sciences, 27(2-3) 167 - 173, 2006, International conference proceedings
  

  DOI URL
• Magnetohydrodynamic numerical simulations of emerging flux and associated active phenomena in the solar atmosphere
  Miyagoshi Takehiro; Isobe Hiroaki; Yokoyama Takaaki; Shibata Kazunari
  NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2006, 359 164 - 170, 2006
• Self-consistent magnetohydrodynamic modeling of a coronal mass ejection, coronal dimming, and a giant cusp-shaped arcade formation
  Daikou Shiota; Hiroaki Isobe; P. F. Chen; Tetsuya T. Yamamoto; Takuma Sakajiri; Kazunari Shibata
  Astrophysical Journal, 634 663-678 , 20 Nov. 2005, Scientific journal
  

  DOI URL
• Measurement of the energy release rate and the reconnection rate in solar flares
  H Isobe; H Takasaki; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 632(2) 1184 - 1195, Oct. 2005, Scientific journal
  

  DOI URL
• General relativistic magnetohydrodynamic simulations of collapsars: Rotating black hole cases
  Y Mizuno; S Yamada; S Koide; K Shibata
  NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-COLLOQUIA ON PHYSICS, SOC ITALIANA FISICA, 28(3) 423 - 426, May 2005, Scientific journal
  

  DOI URL
• A general relativistic magnetohydrodynamic simulation of jet formation
  KI Nishikawa; G Richardson; S Koide; K Shibata; T Kudoh; P Hardee; GJ Fishman
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 625(1) 60 - 71, May 2005, Scientific journal
  

  DOI URL
• Filamentary structure on the Sun from the magnetic Rayleigh-Taylor instability
  H Isobe; T Miyagoshi; K Shibata; T Yokoyama
  NATURE, NATURE PUBLISHING GROUP, 434(7032) 478 - 481, Mar. 2005, Scientific journal
  

  DOI URL
• The acceleration mechanism of resistive magnetohydrodynamic jets launched from accretion disks
  Kuwabara T; Shibata K; Kudoh T; Matsumoto R
  ASTROPHYSICAL JOURNAL, 621(2) 921 - 931, Mar. 2005, Scientific journal
  

  DOI URL
• Magnetic fields and intensity changes in coronal dimming regions
  G. D.R. Attrill; N. Narukage; K. Shibata; L. K. Harra
  European Space Agency, (Special Publication) ESA SP, (596) 205 - 210, 2005, International conference proceedings
  

  Scopus URLScopus Citedby URL
• A study of a tiny two-ribbon flare driven by emerging flux
  Takuma Sakajiri; Takuma Sakajiri; David H. Brooks; Tetsuya Yamamoto; Tetsuya Yamamoto; Daikou Shiota; Daikou Shiota; Hiroaki Isobe; Sachiko Akiyama; Sachiko Akiyama; Satoru Ueno; Reizaburo Kitai; Kazunari Shibata
  Astrophysical Journal, 616 578-586 , 20 Nov. 2004, Scientific journal
  

  DOI URL
• General Relativistic Magnetohydrodynamic Simulations of Collapsars: Rotating Black Hole Cases
  Yosuke Mizuno; Shoichi Yamada; Shinji Koide; Kazunari Shibata
  Astorophysical Journal, 615 401 - 401, Nov. 2004
• A quantitative study of the homologous flares on 2000 November 24
  H Takasaki; A Asai; J Kiyohara; M Shimojo; T Terasawa; Y Takei; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 613(1) 592 - 599, Sep. 2004, Scientific journal
  

  DOI URL
• Flare ribbon expansion and energy release rate
  A Asai; T Yokoyama; M Shimojo; S Masuda; H Kurokawa; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 611(1) 557 - 567, Aug. 2004, Scientific journal
  

  DOI URL
• Quasi-periodic inward shock formations in the system of a black hole and an accretion disk and application to quasi-periodic oscillations in galactic black hole candidates
  Seiichiro I. Aoki; Shinji Koide; Takahiro Kudoh; Kunji Nakayama; Kazunari Shibata
  Astrophysical Journal, 610 897 - 912, 01 Aug. 2004
  

  URLDOI URL
• Filament oscillations and moreton waves associated with EIT waves
  TJ Okamoto; H Nakai; A Keiyama; N Narukage; U Satoru; R Kitai; H Kurokawa; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 608(2) 1124 - 1132, Jun. 2004, Scientific journal
  

  DOI URL
• EFFICIENT COMPUTATION OF MAGNETO-HYDRODYNAMIC PHENOMENA IN ASTROPHYSICS BY CCUP-MOCCT METHOD
  Youichi Ogata; Takashi Yabe; Kazunari Shibata; Takahiro Kudoh
  INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS, WORLD SCIENTIFIC PUBL CO PTE LTD, 1(1) 201 - 225, Jun. 2004, Scientific journal
  

  DOI URL
• General Relativistic Magnetohydrodynamic Simulations of Collapsars
  Yosuke Mizuno; Shoichi Yamada; Shinji Koide; Kazunari Shibata
  Astrophysical Journal, 606 412 - 412, May 2004
• Downflow motions associated with impulsive nonthermal emissions observed in the 2002 July 23 solar flare
  A Asai; T Yokoyama; M Shimojo; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 605(1) L77 - L80, Apr. 2004, Scientific journal
  

  DOI URL
• A reexamination of the evidence for reconnection inflow
  PF Chen; K Shibata; DH Brooks; H Isobe
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 602(1) L61 - L64, Feb. 2004, Scientific journal
• The nonlinear alfvén wave model for solar coronal heating and nanoflares
  Satoshi Moriyasu; Takahiro Kudoh; Takaaki Yokoyama; Kazunari Shibata
  Astrophysical Journal, 601, 20 Jan. 2004
  

  Permalink
• Three-dimensional MHD simulation of convection and emerging flux
  H Isobe; K Shibata
  Solar-B Mission and the Forefront of Solar Physics, Proceedings, ASTRONOMICAL SOC PACIFIC, 325 63 - 67, 2004, International conference proceedings
• Spectroscopic detection of magnetic reconnection evidence in the solar atmosphere with Solar-B/EIS
  DH Brooks; H Isobe; K Shibata; PF Chen; AC Lanzafame
  Solar-B Mission and the Forefront of Solar Physics, Proceedings, ASTRONOMICAL SOC PACIFIC, 325 367 - 372, 2004, International conference proceedings
• Simulated XRT and EIS observations of magnetic reconnection in coronal mass ejection and X-ray arcade
  D Shiota; H Sobe; DH Brooks; K Shibata; PF Chen
  Solar-B Mission and the Forefront of Solar Physics, Proceedings, ASTRONOMICAL SOC PACIFIC, 325 373 - 378, 2004, International conference proceedings
• Jet phenomena in the solar atmosphere caused by interaction between emerging flux and coronal fields
  T Miyagoshi; T Yokoyama; H Isobe; K Shibata
  Solar-B Mission and the Forefront of Solar Physics, Proceedings, ASTRONOMICAL SOC PACIFIC, 325 69 - 74, 2004, International conference proceedings
• Computational relativistic fluids and jet formation
  G Richardson; KI Nishikawa; S Koide; K Shibata
  GAMMA-RAY BURSTS: 30 YEARS OF DISCOVERY, AMER INST PHYSICS, 727 286 - 289, 2004, International conference proceedings
• Magnetohydrodynamical Accretion Flows : Formation of Magnetic Tower Jet and Subsequent Quasi-Steady State(Poster) :
  KATO Yoshiaki; MINESHIGE Shin; SHIBATA Kazunari
  Progress of theoretical physics. Supplement, Progress of Theoretical Physics, (155) 353 - 354, 2004
  

  DOI URL
• Long Term Simulations of Astrophysical Jets(Poster) :
  IBRAHIM Ahmed; SATO Kazuhisa; SHIBATA Kazunari
  Progress of theoretical physics. Supplement, Progress of Theoretical Physics, (155) 343 - 344, 2004
  

  DOI URL
• Downflow as a reconnection outflow
  A Asai; K Shibata; T Yokoyama; M Shimojo
  Solar-B Mission and the Forefront of Solar Physics, Proceedings, ASTRONOMICAL SOC PACIFIC, 325 361 - 366, 2004, International conference proceedings
• X-ray expanding features associated with a Moreton wave
  Noriyuki Narukage; Taro Morimoto; Miwako Kadota; Reizaburo Kitai; Hiroki Kurokawa; Kazunari Shibata
  Publications of the Astronomical Society of Japan, 56(2), 2004, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Observations of Flare-Associated Waves with Solar-B
  N Narukage; K Shibata
  Solar-B Mission and the Forefront of Solar Physics, Proceedings, ASTRONOMICAL SOC PACIFIC, 325 389 - 394, 2004, International conference proceedings
• H I Jet G40 - 15 from a rotating cloud in the 4-kpc molecular ring: Magnetized outflow and formation of a dense star cluster
  Yoshiaki Sofue; Takahiro Kudoh; Akiko Kawamura; Kazunari Shibata; Mitsuaki Fujimoto
  Publications of the Astronomical Society of Japan, 56 633 - 643, 01 Jan. 2004
  

  URLDOI URL
• General Relativistic MHD Simulations of the Gravitational Collapse of a Rotating Star with Magnetic Field as a Model of Gamma-Ray Bursts
  Yosuke Mizuno; Shoichi Yamada; Shinji Koide; Kazunari Shibata
  the 2003 GRB Conference, Progress of Theoretical Physics, (155) 387 - 388, Dec. 2003
  

  DOI URL
• Slow and fast MHD shocks associated with a giant cusp-shaped arcade on 1992 January 24
  Daikou Shiota; Daikou Shiota; Tetsuya T. Yamamoto; Takuma Sakajiri; Hiroaki Isobe; Peng Fei Chen; Kazunari Shibata
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 55(3) . - 39, 15 Sep. 2003, Scientific journal
• Erratum: Analysis of the temperature and emission measure of solar coronal arcades and test of a scaling law of flare/arcade loop length (The Astrophysical Journal (2002) 579 (L45))
  Tetsuya T. Yamamoto; Daikou Shiota; Takuma Sakajiri; Sachiko Akiyama; Hiroaki Isobe; Kazunari Shibata
  Astrophysical Journal, 592 - , 01 Aug. 2003, Scientific journal
  

  DOI URL
• Evolution of flare ribbons and energy release
  A Asai; S Masuda; T Yokoyama; M Shimojo; H Kurokawa; TT Ishii; K Shibata
  ENERGY RELEASE AND PARTICLE ACCELERATION IN THE SOLAR ATMOSPHERE - FLARES AND RELATED PHENOMENA, PERGAMON-ELSEVIER SCIENCE LTD, 32(12) 2561 - 2566, 2003, Scientific journal
  

  DOI URL
• Magnetic reconnection triggered by the Parker instability in the galaxy: Two-dimensional numerical magnetohydrodynamic simulations and application to the origin of X-ray gas in the Galactic halo
  Syuniti Tanuma; Takaaki Yokoyama; Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, Institute of Physics Publishing, 582(1 I) 215 - 229, 01 Jan. 2003, Scientific journal
  

  DOI URL
• MHD simulations of jets from accretion disks
  Kudoh T; Matsumoto R; Shibata K
  ASTROPHYSICS AND SPACE SCIENCE, 287(1-4) 99 - 102, 2003, International conference proceedings
  

  DOI URL
• Dawn-dusk asymmetry'' in solar coronal arcade formations
  H Isobe; K Shibata; S Machida
  GEOPHYSICAL RESEARCH LETTERS, AMER GEOPHYSICAL UNION, 29(21) 10 - 1, Nov. 2002, Scientific journal
  

  DOI URL
• Analysis of the temperature and emission measure of solar coronal arcades and test of a scaling law of flare/arcade loop length
  TT Yamamoto; D Shiota; T Sakajiri; S Akiyama; H Isobe; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 579(1) L45 - L48, Nov. 2002, Scientific journal
  

  DOI URL
• Difference between spatial distributions of the H alpha kernels and hard X-ray sources in a solar flare
  A Asai; S Masuda; T Yokoyama; M Shimojo; H Isobe; H Kurokawa; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 578(1) L91 - L94, Oct. 2002, Scientific journal
  

  DOI URL
• Simultaneous observation of a moreton wave on 1997 November 3 in Hα and soft X-rays
  N. Narukage; H. S. Hudson; T. Morimoto; S. Akiyama; R. Kitai; H. Kurokawa; K. Shibata
  Astrophysical Journal, 572(1 II), 10 Jun. 2002, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Simultaneous observation of a Moreton wave on 1997 November 3 in H alpha and soft X-rays
  N Narukage; HS Hudson; T Morimoto; S Akiyama; R Kitai; H Kurokawa; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 572(1) L109 - L112, Jun. 2002, Scientific journal
  

  DOI URL
• Are jets ejected from locally magnetized accretion disks?
  Takahiro Kudoh; Ryoji Matsumoto; Kazunari Shibata
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 54(2) 267 - 274, 25 Apr. 2002, Scientific journal
• Extraction of black hole rotational energy by a magnetic field and the formation of relativistic jets
  S Koide; K Shibata; T Kudoh; DL Meier
  SCIENCE, AMER ASSOC ADVANCEMENT SCIENCE, 295(5560) 1688 - 1691, Mar. 2002, Scientific journal
  

  DOI URL
• Effect of a magneto-rotational instability on jets from accretion disks
  Takahiro Kudoh; Ryoji Matsumoto; Kazunari Shibata
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 54(1) 121 - 130, 25 Feb. 2002, Scientific journal
• Reconnection rate in the decay phase of a long duration event flare on 1997 May 12
  Hiroaki Isobe; Takaaki Yokoyama; Masumi Shimojo; Taro Morimoto; Hiromichi Kozu; E. T.O. Shigeru; Noriyuki Narukage; Kazunari Shibata
  Astrophysical Journal, 566(1 I) 528 - 538, 10 Feb. 2002, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Reconnection rate in the decay phase of a long duration event flare on 1997 May 12
  H Isobe; T Yokoyama; M Shimojo; T Morimoto; H Kozu; S Eto; N Narukage; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 566(1) 528 - 538, Feb. 2002, Scientific journal
  

  DOI URL
• Simulation of jet formation from magnetized accretion disk around Kerr black hole
  S Koide; K Shibata; T Kudoh; DL Meier
  LIGHTHOUSES OF THE UNIVERSE: THE MOST LUMINOUS CELESTIAL OBJECTS AND THEIR USE FOR COSMOLOGY, SPRINGER-VERLAG BERLIN, 456 - 458, 2002, International conference proceedings
• Fine structure inside flare ribbons and its temporal evolution
  A Asai; S Masuda; T Yokoyama; M Shimojo; H Kurokawa; K Shibata; TT Ishii; R Kitai; H Isobe; K Yaj
  MULTI-WAVELENGTH OBSERVATIONS OF CORONAL STRUCTURE AND DYNAMICS, PERGAMON-ELSEVIER SCIENCE LTD, 13(C) 221 - 224, 2002, International conference proceedings
  

  DOI URL
• Relation between a Moreton wave and an EIT wave observed on 1997 November 4
  Shigeru Eto; Hiroaki Isobe; Noriyuki Narukage; Ayumi Asai; Taro Morimoto; Barbara Thompson; Seiji Yashiro; Tongjiang Wang; Reizaburo Kitai; Hiroki Kurokawa; Kazunari Shibata
  Publications of the Astronomical Society of Japan, 54(3) 481 - 491, 2002, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Statistical study of the reconnection rate in solar flares
  H. Isobe; T. Morimoto; S. Eto; N. Narukage; K. Shibata
  COSPAR Colloquia Series, 13(C) 171 - 172, 2002, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Observations of moreton waves and EIT waves
  K. Shibata; S. Eto; N. Narukage; H. Isobe; T. Morimoto; H. Kozu; A. Asai; T. Ishii; S. Akiyama; S. Ueno; R. Kitai; H. Kurokawa; S. Yashiro; B.J. Thompson; T. Wang; H.S. Hudson
  COSPAR Colloquia Series, 13(C) 279 - 282, 2002, Scientific journal
  

  DOI URLScopus URLScopus Citedby URL
• Multi-wavelength observation of a moreton wave on November 3, 1997
  N. Narukage; K. Shibata; H.S. Hudson; S. Eto; H. Isobe; A. Asai; T. Morimoto; H. Kozu; T.T. Ishii; S. Akiyama; R. Kitai; H. Kurokawa
  COSPAR Colloquia Series, 13(C) 295 - 296, 2002, Scientific journal
  

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• 2.5-dimensional nonsteady magnetohydrodynamic simulations of magnetically driven jets from geometrically thin disks
  Seiichi X. Kato; Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, 565 1035 - 1049, 01 Jan. 2002
  

  URLDOI URL
• What determines the height of spicules? I. Alfvén-wave model and slow-wave model
  Takuya Saito; Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, 554 1151 - 1158, 20 Jun. 2001
  

  URLDOI URL
• Plasmoid-induced-reconnection and fractal reconnection
  SHIBATA Kazunari; TANUMA Syuniti
  Journal of geomagnetism and geoelectricity, The Seismological Society of Japan, Society of Geomagnetism and Earth, Planetary and Space Sciences, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences, 53(6) 473 - 482, Jun. 2001
  

  DOI URL
• One-dimensional and pseudo-two-dimensional hydrodynamic simulations of solar X-ray jets
  M Shimojo; K Shibata; T Yokoyama; K Hori
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 550(2) 1051 - 1063, Apr. 2001, Scientific journal
  

  DOI URL
• Three-dimensional numerical magnetohydrodynamic simulations of magnetic reconnection as the origin of X-ray gas in the Galaxy
  S Tanuma; T Yokoyama; T Kudoh; K Shibata
  NEW CENTURY OF X-RAY ASTRONOMY, ASTRONOMICAL SOC PACIFIC, 251 320 - 321, 2001, International conference proceedings
• 宇宙ジェットのMHDシミュレーション(プラズマと宇宙ジェット,21世紀を迎える理論天文学の総括と展望,研究会報告)
  加藤 精一; 工藤 哲洋; 柴田 一成
  素粒子論研究, 素粒子論グループ 素粒子論研究 編集部, 103(4) D88 - D90, 2001
  

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• General Relativistic Simulations of Jet Formation by a Rapidly Rotating Black Hole
  Koide S.; Shibata K.; Kudoh T.
  Soryushiron Kenkyu Electronics, Soryushiron Kenkyu Editorial Office, 103(4) D98 , 2001
  

  DOI URL
• 太陽フレアの磁気流体シミュレーション : 熱伝導・彩層蒸発・放射冷却の効果(プラズマと宇宙ジェット,21世紀を迎える理論天文学の総括と展望,研究会報告)
  横山 央明; 柴田 一成
  素粒子論研究, 素粒子論グループ 素粒子論研究 編集部, 103(4) D103 , 2001
  

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• Solar photospheric magnetic reconnection
  Takeuchi Akitsugu; Shibata Kazunari
  Journal of geomagnetism and geoelectricity, The Seismological Society of Japan, Society of Geomagnetism and Earth, Planetary and Space Sciences, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences, 53(6) 605 - 609, 2001
  

  DOI URL
• Resistive Magnetohydrodynamics of Jet Formation and Magnetically Driven Accretion
  KUWABARA Takuhito; SHIBATA Kazunari; KUDOH Takahiro; MATSUMOTO Ryoji
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 52(6) 1109 - 1124, Dec. 2000, Scientific journal
• Physical parameters of solar X-ray jets
  M Shimojo; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 542(2) 1100 - 1108, Oct. 2000, Scientific journal
  

  DOI URL
• Dynamics of the parker-jeans instability in a galactic gaseous disk
  Wenchien Chou; Ryoji Matsumoto; Toshiki Tajima; Michihisa Umekawa; Kazunari Shibata
  Astrophysical Journal, 538(2) 710 - 727, Aug. 2000, Scientific journal
  

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• General relativistic simulations of early jet formation in a rapidly rotating black hole magnetosphere
  S Koide; DL Meier; K Shibata; T Kudoh
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 536(2) 668 - 674, Jun. 2000, Scientific journal
  

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• Collimation of magnetically driven outflows from accretion disks
  Kudoh T; Matsumoto R; Shibata K
  HIGHLY ENERGETIC PHYSICAL PROCESSES AND MECHANISMS FOR EMISSION FROM ASTROPHYSICAL PLASMAS, Proceedings of IAU Symposium, 195 407 - 408, May 2000, International conference proceedings
• Observational evidence of magnetic reconnection in solar X-ray jets
  M Shimojo; K Shibata
  MAGNETIC RECONNECTION PROCESSES IN THE SOLAR ATMOSPHERE, PERGAMON PRESS LTD, 26(3) 449 - 452, 2000, Scientific journal
• Thermal evolution of coronal active regions observed with the Yohkoh Soft X-Ray Telescope
  S Yashiro; K Shibata; M Shimojo
  CORONAL STRUCTURE AND DYNAMICS NEAR SOLAR ACTIVITY MINIMUM, PERGAMON PRESS LTD, 25(9) 1773 - 1776, 2000, Scientific journal
• Which forces accelerate jets?
  SX Kato; T Kudoh; K Shibata
  HIGHLY ENERGETIC PHYSICAL PROCESSES AND MECHANISMS FOR EMISSION FROM ASTROPHYSICAL PLASMAS, ASTRONOMICAL SOC PACIFIC, (195) 401 - 402, 2000, Scientific journal
• Jets from black hole magnetospheres
  K Shibata; S Koide; T Kudoh; S Aoki
  HIGHLY ENERGETIC PHYSICAL PROCESSES AND MECHANISMS FOR EMISSION FROM ASTROPHYSICAL PLASMAS, ASTRONOMICAL SOC PACIFIC, (195) 265 - 272, 2000, Scientific journal
• Recurrent magnetic reconnection in protostellar magnetospheres
  M Hayashi; K Shibata; R Matsumoto
  MAGNETIC RECONNECTION PROCESSES IN THE SOLAR ATMOSPHERE, PERGAMON PRESS LTD, 26(3) 567 - 570, 2000, Scientific journal
  

  DOI URL
• Simultaneous H alpha and X-ray observations of prominence eruption and disappearance
  H Tonooka; R Matsumoto; S Miyaji; SF Martin; RC Canfield; K Reardon; A McAllister; K Shibata
  MAGNETIC RECONNECTION PROCESSES IN THE SOLAR ATMOSPHERE, PERGAMON PRESS LTD, 26(3) 473 - 476, 2000, Scientific journal
  

  DOI URL
• Formation of localized strongly magnetized regions in galaxies and clusters of galaxies
  R Matsumoto; A Valinia; T Tajima; K Makishima; K Shibata
  BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, PERGAMON PRESS LTD, 25(3-4) 499 - 504, 2000, Scientific journal
  

  DOI URL
• General-relativistic MHD simulation of jets from a geometrically thin accretion disk around a Schwarzschild black hole
  SI Aoki; S Koide; K Shibata; T Kudoh
  HIGHLY ENERGETIC PHYSICAL PROCESSES AND MECHANISMS FOR EMISSION FROM ASTROPHYSICAL PLASMAS, ASTRONOMICAL SOC PACIFIC, (195) 373 - 374, 2000, Scientific journal
• Magnetically driven jets from accretion disks: The effect of magneto-rotational instability
  Kudoh T; Matsumoto R; Shibata K
  Advances in Space Research, 23(516) 1101 - 1104, Dec. 1999, International conference proceedings
  

  URLDOI URL
• Relativistic jet formation from black hole magnetized accretion disks: Method, tests, and applications of a general relativistic magnetohydrodynamic numerical code
  Shinji Koide; Kazunari Shibata; Takahiro Kudoh
  Astrophysical Journal, IOP PUBLISHING LTD, 522(2) 727 - 752, 10 Sep. 1999, Scientific journal
  

  DOI URL
• A microwave study of coronal ejecta
  MR Kundu; A Nindos; JP Raulin; K Shibasaki; SM White; N Nitta; K Shibata; M Shimojo
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 520(1) 391 - 398, Jul. 1999, Scientific journal
• Occurrence rate of microflares in an X-ray bright point within an active region
  M Shimojo; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 516(2) 934 - 938, May 1999, Scientific journal
  

  DOI URL
• Alfvén wave model of spicules and coronal heating
  Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, 514 493 - 505, 20 Mar. 1999
  

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• Magnetic reconnection as the origin of galactic-ridge x-ray emission
  Tanuma S; Yokoyama T; Kudoh T; Matsumoto R; Shibata K; Makishima K
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Astronomical Society of Japan, 51(1) 161 - 171, Feb. 1999, Scientific journal
• Two-dimensional numerical MHD simulation of magnetic reconnection in galaxy - Reconnection triggered by supernova and parker instability
  S Tanuma; T Yokoyama; T Kudoh; K Shibata
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 119 - 120, 1999, International conference proceedings
• General relativistic jet formation from magnetized accretion disk around black hole
  S Koide; K Shibata; T Kudoh
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 215 - 216, 1999, International conference proceedings
• Magnetohydrodynamic simulations of high-beta disks and low-beta
  T Matsuzaki; K Shibata; T Tajima; R Matsumoto
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 235 - 236, 1999, International conference proceedings
  

  DOI URL
• Resistive MHD simulations of magnetically driven mass accretion in active galactic nuclei
  T Kuwabara; R Matsumoto; K Shibata
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 229 - 230, 1999, International conference proceedings
  

  DOI URL
• Magneto hydrodynamic simulations of magnetically driven mass accretion in active galactic nuclei
  T Kuwabara; R Matsumoto; K Shibata
  AGN/NORMAL GALAXY CONNECTION, PERGAMON PRESS LTD, 23(5/6) 1105 - 1108, 1999, Scientific journal
  

  DOI URL
• Three-dimensional MHD simulations of the emergence of twisted magnetic flux tubes in the solar atmosphere
  H Tonooka; R Matsumoto; W Chou; T Tajima; K Shibata
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 343 - 344, 1999, International conference proceedings
  

  DOI URL
• Dynamics of a magnetic flux tube in differentially rotating disks
  A Kuwabara; R Matsumoto; K Shibata; WC Chou
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 233 - 234, 1999, International conference proceedings
  

  DOI URL
• Magnetohydrodynamic simulations of recurrent X-ray flares in protostars - Simulations of recurrent X-ray flares
  M Hayashi; K Shibata; R Matsumoto
  NUMERICAL ASTROPHYSICS, SPRINGER, 240 231 - 232, 1999, International conference proceedings
  

  DOI URL
• Global three-dimensional MHD simulations of accretion disks and jet formation in AGNs
  R Matsumoto; K Shibata
  AGN/NORMAL GALAXY CONNECTION, PERGAMON PRESS LTD, 23(5/6) 1109 - 1113, 1999, Scientific journal
  

  DOI URL
• 2.5D nonsteady MHD simulations of magnetically driven jets from accretion disks by using the CIP-MOCCT method
  Kudoh T; Shibata K; Matsumoto R
  NUMERICAL ASTROPHYSICS, Astrophysics and Space Science Library, 240 203 - 206, 1999, International conference proceedings
  

  DOI URL
• Numerical MHD Simulations of Astrophysical Problems by Using CIP-MOCCT Method
  Kudoh, T; Matsumoto, R; Shibata, K
  Computational Fluid Dynamics Journal, 8(1) 56 - 68, 1999, Scientific journal
• Magnetically driven jets from accretion disks. III. 2.5-dimensional nonsteady simulations for thick disk case
  Kudoh T; Matsumoto R; Shibata K
  ASTROPHYSICAL JOURNAL, 508(1) 186 - 199, Nov. 1998, Scientific journal
  

  DOI URL
• Magnetic field properties of solar X-ray jets
  M Shimojo; K Shibata; KL Harvey
  SOLAR PHYSICS, SPRINGER, 178(2) 379 - 392, Mar. 1998, Scientific journal
  

  DOI URL
• Early evolution of coronal active regions observed with the Yohkoh soft X-ray telescope. I. Expansion velocity
  S Yashiro; K Shibata; M Shimojo
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 493(2) 970 - +, Feb. 1998, Scientific journal
• Evolution of coronal active regions observed with the Yohkoh Soft X-ray Telescope
  S Yashiro; K Shibata; M Shimojo
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 379 - 382, 1998, International conference proceedings
• Physical parameters of solar X-ray jets
  M Shimojo; K Shibata; K Hori; T Yokoyama
  PROCEEDINGS OF AN INTERNATIONAL MEETING ON SOLAR JETS AND CORONAL PLUMES, EUROPEAN SPACE AGENCY, 421 163 - 168, 1998, International conference proceedings
• Study of solar X-ray jets observed by the Yohkoh Soft X-ray Telescope
  M Shimojo; K Shibata
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 357 - 360, 1998, International conference proceedings
• Soft X-ray features of prominence eruption and disappearance
  H Tonooka; R Matsumoto; S Miyaji; SF Martin; RC Canfield; K Reardon; A McAllister; K Shibata
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 371 - 374, 1998, International conference proceedings
• X-ray plasma ejections and jets from solar compact flares observed with the Yohkoh soft X-ray telescope
  M Ohyama; K Shibata; M Shimojo; T Yokoyama
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 333 - 336, 1998, International conference proceedings
• Magnetic reconnection as the origin of superhot plasmas in the Galactic center
  T Yokoyama; S Tanuma; T Kudoh; K Shibata
  CENTRAL REGIONS OF THE GALAXY AND GALAXIES, SPRINGER, 355 - 356, 1998, International conference proceedings
• Alfven wave model of spicules
  T Kudoh; K Shibata
  PROCEEDINGS OF AN INTERNATIONAL MEETING ON SOLAR JETS AND CORONAL PLUMES, EUROPEAN SPACE AGENCY, 421 281 - 285, 1998, International conference proceedings
• Numerical simulation of relativistic jet formation in black hole magnetosphere
  S Koide; K Shibata; T Kudoh
  HOT UNIVERSE, KLUWER ACADEMIC PUBL, (188) 415 - 416, 1998, Scientific journal
• Numerical simulation of relativistic jet formation in black hole magnetosphere
  S Koide; K Shibata; T Kudoh
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 149 - 154, 1998, International conference proceedings
• The supply of magnetic fields from a cd galaxy to intra-cluster space
  H Hirashita; S Mineshige; K Shibata; R Matsumoto
  HOT UNIVERSE, KLUWER ACADEMIC PUBL, (188) 306 - 307, 1998, Scientific journal
• Magnetohydrodynamics of accretion disks
  R Matsumoto; T Matsuzaki; T Tajima; K Shibata
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 115 - 120, 1998, International conference proceedings
• Formation of a kinked alignment of solar active regions
  R Matsumoto; T Tajima; WC Chou; A Okubo; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 493(1) L43 - +, Jan. 1998, Scientific journal
  

  DOI URL
• Magnetic avalanche model of mass supply in active galactic nuclei
  T Kuwabara; R Matsumoto; K Shibata
  CENTRAL REGIONS OF THE GALAXY AND GALAXIES, SPRINGER, 365 - 366, 1998, International conference proceedings
• Magnetic reconnection and flares in star forming regions: Flares in protostars
  M Hayashi; K Shibata; R Matsumoto
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 137 - 142, 1998, International conference proceedings
• Three-dimensional local MHD simulations of high states and low states in magnetic accretion disks
  T Matsuzaki; R Matsumoto; T Tajima; K Shibata
  HOT UNIVERSE, KLUWER ACADEMIC PUBL, (188) 400 - 401, 1998, Scientific journal
• Three-dimensional global MHD simulations of jet formation in active galactic nuclei
  R Matsumoto; K Shibata
  CENTRAL REGIONS OF THE GALAXY AND GALAXIES, SPRINGER, 363 - 364, 1998, International conference proceedings
• Magnetic field amplification and intergalactic plasma heating through magnetic twist injection from rotating galaxies
  R Matsumoto; A Valinia; T Tajima; S Mineshige; K Shibata
  HOT UNIVERSE, KLUWER ACADEMIC PUBL, (188) 315 - 316, 1998, Scientific journal
• Flares and MHD jets in protostar
  M Hayashi; K Shibata; R Matsumoto
  HOT UNIVERSE, SPRINGER, (188) 232 - 233, 1998, Scientific journal
• Local three-dimensional MHD simulations of the Parker instability in differentially rotating disks
  T Matsuzaki; R Matsumoto; T Tajima; K Shibata
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, SPRINGER, 229 321 - 324, 1998, International conference proceedings
• General relativistic magnetohydrodynamic simulations of jets from black hole accretion disks: Two-component jets driven by nonsteady accretion of magnetized disks
  Shinji Koide; Kazunari Shibata; Takahiro Kudoh
  Astrophysical Journal, 495, 01 Jan. 1998
  

  Permalink
• Magnetic reconnection as the origin of galactic ridge X-ray emission - 20 numerical simulation of reconnection driven by Parker instability and supernova
  Tanuma S; Yokoyama T; Kudoh T; Shibata K; Matsumoto R; Makishima K
  HOT UNIVERSE, (188) 269 - 270, 1998, International conference proceedings
• MHD simulations of jets from accretion disks: Nonsteady jets vs. steady jets
  Kudoh T; Shibata K; Matsumoto R
  CENTRAL REGIONS OF THE GALAXY AND GALAXIES, 361 - 362, 1998, International conference proceedings
• Magnetically driven jets from accretion disks: Nonsteady 2.5d-MHD simulation
  Kudoh T; Matsumoto R; Shibata K
  OBSERVATIONAL PLASMA ASTROPHYSICS: FIVE YEARS OF YOHKOH AND BEYOND, 229 143 - 148, 1998, International conference proceedings
• Disk accretion onto a magnetized young star and associated jet formation
  Shigenobu Hirose; Yutaka Uchida; Kazunari Shibata; Ryoji Matsumoto
  Publications of the Astronomical Society of Japan, 49 193 - 205, Dec. 1997, Scientific journal
  

  Permalink
• Parker instability in nonuniform gravitational fields .3. The effect of a corona
  H Kamaya; T Horiuchi; R Matsumoto; T Hanawa; K Shibata; S Mineshige
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 486(1) 307 - 315, Sep. 1997, Scientific journal
  

  DOI URL
• STATISTICS of FLUCTUATIONS in the SOLAR SOFT X-RAY EMISSION
  S. Ueno; S. Mineshige; H. Negoro; K. Shibata; H.S. Hudson
  Astrophysical Journal Letters, 484(2) 920 - 926, 01 Aug. 1997
  

  DOI URL
• X-ray plasma ejections and jets from solar compact flares observed with the Yohkoh soft X-ray telescope
  M Ohyama; K Shibata; T Yokoyama; M Shimojo
  RECONNECTION IN THE SOLAR CORONA AND MAGNETOSPHERIC SUBSTORMS, PERGAMON PRESS LTD, 19(12) 1849 - 1852, 1997, Scientific journal
• Mass flux and toroidal magnetic field in magnetically driven jets from accretion disks: Steady solutions and application to jet/wind in YSO
  T Kudoh; K Shibata
  ACCRETION PHENOMENA AND RELATED OUTFLOWS, ASTRONOMICAL SOC PACIFIC, 121 751 - 752, 1997, International conference proceedings
• General relativistic simulation of jet formation from magnetized accretion disk
  S Koide; K Shibata; T Kudoh
  ACCRETION PHENOMENA AND RELATED OUTFLOWS, ASTRONOMICAL SOC PACIFIC, 121 667 - 671, 1997, International conference proceedings
• X-ray flares and outflows driven by magnetic interaction between a protostar and its surrounding disk
  M Hayashi; K Shibata; R Matsumoto
  ICPP 96 CONTRIBUTED PAPERS - PROCEEDINGS OF THE 1996 INTERNATIONAL CONFERENCE ON PLASMA PHYSICS, VOLS 1 AND 2, JAPAN SOCIETY PLASMA SCIENCE &NUCLEAR FUSION RESEARCH, 522 - 525, 1997, International conference proceedings
• Three dimensional MHD simulations of Parker instability in differentially rotating disk
  T Matsuzaki; R Matsumoto; T Tajima; K Shibata
  ACCRETION PHENOMENA AND RELATED OUTFLOWS, ASTRONOMICAL SOC PACIFIC, 121 766 - 767, 1997, International conference proceedings
• Three-dimensional global MHD simulations of magnetised accretion disks and jets
  R Matsumoto; K Shibata
  ACCRETION PHENOMENA AND RELATED OUTFLOWS, ASTRONOMICAL SOC PACIFIC, 121 443 - 447, 1997, International conference proceedings
• X-ray flares and outflows driven by magnetic interaction between a protostar and its surrounding disk
  M Hayashi; K Shibata; R Matsumoto
  ACCRETION PHENOMENA AND RELATED OUTFLOWS, ASTRONOMICAL SOC PACIFIC, 121 717 - 718, 1997, International conference proceedings
• Magnetically driven jets from accretion disks. II. Nonsteady solutions and comparison with steady solutions
  Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, 476 632 - 648, 01 Jan. 1997
• Magnetically driven jets from accretion disks. I. Steady solutions and application to jets/winds in young stellar objects
  Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, 474 362 - 377, 01 Jan. 1997
  

  URLDOI URL
• Outflows and jets from magnetized disks
  Matsumoto R; Kudoh T; Shibata K; Hayashi MR
  WILD STARS IN THE OLD WEST, 137 286 - 293, 1997, International conference proceedings
• Magnetically driven jets from accretion disks: Comparison between 2.5D nonsteady simulations and 1.5D nonsteady/steady solutions
  Kudoh T; Matsumoto R; Shibata K
  ACCRETION PHENOMENA AND RELATED OUTFLOWS, 121 753 , 1997, International conference proceedings
• X-ray flares and mass outflows driven by magnetic interaction between a protostar and its surrounding disk
  MR Hayashi; K Shibata; R Matsumoto
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 468(1) L37 - +, Sep. 1996, Scientific journal
  

  DOI URL
• H alpha surges and X-ray jets in AR 7260
  RC Canfield; KP Reardon; KD Leka; K Shibata; T Yokoyama; M Shimojo
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 464(2) 1016 - 1029, Jun. 1996, Scientific journal
• Interstellar mass outflow to galactic halos by the supernova-driven Parker instability
  Kamaya, H; Mineshige, S; Shibata, K; Matsumoto, R
  ASTROPHYSICAL JOURNAL, 458(1) L25-L28 , 10 Feb. 1996
• H alpha surges and X-ray jets in AR7260
  K Shibata; T Yokoyama; M Shimojo
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, KLUWER ACADEMIC PUBL, 49 - 50, 1996, International conference proceedings
• Yohkoh SXT observations of prominence eruption and disappearance
  H Tonooka; R Matsumoto; S Miyaji; SF Martin; RC Canfield; K Reardon; A McAllister; K Shibata
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, KLUWER ACADEMIC PUBL, 493 - 494, 1996, International conference proceedings
• Magnetically driven jets from accretion disks: Nonsteady and steady solutions
  T Kudoh; K Shibata
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, KLUWER ACADEMIC PUBL, 511 - 512, 1996, International conference proceedings
• Formation of a kinked alignment of solar active region
  R Matsumoto; T Tajima; W Chou; K Shibata
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, KLUWER ACADEMIC PUBL, 355 - 356, 1996, International conference proceedings
• 3D MHD simulation of magnetic flux tubes in co-rotating coordinates
  W Chou; T Tajima; R Matsumoto; K Shibata
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, KLUWER ACADEMIC PUBL, 613 - 614, 1996, International conference proceedings
• Magnetically constricted plasmas in clusters of galaxies
  A Valinia; T Tajima; R Matsumoto; K Makishima; K Shibata
  CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE, ASTRONOMICAL SOC PACIFIC, 88 205 - 208, 1996, International conference proceedings
• X-ray and magnetic features of H alpha surges
  A Okubo; R Matsumoto; S Miyaji; M Akioka; H Zhang; M Shimojo; Y Nishino; K Ichimoto; K Shibata; T Sakurai
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, KLUWER ACADEMIC PUBL, 437 - 438, 1996, International conference proceedings
• Formation of reconnection-driven jets with disk accretion onto magnetized young stars
  Hirose S; Uchida Y; Shibata K; Matsumoto R
  MAGNETODYNAMIC PHENOMENA IN THE SOLAR ATMOSPHERE, 509 - 510, 1996, International conference proceedings
• Coordinated OVRO, BATSE, Yohkoh, and BBSO observations of the 1992 June 25 M1.4 flare
  H. Wang; D. E. Gary; H. Zirin; R. A. Schwartz; T. Sakao; T. Kosugi; K. Shibata
  Astrophysical Journal, 453(1) 505 - 510, 01 Nov. 1995, Scientific journal
  

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• Mass flux and terminal velocities of magnetically driven jets from accretion disks
  Takahiro Kudoh; Kazunari Shibata
  Astrophysical Journal, 452, 10 Oct. 1995
  

  URLDOI URL
• DETECTION OF NONTHERMAL RADIO-EMISSION FROM CORONAL X-RAY JETS
  MR KUNDU; JP RAULIN; N NITTA; HS HUDSON; M SHIMOJO; K SHIBATA; A RAOULT
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 447(2) L135 - L137, Jul. 1995, Scientific journal
• MAGNETIC RECONNECTION AS THE ORIGIN OF X-RAY JETS AND H-ALPHA SURGES ON THE SUN
  T YOKOYAMA; K SHIBATA
  NATURE, MACMILLAN MAGAZINES LTD, 375(6526) 42 - 44, May 1995, Scientific journal
  

  DOI URL
• CORONAL X-RAY JETS OBSERVED WITH YOHKOH SXT
  K SHIBATA; T YOKOYAMA; M SHIMOJO
  SOLAR FLARE, CORONAL AND HELIOSPHERIC DYNAMICS, PERGAMON PRESS LTD, 17(4/5) 197 - 200, 1995, Scientific journal
• A GIGANTIC CORONAL JET EJECTED FROM A COMPACT ACTIVE-REGION IN A CORONAL HOLE
  K SHIBATA; N NITTA; KT STRONG; R MATSUMOTO; T YOKOYAMA; T HIRAYAMA; H HUDSON; Y OGAWARA
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 431(1) L51 - &, Aug. 1994, Scientific journal
  

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• 3D-MHD SIMULATIONS OF EMERGING MAGNETIC-FLUX IN THE SOLAR ATMOSPHERE
  M KAISIG; R MATSUMOTO; T TAJIMA; K SHIBATA
  SOLAR MAGNETIC FIELDS, CAMBRIDGE UNIV PRESS, 142 - 142, 1994, International conference proceedings
• COMPUTATIONAL MAGNETOHYDRODYNAMICS OF JETS, LOOPS, AND FLARES IN ASTROPHYSICS
  MATSUMOTO R; SHIBATA K; YOKOYAMA T
  PROCEEDINGS OF THE CORNELIUS LANCZOS INTERNATIONAL CENTENARY CONFERENCE, 443 - 445, 1994, International conference proceedings
• 3-DIMENSIONAL MAGNETOHYDRODYNAMICS OF THE EMERGING MAGNETIC-FLUX IN THE SOLAR ATMOSPHERE
  R MATSUMOTO; T TAJIMA; K SHIBATA; M KAISIG
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 414(1) 357 - 371, Sep. 1993, Scientific journal
  

  DOI URL
• MHD NUMERICAL SIMULATIONS OF MAGNETIC RECONNECTION ASSOCIATED WITH EMERGING FLUX
  K SHIBATA; S NOZAWA; R MATSUMOTO
  MAGNETIC AND VELOCITY FIELDS OF SOLAR ACTIVE REGIONS, ASTRONOMICAL SOC PACIFIC, 46 500 - 503, 1993, International conference proceedings
• OBSERVATIONS OF X-RAY JETS USING YOHKOH SOFT-X-RAY TELESCOPE
  SHIBATA K; ISHIDO Y; ACTON L; STRONG K; HIRAYAMA T; UCHIDA Y; MCALLISTER A; MATSUMOTO R; TSUNETA S; SHIMIZU T; HARA H; SAKURAI T; ICHIMOTO K; NISHINO Y; OGAWARA Y
  MAGNETIC AND VELOCITY FIELDS OF SOLAR ACTIVE REGIONS, 46 343 - 346, 1993, International conference proceedings
• GIANT MOLECULAR CLOUD FORMATION THROUGH THE PARKER INSTABILITY IN A SKEWED MAGNETIC-FIELD
  T HANAWA; R MATSUMOTO; K SHIBATA
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 393(2) L71 - L74, Jul. 1992, Scientific journal
  

  DOI URL
• EMERGENCE OF MAGNETIC-FLUX FROM THE CONVECTION ZONE INTO THE SOLAR ATMOSPHERE .1. LINEAR AND NONLINEAR ADIABATIC EVOLUTION OF THE CONVECTIVE-PARKER INSTABILITY
  S NOZAWA; K SHIBATA; R MATSUMOTO; AC STERLING; T TAJIMA; Y UCHIDA; A FERRARI; R ROSNER
  ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, UNIV CHICAGO PRESS, 78(1) 267 - 282, Jan. 1992, Scientific journal
  

  DOI URL
• Magnetic Loop (Bubble) Phenomena in the Universe.
  Shibata Kazunari
  Butsuri, The Physical Society of Japan, 47(3) 188 - 195, 1992
  

  DOI URL
• FORMATION OF GIANT MOLECULAR CLOUDS AND HELICAL MAGNETIC-FIELDS BY THE PARKER INSTABILITY
  K SHIBATA; R MATSUMOTO
  NATURE, MACMILLAN MAGAZINES LTD, 353(6345) 633 - 635, Oct. 1991, Scientific journal
  

  DOI URL
• NONLINEAR EVOLUTION OF THE PARKER INSTABILITY
  R MATSUMOTO; K SHIBATA
  IAU SYMPOSIA, SPRINGER, (144) 429 - 432, 1991, Scientific journal
• MAGNETIC ACCRETION DISKS FALL INTO 2 TYPES
  K SHIBATA; T TAJIMA; R MATSUMOTO; J FUKUE; R OKADA
  STRUCTURE AND EMISSION PROPERTIES OF ACCRETION DISKS, EDITIONS FRONTIERES, 517 - 518, 1991, International conference proceedings
• FORMATION OF BIPOLAR RADIO JETS AND LOBES FROM ACCRETION DISK AROUND FORMING BLACKHOLE AT THE CENTER OF PROTOGALAXIES
  Y UCHIDA; R MATSUMOTO; S HIROSE; K SHIBATA
  PRIMORDIAL NUCLEOSYNTHESIS AND EVOLUTION OF EARLY UNIVERSE, KLUWER ACADEMIC PUBL, 169 409 - 416, 1991, International conference proceedings
• NONLINEAR EVOLUTION OF THE PARKER INSTABILITY
  R MATSUMOTO; K SHIBATA
  INTERSTELLAR DISK-HALO CONNECTION IN GALAXIES, KLUWER ACADEMIC PUBL, 144 429 - 432, 1991, International conference proceedings
• NONLINEAR EXCITATION OF MAGNETIC UNDULAR INSTABILITY BY CONVECTIVE MOTION
  M KAISIG; T TAJIMA; K SHIBATA; S NOZAWA; R MATSUMOTO
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 358(2) 698 - 709, Aug. 1990, Scientific journal
  

  DOI URL
• NONLINEAR PARKER INSTABILITY IN NONUNIFORM GRAVITATIONAL-FIELDS - NONLINEAR OSCILLATIONS AND SHOCK-WAVES
  R MATSUMOTO; T HORIUCHI; T HANAWA; K SHIBATA
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 356(1) 259 - 271, Jun. 1990, Scientific journal
  

  DOI URL
• MAGNETIC ACCRETION DISKS FALL INTO 2 TYPES
  K SHIBATA; T TAJIMA; R MATSUMOTO
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 350(1) 295 - 299, Feb. 1990, Scientific journal
  

  DOI URL
• Self-similar evolution of the nonlinear magnetic buoyancy instability
  K. Shibata; T. Tajima; R. Matsumoto
  Physics of Fluids B, 2(9) 1989 - 2000, 1990, Scientific journal
  

  URLDOI URL
• MHD MODELS OF GALACTIC-CENTER LOBES, SHELLS, AND FILAMENTS
  K SHIBATA; R MATSUMOTO
  IAU SYMPOSIA, SPRINGER, (140) 379 - 380, 1990, Scientific journal
• MHD MODELS OF GALACTIC-CENTER LOBES, SHELLS, AND FILAMENTS
  K SHIBATA; R MATSUMOTO
  GALACTIC AND INTERGALACTIC MAGNETIC FIELDS, KLUWER ACADEMIC PUBL, 140 379 - 380, 1990, International conference proceedings
• TWO-DIMENSIONAL MAGNETOHYDRODYNAMIC MODEL OF EMERGING MAGNETIC-FLUX IN THE SOLAR ATMOSPHERE
  K SHIBATA; T TAJIMA; RS STEINOLFSON; R MATSUMOTO
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 345(1) 584 - 596, Oct. 1989, Scientific journal
  

  DOI URL
• NONLINEAR PARKER INSTABILITY OF ISOLATED MAGNETIC-FLUX IN A PLASMA
  K SHIBATA; T TAJIMA; R MATSUMOTO; T HORIUCHI; T HANAWA; R ROSNER; Y UCHIDA
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 338(1) 471 - 492, Mar. 1989, Scientific journal
  

  DOI URL
• PARKER INSTABILITY IN NONUNIFORM GRAVITATIONAL-FIELDS .1. LINEAR-STABILITY ANALYSIS
  T HORIUCHI; R MATSUMOTO; T HANAWA; K SHIBATA
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASTRONOMICAL SOC JAPAN, 40(2) 147 - 169, 1988, Scientific journal
  

  URL
• PARKER INSTABILITY IN NONUNIFORM GRAVITATIONAL-FIELDS .2. NONLINEAR TIME EVOLUTION
  R MATSUMOTO; T HORIUCHI; K SHIBATA; T HANAWA
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASTRONOMICAL SOC JAPAN, 40(2) 171 - 195, 1988, Scientific journal
  

  URL
• ROTATING ERUPTION OF AN UNTWISTING FILAMENT TRIGGERED BY THE 3B FLARE OF 25 APRIL, 1984
  H KUROKAWA; Y HANAOKA; K SHIBATA; Y UCHIDA
  SOLAR PHYSICS, KLUWER ACADEMIC PUBL, 108(2) 251 - 264, 1987, Scientific journal
• ORIGIN OF THE GALACTIC-CENTER LOBES
  Y UCHIDA; K SHIBATA; Y SOFUE
  NATURE, MACMILLAN MAGAZINES LTD, 317(6039) 699 - 701, 1985, Scientific journal
  

  DOI URL

MISC

• Starspot mapping and multi-wavelength variability for a young solar-type star
  幾田佳; 行方宏介; 前原裕之; AIRAPETIAN Vladimir; PETIT Pascal; 野津湧太; 柴田一成
  日本天文学会年会講演予稿集, 2024, 2024
• ポストフレアループに注目した2023/8/5 X1.6フレアのSun-as-a-star解析
  大津天斗; 浅井歩; 幾田佳; 柴田一成; 柴田一成
  日本天文学会年会講演予稿集, 2024, 2024
• Thermodynamic properties of small flares in the quiet Sun observed by H$α$ and EUV: plasma motion of the chromosphere and time evolution of temperature/emission measure
  Yuji Kotani; Takako T. Ishii; Daiki Yamasaki; Kenichi Otsuji; Kiyoshi Ichimoto; Ayumi Asai; Kazunari Shibata
  24 Apr. 2023
  

  DOI URL
• データ科学による恒星表面マッピング
  幾田佳; 森万由子; 福井暁彦; 成田憲保; 行方宏介; 前原裕之; 野津湧太; 本田敏志; 野上大作; 柴田一成
  日本天文学会年会講演予稿集, 2023, 2023
• 太陽型星スーパーフレアに伴うフィラメント噴出モデル
  幾田佳; 柴田一成; 柴田一成
  日本天文学会年会講演予稿集, 2022, 2022
• Blue asymmetries in Balmer lines during mid M dwarf flares
  Yuta Notsu; Adam F. Kowalski; Hiroyuki Maehara; Kosuke Namekata; Satoshi Honda; Teruaki Enoto; Kenji Hamaguchi; Isaiah Tristan; Suzanne L. Hawley; James R. A. Davenport; Soshi Okamoto; Kai Ikuta; Daisaku Nogami; Kazunari Shibata
  Zenodo, 23 Jul. 2021
  

  URLDOI URL
• Detection of mass ejection from a superflare on a solar-type star
  Kosuke Namekata; Hiroyuki Maehara; Satoshi Honda; Yuta Notsu; Soshi Okamoto; Jun Takahashi; Masaki Takayama; Tomohito Ohshima; Tomoki Saito; Noriyuki Katoh; Miyako Tozuka; Katsuhiro Murata; Futa Ogawa; Masafumi Niwano; Ryo Adachi; Motoki Oeda; Kazuki Shiraishi; Keisuke Isogai; Takako Ishii; Kiyoshi Ichimoto; Daisaku Nogami; Kazunari Shibata
  Zenodo, 26 Feb. 2021
  

  URLDOI URL
• Starspot mapping with parallel tempering for TESS data of M-type flare stars
  幾田佳; 前原裕之; 野津湧太; 行方宏介; 加藤太一; 岡本壮師; 野津翔太; 本田敏志; 野上大作; 柴田一成
  日本天文学会年会講演予稿集, 2021, 2021
• Starspot mapping with parallel tempering for TESS data of M-type flare stars. II. The variation of light curves in two years
  幾田佳; 前原裕之; 野津湧太; 野津湧太; 行方宏介; 岡本壮師; 本田敏志; 野上大作; 柴田一成
  日本天文学会年会講演予稿集, 2021, 2021
• Statistical Properties of Superflares on Solar-type Stars: Results Using All of the Kepler Primary Mission Data
  Soshi Okamoto; Yuta Notsu; Hiroyuki Maehara; Kosuke Namekata; Satoshi Honda; Kai Ikuta; Daisaku Nogami; Kazunari Shibata
  04 Nov. 2020
  

  DOI URL
• Time-resolved spectroscopy and photometry of an M dwarf flare star YZ Canis Minoris with OISTER and TESS: Blue asymmetry in H$α$ line during the non-white light flare
  Hiroyuki Maehara; Yuta Notsu; Kousuke Namekata; Satoshi Honda; Adam F. Kowalski; Noriyuki Katoh; Tomohito Ohshima; Kota Iida; Motoki Oeda; Katsuhiro L. Murata; Masayuki Yamanaka; Kengo Takagi; Mahito Sasada; Hiroshi Akitaya; Kai Ikuta; Soshi Okamoto; Daisaku Nogami; Kazunari Shibata
  30 Sep. 2020
  

  DOI URL
• Statistical Study of Solar White-light Flares and Comparison with Superflares on Solar-type Stars
  Kosuke Namekata; Takahito Sakaue; Kyoko Watanabe; Ayumi Asai; Hiroyuki Maehara; Yuta Notsu; Shota Notsu; Satoshi Honda; Takako T. Ishii; Kai Ikuta; Daisaku Nogami; Kazunari Shibata
  Proceedings of the International Astronomical Union, Cambridge University Press ({CUP}), 13(S340) 221 - 224, Feb. 2018
  

  DOI URL
• 太陽,恒星フレアのEM-Tスケーリング則の検証
  行方宏介; 坂上峻仁; 渡邉恭子; 浅井歩; 柴田一成
  日本天文学会年会講演予稿集, 2017, 2017
• Comparison of Solar and Stellar White-light Flares
  NAMEKATA Kosuke; SAKAUE Takahito; NOTSU Yuta; NOTSU Shota; IKUTA Kai; WATANABE Kyoko; ASAI Ayumi; MAEHARA Hiroyuki; HONDA Satoshi; NOGAMI Daisaku; SHIBATA Kazunari
  日本地球惑星科学連合大会予稿集(Web), 2017, 2017
• Statistical properties of superflares on solar-type stars with Kepler data
  Yuta Notsu; Hiroyuki Maehara; Takuya Shibayama; Satoshi Honda; Shota Notsu; Kosuke Namekata; Daisaku Nogami; Kazunari Shibata
  31 Jul. 2016
  

  DOI URL
• Spectroscopy of A, F, G, and K type Superflare stars with MALLS
  本田 敏志; 野津 湧太; 野津 翔太; 柴山 拓也; 幾田 佳; 行方 宏介; 鄭 祥子; 猪口 睦子; 前原 裕之; 野上 大作; 柴田 一成
  Bulletin of the Center for Astronomy, University of Hyogo = 兵庫県立大学天文科学センター紀要, 兵庫県立大学自然・環境科学研究所天文科学センター, (4) 1 - 9, 2016
• 太陽の白色光フレアの統計的研究と太陽型星スーパーフレアとの比較
  行方宏介; 坂上峻仁; 野津湧太; 渡邉恭子; 前原裕之; 浅井歩; 柴田一成
  日本天文学会年会講演予稿集, 2016, 2016
• High dispersion spectroscopy of solar-type superflare stars with Subaru/HDS
  Yuta Notsu; Satoshi Honda; Hiroyuki Maehara; Shota Notsu; Takuya Shibayama; Daisaku Nogami; Kazunari Shibata
  28 Oct. 2015
  

  DOI URL
• Can Superflares Occur on Our Sun?
  SHIBATA Kazunari; ISOBE Hiroaki
  ITE Technical Report, The Institute of Image Information and Television Engineers, 39(0) 17 - 18, 2015
• 天文学会初の国際セッション「宇宙天気と宇宙気候」の開催について
  柴田 一成; 浅井 歩
  天文月報, 日本天文学会, 107(3) 180 - 184, Mar. 2014
• Superflare Phenomenon in Stars
  SHIBATA Kazunari
  プラズマ・核融合学会誌, プラズマ・核融合学会, 89(12) 853 - 856, Dec. 2013
• 12pSE-9 Cosmic X-ray Observations and Plasma Dynamics
  Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 67(2) 184 - 184, 24 Aug. 2012
• Recent Progresses of Solar Physics Achieved by Hinode
  SHIBATA Kazunari; ICHIMOTO Kiyoshi; ASAI Ayumi
  日本物理學會誌, The Physical Society of Japan (JPS), 66(12) 896 - 904, 05 Dec. 2011
• Statistical Study on the Nature of Solar-Flux Emergency
  OTSUJI Kenichi; KITAI Reizaburo; ICHIMOTO Kiyoshi; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 63(5) 1047 - 1057, 25 Oct. 2011
• 理系大学生のための「太陽研究最前線体験ツアー」の報告
  永田 伸一; 一本 潔; 上野 悟; 柴田 一成; 草野 完也; 増田 智; 横山 央明; 関井 隆; 原 弘久; 下条 圭美; 柴崎 清登; 清水 敏文
  天文月報, 日本天文学会, 103(7) 472 - 474, 20 Jun. 2010
• Evolution of an Anemone Active Region and the Related Flares/CMEs
  ASAI Ayumi; SHIBATA Kazunari
  The astronomical herald, 日本天文学会, 103(3) 196 - 204, 20 Feb. 2010
• On the Simultaneous Public Lectures throughout Japan Celebrating Tanabata
  SHIBATA Kazunari; MAEHARA Hiroyuki; NISHIDA Keisuke
  The astronomical herald, 日本天文学会, 103(2) 131 - 141, 20 Jan. 2010
• Signatures of Coronal Heating Mechanisms
  P. Antolin; K. Shibata; T. Kudoh; D. Shiota; D. Brooks
  10 Mar. 2009, Technical report
  

  DOI URL
• 27pSA-6 Space Weather Modeling : Coronal Heating and Solar Wind Acceleration
  松本 琢磨; 草野 完也; 井上 諭; 塩田 大幸; 片岡 龍峰; 荻野 瀧樹; 浅野 栄治; 柴田 一成
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 64(1) 200 - 200, 03 Mar. 2009
• 28aSA-3 Relativistic Magnetohydrodynamics Simulations of Magnetar Giant flare
  Matsumoto Jin; Masada Youhei; Asano Eiji; Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 64(1) 214 - 214, 03 Mar. 2009
• 27pSA-5 Space Weather Modeling : The Reconstruction of the Solar Active Region
  Inoue S.; Shiota D.; Kusano K.; Kataoka R.; Aasano E.; Matsumoto T.; Miyoshi T.; Magara T.; Yamamoto T.; Ogino T.; Shibata K.
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 64(1) 199 - 199, 03 Mar. 2009
• 27pSA-1 Astrophysical Magnetohydrodynamic Phenomena
  Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 64(1) 198 - 198, 03 Mar. 2009
• 27pSA-7 Space Weather Modeling : Formation Dynamics of Coronal Mass Ejections
  Shiota Daikou; Kusano Kanya; Miyoshi Takahiro; Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 64(1) 200 - 200, 03 Mar. 2009
• 27pSA-4 Space Weather Modeling : On the Issues and the Predictability
  Kusano K.; Shiota D.; Inoue S.; Kataoka R.; Matsumoto T.; Asano E.; Ogino T.; Shibata K.
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 64(1) 199 - 199, 03 Mar. 2009
• 28pSA-11 Magnetic reconnection in weakly ionized plasma
  Isobe Hiroaki; Krishan Vinod; Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, 一般社団法人日本物理学会, 64(1) 224 - 224, 03 Mar. 2009
• ひので衛星で観測された彩層ジェットと磁気リコネクションモデル
  西塚直人; 柴田一成
  日本物理学会講演概要集, 64(1), 2009
• 2007年飛騨-ひので協同観測より:彩層ジェットの分光学的特性 II-超粒状斑セル内彩層上層でのスパイク状ブライトニング現象-
  上野悟; 森田諭; 西塚直人; 柴田一成; 一本潔; 北井礼三郎; 永田伸一; 磯部洋明; 西田圭佑; 中村太平; 小森裕之; 大辻賢一; 渡邉皓子; 川手朋子; 石井貴子; 松本琢磨; 萩野正興; 神尾精
  日本天文学会年会講演予稿集, 2009, 2009
• 飛騨-ひので共同観測分光データを用いたCaIIアネモネジェットの研究 2:光球面ベクトル磁場成分の発展との相関
  森田諭; 柴田一成; 上野悟; 一本潔; 西塚直人; 北井礼三郎; 永田伸一; 磯部洋明; 中村太平; 石井貴子; 松本琢磨; 西田圭祐; 小森裕之; 大辻賢一; 渡邉皓子; 川手朋子; 萩野正興
  日本天文学会年会講演予稿集, 2009, 2009
• Resistive general relativistic MHD simulations of jet formation around Kerr black hole
  Shinji Koide; Kazunari Shibata; Takahiro Kudoh
  11th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories - Proc. of the MG11 Meeting on General Relativity, 1585 - 1588, 01 Dec. 2008
  

  URLDOI URLScopus Citedby URL
• 24aQE-5 Data-Driven Simulation of Solar Flare Explosion and Coronal Mass Ejection
  Kusano K; Inoue S; Shiota D; Kataoka R; Asano E; Matsumoto T; Shibata K
  Meeting abstracts of the Physical Society of Japan, 社団法人日本物理学会, 63(1) 227 - 227, 29 Feb. 2008
• Hot and Cool Plasmoid Ejections Associated with a Solar Flare
  OHYAMA Masamitsu; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 60(1) 85 - 93, 25 Feb. 2008
• Interlocked Simulations of Solar Terrestrial Environment System
  Kusano Kanya; Shiota Daikou; Inoue Satoshi; Kataoka Ryuho; Sugiyama Tooru; Asano Eiji; Matsumoto Takuma; Miyoshi Takahiro; Shima Shinichiro; Ogino Tatsuki; Shibata Kazunari
  NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan, National Committee for IUTAM, 57(0) 216 - 216, 2008
  

  DOI URL
• Relativistic Magnetohydrodynamic Simulations of Giant Flare from the Magnetar
  MATSUMOTO Jin; MASADA Youhei; ASANO Eiji; SHIBATA Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2008 390 - 390, 2008
• Interlocked MHD modeling of the Sun-Earth System for the Basic Study of Space Weather Prediction 2
  Asano Eiji; Matsumoto Takuma; Shiota Daikou; Inoue Satoshi; Kusano Kanya; Kataoka Ryuho; Ogino Tatsuki; Miyoshi Takahiro; Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2008 383 - 383, 2008
• Solar Magnetohydrodynamic Phenomena observed with Hinode Satellite
  Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2008 381 - 381, 2008
• Interlocked MHD modeling of the Sun-Earth System for the Basic Study of Space Weather Prediction 1
  Shiota Daikou; Kusano Kanya; Inoue Satoshi; Asano Eiji; Matsumoto Takuma; Kataoka Ryuho; Miyoshi Takahiro; Ogino Tatsuki; Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2008 382 - 382, 2008
• 飛騨-ひので共同観測分光データを用いたCaIIアネモネジェットの研究
  森田諭; 柴田一成; 上野悟; 西塚直人; 北井礼三郎; 永田伸一; 中村太平; 石井貴子; 萩野正興; 松本琢磨; 西田圭祐; 小森裕之; 大辻賢一; 渡邉皓子; 川手朋子
  日本天文学会年会講演予稿集, 2008, 2008
• ひので-ドームレス共同観測におけるスピキュールの解析
  川手朋子; 北井礼三郎; 上野悟; 永田伸一; 柴田一成; 西田圭佑; 中村太平; 石井貴子; 萩野正興; 西塚直人; 松本琢磨; 大辻賢一; 渡邉皓子; 小森裕之
  日本天文学会年会講演予稿集, 2008, 2008
• 飛騨-ひので共同観測によるフレアのCaII H線解析
  滝澤寛; 一本潔; 北井礼三郎; 柴田一成; 上野悟; 永田伸一; 石井貴子; 森田諭; 松本琢磨; 西田圭佑; 西塚直人; 小森裕之; 大辻賢一; 渡邉皓子; 川手朋子; 橋本祐樹; 阿南徹; 磯部洋明; 萩野正興
  日本天文学会年会講演予稿集, 2008, 2008
• 2007年飛騨-ひので協同観測より:彩層ジェットの分光学的特性 I
  上野悟; 森田諭; 西塚直人; 柴田一成; 一本潔; 北井礼三郎; 永田伸一; 西田圭佑; 中村太平; 小森裕之; 大辻賢一; 渡邉皓子; 萩野正興; 川手朋子; 石井貴子; 松本琢磨; 神尾精
  日本天文学会年会講演予稿集, 2008, 2008
• 2007年における京大飛騨天文台-ひので共同観測の成果報告
  柴田一成; 一本潔; 北井礼三郎; 上野悟; 永田伸一; 石井貴子; 森田諭; 萩野正興; 小森裕之; 西田圭佑; 松本琢磨; 西塚直人; 中村太平; 滝澤寛; 大辻賢一; 渡邉皓子; 川手朋子; 阿南徹; 橋本祐樹; 磯部洋明; SHINE R. A.; TARBELL T.; 神尾精
  日本天文学会年会講演予稿集, 2008, 2008
• Accretion and Outflow in Astrophysics
  Yoshiaki Kato; Yasushi Suto; Kohji Tomisaka; Takuya Akahori; Hiroyuki Hirashita; Myeong-Gu Park; Dongsu Ryu; Kazunari Shibata; Shin Mineshige; Hitoshi Miura; Nozomu Kawakatsu; Kimitake Hayasaki; Yasuyuki Watabe; Masayuki Umemura
  YITP-W-07-19 APCTP-YITP Joint Workshop on “Accretion and Outflow in Astrophysics” and 2nd Korea-Japan Young Astronomers Meeting (KJYAM), Jan 8 - Jan 11, 2008. Yoshiaki Kato, Yasushi Suto, Kohji Tomisaka, Takuya Akahori, Hiroyuki Hirashita, Myeong-Gu Park,, 2008
• Predicting observational signatures of coronal heating by Alfvn waves and nanoflares
  Patrick Antolin; Kazunari Shibata; Takahiro Kudoh; Daiko Shiota; David Brooks
  Proceedings of the International Astronomical Union, 3 279 - 287, 01 Sep. 2007
  

  URLDOI URL
• 4. 3 Cosmic Jets and Rapidly Rotating Plasma Flows
  KOIDE Shinji; SHIBATA Kazunari
  Journal of plasma and fusion research, The Japan Society of Plasma Science and Nuclear Fusion Research, 83(4) 378 - 386, 25 Apr. 2007
• Oblique Shocks in the Magnetic Reconnection Jet in Solar Flares
  TANUMA Syuniti; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, OXFORD UNIV PRESS, 59(2) L1 - L5, 25 Apr. 2007
  

  DOI URL
• ひのでSOTにより発見されたCaアネモネジェットの統計解析
  中村太平; 西塚直人; 川手朋子; 柴田一成; 大辻賢一; 岡本丈典; 渡邉皓子; 永田伸一; 上野悟; 北井礼三郎; 常田佐久; 末松芳法; 一本潔; 清水敏文; 勝川行雄
  日本天文学会年会講演予稿集, 2007, 2007
• 2007年2月9日のひので衛星巨大Caジェットと浮上磁場モデルによるMHDジェットとの比較
  西塚直人; 中村太平; 大辻賢一; 清水雅樹; 柴田一成; 勝川行雄
  日本天文学会年会講演予稿集, 2007, 2007
• 飛騨天文台におけるHINODE衛星との協同観測の初期報告
  上野悟; 西田圭佑; 中村太平; 石井貴子; 萩野正興; 西塚直人; 柴田一成; 北井礼三郎; 永田伸一; 松本琢磨; 大辻賢一; 渡邉皓子
  日本天文学会年会講演予稿集, 2007, 2007
• A General relativistic MHD simulation of jet formation around a rapidly rotating black hole
  Koide Shinji; Kudoh Takahiro; Shibata Kazunari
  Physics reports of the Kumamoto University, Kumamoto University, 12(2) 259 - 262, 01 Dec. 2006
• AM06-19-002 MHD simulation of solar emerging flux region using the Earth Simulator
  Isobe Hiroaki; Miyagoshi Takehiro; Shibata Kazunari; Yokoyama Takaaki
  Proceedings, ... meeting of Japan Society of Fluid Mechanics, 日本流体力学会, 2006 277 - 277, 05 Sep. 2006
• AM06-19-007 Three-dimensional MHD Code for Global Simulation of the Solar Corona
  Shiota Daikou; Kusano Kanya; Miyoshi Takahiro; Nishikawa Noriaki; Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2006 282 - 282, 2006
• IX-2 Puzzles of Astrophysical Jets and High Speed Spinning Flows
  SHIBATA Kazunari; KOIDE Shinji
  プラズマ・核融合学会年会予稿集, プラズマ・核融合学会, (23) 52 - 52, 2006
• Magnetic-Reconnection and Current-Sheet Model for the Radio Arc and Threads in the Galactic Center
  SOFUE Yoshiaki; KIGURE Hiromitsu; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 57(5) L39 - L43, 25 Oct. 2005
• 3-D GRMHD Simulations of Disk-Jet Coupling and Emission
  K. -I. Nishikawa; Y. Mizuno; S. Fuerst; K. Wu; P. Hardee; G. Richardson; S. Koide; K. Shibata; T. Kudoh; G. J. Fishman
  AIP Conf.Proc.801:184,2005, 801 184 - 187, 21 Sep. 2005, Technical report
  

  DOI URL
• 24aSA-3 Unsolved Problems in Plasma Astrophysics
  Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 60(1) 189 - 189, 04 Mar. 2005
• 25pXA-5 Emerging process of a twisted magnetic flux tube from the photosphere to the corona
  Miyagoshi Takehiro; Isobe Hiroaki; Yokoyama Takaaki; Shibata Kazunari
  Meeting abstracts of the Physical Society of Japan, 一般社団法人日本物理学会, 60(1) 218 - 218, 04 Mar. 2005
• 25pXA-6 Rayleigh-Taylor instability and patchy magnetic reconnection in solar emerging flux region
  Isobe Hiroaki; Miyagoshi Takehiro; Shibata Kazunari; Yokoyama Takaaki
  Meeting abstracts of the Physical Society of Japan, 一般社団法人日本物理学会, 60(1) 218 - 218, 04 Mar. 2005
• [研究トピックス]日欧科学協力事業共同研究:「太陽、恒星および降着円盤における非線形電磁プラズマ活動現象の研究」
  柴田 一成; 宮腰 剛広
  京都大学大学院理学研究科附属天文台年次報告, 京都大学大学院理学研究科附属天文台, 2003 17 - 18, Sep. 2004
• D335 MHD Numerical Simulations of Solar Coronal Jets
  MIYAGOSHI Takehiro; YOKOYAMA Takaaki; ISOBE Hiroaki; SHIBATA Kazunari
  Proceedings, ... meeting of Japan Society of Fluid Mechanics, 日本流体力学会, 2004 610 - 611, 09 Aug. 2004
• Filament oscillations and Moreton waves associated with EIT waves
  Takenori J. Okamoto; Hidekazu Nakai; Atsushi Keiyama; Noriyuki Narukage; Satoru Ueno; Reizaburo Kitai; Hiroki Kurokawa; Kazunari Shibata
  Astrophysical Journal, 608(2 I) 1124 - 1132, 20 Jun. 2004, Book review
  

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• Magnetohydrodynamic accretion flows: Formation of magnetic tower jet and subsequent quasi-steady state
  Y Kato; S Mineshige; K Shibata
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 605(1) 307 - 320, Apr. 2004
  

  DOI URL
• D314 General Relativistic MHD Simulations of Collapsars as a Model of Gamma-Ray Bursts
  MIZUNO Yosuke; YAMADA Shoichi; KOIDE Shinji; SHIBATA Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2004 588 - 589, 2004
• D312 3-D MHD Simulation of Magnetic Buoyancy Instability in Solar Atmosphere
  NOZAWA Satoshi; Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2004 584 - 585, 2004
• D324 Structure and Instability of Protostellar Jets
  UEHARA Kazuhiro; SHIBATA Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2004 598 - 599, 2004
• D315 Formation of Magnetic-Tower Jets in Accretion Disks around Black Holes :
  KATO Yoshiaki; MINESHIGE Shin; SHIBATA Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2004 590 - 591, 2004
• D323 Multiple Shocks in the Magnetic Reconnection Jet in the Solar Flares
  TANUMA Syuniti; SHIBATA Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2004 596 - 597, 2004
• 降着円盤からブラックホールへ向かって準周期的に伝播する衝撃波とQPOへの応用
  青木成一郎; 小出真路; 工藤哲洋; 中山薫二; 柴田一成
  日本天文学会年会講演予稿集, 2004, 2004
• Quasi-periodic inward shock formation from an accretion disk to a black hole and its application to quasi-periodic oscillations in microquasars
  Seiichiro I. Aoki; Shinji Koide; Takahiro Kudoh; Kunji Nakayama; Kazunari Shibata
  Progress of Theoretical Physics Supplement, Progress of Theoretical Physics, 155(155) 307 - 308, 01 Jan. 2004
  

  DOI URL
• A Pioneer of Heliospheric Physics and Cosmical Magnetohydrodynamics : Dr. Eugene N. Parker Wins Kyoto Prize
  Shibata Kazunari
  日本物理學會誌, The Physical Society of Japan (JPS), 58(12) 916 - 917, 05 Dec. 2003
• Hydrodynamic Modeling of a Flare Loop Connecting the Accretion Disk and Central Core of Young Stellar Objects
  ISOBE Hiroaki; SHIBATA Kazunari; YOKOYAMA Takaaki; IMANISHI Kensuke
  Publications of the Astronomical Society of Japan, ASTRONOMICAL SOCIETY OF JAPAN, 55(5) 967 - 980, 25 Oct. 2003
• Black Hole : Extraction of Rotational Energy by a Magnetic Field and Relativistic Jet Formation
  Koide Shinji; Shibata Kazunari; Kudoh Takahiro
  日本物理学会誌, The Physical Society of Japan (JPS), 58(10) 743 - 752, 2003
• 3D structure of a magnetic reconnection jet: Application to looptop hard X-ray emission
  S Tanuma; T Yokoyama; T Kudoh; K Shibata
  MULTI-WAVELENGTH OBSERVATIONS OF CORONAL STRUCTURE AND DYNAMICS, PERGAMON-ELSEVIER SCIENCE LTD, 13 177 - 178, 2002
  

  DOI URL
• 3-D general relativistic MHD simulations of generating jets
  KI Nishikawa; S Koide; K Shibata; T Kudoh; H Sol
  PARTICLES AND FIELDS IN RADIO GALAXIES, ASTRONOMICAL SOC PACIFIC, 250 22 - 26, 2002
• The Relation between Mixture CMEs and Interplanetary Disturbance : Verification by the MHD Simulation
  Mizuno Yosuke; Akiyama Sachiko; Takeuchi Tomohiko; Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2002 134 - 135, 2002
• Simulation of Emerging Magnetic Flux in Solar Atmosphere
  NOZAWA Satoshi; Shibata Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2002 132 - 133, 2002
• CMEに見られたlog-normal分布とγ線バーストのlog-normal分布との比較
  青木成一郎; 八代誠司; 柴田一成
  日本天文学会年会講演予稿集, 2002, 2002
• Magnetic Reconnection in Solar and Astrophysical Plasmas
  SHIBATA Kazunari
  Journal of plasma and fusion research, プラズマ・核融合学会, 77(10) 955 - 964, 25 Oct. 2001
• Computer Simulations of Magnetic Reconnection
  HOSHINO Masahiro; SHIBATA Kazunari
  Journal of plasma and fusion research, プラズマ・核融合学会, 77(10) 981 - 987, 25 Oct. 2001
• Magnetically driven jets from accretion disks : long-term nonsteady numerical simulations and comparison with steady theory(GRB & AGN,Prospects of High Energy Astrophysics)
  Kudoh Takahiro; Matsumoto Ryoji; Shibata Kazunari
  Soryushiron Kenkyu, 素粒子論グループ 素粒子研究編集部, 103(2) B10 , 20 May 2001
  

  DOI URL
• MHD Numerical Simulation of Astrophysical Jets
  KUDOH Takahiro; MATSUMOTO Ryoji; SHIBATA Kazunari
  日本流体力学会年会講演論文集, 日本流体力学会, 2001 99 - 100, 2001
• ブラックホールへの降着流中に生成する内向きに伝播する衝撃波
  青木成一郎; 小出真路; 工藤哲洋; 柴田一成
  日本天文学会年会講演予稿集, 2001, 2001
• ブラックホールへの降着流中における衝撃波形成のシミュレーション
  青木成一郎; 小出真路; 工藤哲洋; 柴田一成
  日本天文学会年会講演予稿集, 2001, 2001
• Two-Dimensional MHD Numerical Simulations of Magnetic Reconnection Triggered by A Supernova Shock in Interstellar Medium, Generation of X-Ray Gas in Galaxy
  Syuniti Tanuma; Takaaki Yokoyama; Takahiro Kudoh; Kazunari Shibata
  06 Sep. 2000, Technical report
  

  DOI URL
• Physics of Cosmic Jets
  SHIBATA Kazunari
  プラズマ・核融合学会誌 = Journal of plasma and fusion research, プラズマ・核融合学会, 76(7) 631 - 632, 25 Jul. 2000
• Soft X-ray flares and magnetic configuration in a solar active region in February 1992
  HQ Zhang; T Sakurai; K Shibata; M Shimojo; H Kurokawa
  ASTRONOMY & ASTROPHYSICS, EDP SCIENCES S A, 357(2) 725 - 734, May 2000
• 2D numerical MHD simulation of magnetic reconnection as the origin of interstellar hot plasma
  S Tanuma; T Yokoyama; T Kudoh; K Shibata
  BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, PERGAMON PRESS LTD, 25(3-4) 509 - 512, 2000
  

  DOI URL
• Magnetic reconnection model of X-ray plasmas in the Galactic center
  T Yokoyama; S Tanuma; T Kudoh; K Shibata
  BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, PERGAMON PRESS LTD, 25(3-4) 505 - 508, 2000
  

  DOI URL
• Temporal 1/f^α fluctuations from fractal magnetic fields in black-hole accretion flow
  Toshihiro Kawaguchi; Shin Mineshige; Mami Machida; Ryoji Matsumoto; Kazunari Shibata
  Publications of the Astronomical Society of Japan, 52, 01 Jan. 2000
  

  URLDOI URL
• Computational magnetohydrodynamics of turbulence, dynamos, and jet formation in differentially rotating astrophysical disks
  Ryoji Matsumoto; Mami Machida; Mitsuru Hayashi; Kazunari Shibata
  Progress of Theoretical Physics Supplement, Progress of Theoretical Physics, (138) 632 - 637, 01 Jan. 2000
  

  DOI URL
• Are blazar jets magnetically driven outflows?
  T. Kudoh; S. Aoki; S. Koide; K. Shibata
  Astronomische Nachrichten, 320 311 , 01 Dec. 1999
  

  Permalink
• Magnetically driven jets from accretion disks. III. 2.5-dimensional nonsteady simulations for thick disk case (vol 508, pg 186, 1998)
  T Kudoh; R Matsumoto; K Shibata
  ASTROPHYSICAL JOURNAL, UNIV CHICAGO PRESS, 521(2) 934 - 934, Aug. 1999, Others
• 宇宙ジェットのコリメーション(天文学の境界領域を探る,研究会報告)
  工藤 哲洋; 松元 亮治; 柴田 一成
  素粒子論研究, 素粒子論グループ 素粒子研究編集部, 99(2) B112 , 20 May 1999
• 時期的質量降着率と質量放出率の磁気拡散係数依存性(天文学の境界領域を探る,研究会報告)
  桑原 匠史; 柴田 一成; 松元 亮治
  素粒子論研究, 素粒子論グループ 素粒子研究編集部, 99(2) B113 , 20 May 1999
• Dynamics of Local Isolated Magnetic Flux Tubes in a Rapidly Rotating Stellar Atmosphere
  CHOU Wenchien; TAJIMA Toshiki; MATSUMOTO Ryoji; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 51(1) 103 - 113, 25 Feb. 1999
• Numerical simulations of magnetic reconnection triggered by a supernova
  S Tanuma; T Yokoyama; T Kudoh; K Shibata
  ASTRONOMISCHE NACHRICHTEN, WILEY-V C H VERLAG GMBH, 320(4-5) 341 - 341, 1999
  

  URL
• ブラックホール近傍の降着円盤から噴出するジェットの一般相対論的MHD数値シミュレーション 幾何学的に厚い降着円盤の場合
  青木成一郎; 小出真路; 柴田一成; 工藤哲洋
  日本天文学会年会講演予稿集, 1999, 1999
• MHD Plasmas
  SHIBATA Kazunari
  Journal of plasma and fusion research, プラズマ・核融合学会, 74(11) 1298 - 1304, 25 Nov. 1998
• Magnetic reconnection phenomena in astrophysical plasma
  SHIBATA Kazunari
  Meeting abstracts of the Physical Society of Japan, The Physical Society of Japan (JPS), 53(2) 947 - 947, 05 Sep. 1998
• Is the jet from Blazar the magnetic fluid accelerating jet?
  工藤哲洋; 青木成一郎; 小出真路; 柴田一成
  日本天文学会年会講演予稿集, 1998, 1998
• Numerical Simulation of Magnetically Driven Jets from Accretion Disks
  KUDOH Takahiro; SHIBATA Kazunari; MATSUMOTO Ryoji
  年会一般講演, 16 355 - 356, Jul. 1997
• Nonlinear Evolution of Magnetohydrodynamic Instabilities in Shear Rotating Plasma Disks
  MATSUMOTO Ryoji; MATSUZAKI Takaaki; SHIBATA Kazunari; TAJIMA Toshiki
  年会一般講演, 16 381 - 382, Jul. 1997
• Linear and Nonlinear Evolution of the Parker Instability of Magnetic-Flux Sheets in Co-Rotating Coordinates
  CHOU Wenchien; TAJIMA Toshiki; MATSUMOTO Ryoji; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 49(3) 389 - 404, 25 Jun. 1997
• Preflare Heating and Mass Motion in a Solar Flare Associated with Hot Plasma Ejection : 1993 November 11 C9.7 Flare
  OHYAMA Masamitsu; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 49(2) 249 - 261, 25 Apr. 1997
• MHD Numerical Experiments of Flares and Magnetic Reconnection.
  林満; 柴田一成; 松元亮治
  統計数理研究所共同研究リポート, (105) 87 - 96, Feb. 1997
  

  URL
• Propagation of nonlinear Alfven wavesin the solar atmosphere: Production of spicules and coronal heating
  T Kudoh; K Shibata
  CORONA AND SOLAR WIND NEAR MINIMUM ACTIVITY - FIFTH SOHO WORKSHOP, EUROPEAN SPACE AGENCY, 404 477 - 480, 1997
  

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• 磁気降着円盤の3次元MHDシミュレーション(宇宙の階層構造,研究会報告)
  松崎 考視; 松元 亮治; 田島 俊樹; 柴田 一成
  素粒子論研究, 素粒子論グループ 素粒子研究編集部, 93(3) C110 , 20 Jun. 1996
• 2.5D MHD Simulation of Magnetic Reconnection for Surge and X-ray Phenomena
  大久保 あかね; 松元 亮治; 宮路 茂樹; 横山 央明; 柴田 一成
  Soryushiron Kenkyu, Soryushiron Kenkyu, 93(3) C116 , 20 Jun. 1996
• ジェット形成の3次元MHDシミュレーション(宇宙の階層構造,研究会報告)
  松元 亮治; 柴田 一成
  素粒子論研究, 素粒子論グループ 素粒子研究編集部, 93(3) C133 , 20 Jun. 1996
• Statistical Study of Solar X-Ray Jets Observed with the Yohkoh Soft X-Ray Telescope
  SHIMOJO Masumi; HASHIMOTO Shizuyo; SHIBATA Kazunari; HIRAYAMA Tadashi; HUDSON Hugh S.; ACTON Loren W.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 48(1) 123 - 136, 25 Feb. 1996
• Challenge to the Riddle of Solar Flares To what extent did Yohkoh resolve solar flares?
  SHIBATA Kazunari
  The Astronomical herald, 日本天文学会, 89(2) 60 - 69, Feb. 1996
• Magnetically driven jets from accretion disks: Nonsteady and steady solutions
  T Kudoh; K Shibata
  ASTROPHYSICAL LETTERS & COMMUNICATIONS, GORDON BREACH SCI PUBL LTD, 34(1-6) 339 - 344, 1996
  

  URL
• Coronal X-Ray Jets Observed with the Yohkoh Soft X-Ray Telescope
  SHIBATA Kazunari; YOKOYAMA Takaaki; SHIMOJO Masumi
  Journal of geomagnetism and geoelectricity, 48(1) 19 - 28, Jan. 1996
• Numerical Simulation of Solar Coronal X-Ray Jets Based on the Magnetic Reconnection Model
  YOKOYAMA Takaaki; SHIBATA Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 48(2) 353 - 376, 1996
• Unsteady magnetofluid jet from the accretion disks.( Ministry of Education S ).
  工藤哲洋; 松元亮治; 柴田一成
  超高エネルギー天体物理理論研究会集録 平成8年, 20 - 24, 1996
  

  URL
• Hard X-Ray Sources and the Primary Energy-Release Site in Solar Flares
  MASUDA Satoshi; KOSUGI Takeo; HARA Hirohisa; SAKAO Taro; SHIBATA Kazunari; TSUNETA Saku
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 47(5) 677 - 689, 25 Oct. 1995
• Complete Upwind Differenciation of the MHD equations.
  釜谷秀幸; 嶺重慎; 柴田一成; 松元亮治
  磁場を伴う流れと構造, (1) 151 - 154, 01 Mar. 1995
  

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• Hot-Plasma Ejections Associated with Compact-Loop Solar Flares
  SHIBATA K.
  Astrophys. J., 451 L83 - L85, 1995
• 「ようこう」と太陽物理の将来(ようこう,理論天文学の新展開-大型観測計画とともに,研究会報告)
  柴田 一成
  素粒子論研究, 素粒子論グループ 素粒子研究編集部, 89(2) B72 - B79, 20 May 1994
• 31p-ZC-1 Magnetic Loop Phenomena in the Universe : New Observations from YOHKOH
  SHIBATA Kazunari
  Abstracts of the meeting of the Physical Society of Japan. Annual meeting, The Physical Society of Japan (JPS), 48(4) 192 - 193, 16 Mar. 1993
• Observations of X-Ray Jets with the Yohkoh Soft X-Ray Telescope (Initial Results from Yohkoh)
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 44(5) Lp173 - 179, Nov. 1992
• Magnetic Reconnection Associated with Emerging Magnetic Flux
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 44(3) p265 - 272, Jul. 1992
• Three-Dimensional MHD Simulation of the Parker Instability in Galactic Gas Disks and the Solar Atmosphere
  MATSUMOTO R.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 44(3) p167 - 175, Jul. 1992
• NUMERICAL SIMULATIONS OF MICROFLARE EVOLUTION IN THE SOLAR TRANSITION REGION AND CORONA
  AC STERLING; JT MARISKA; K SHIBATA; Y SUEMATSU
  ASTROPHYSICAL JOURNAL, IOP PUBLISHING LTD, 381(1) 313 - 322, Nov. 1991
  

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• 非線形磁気浮力不安定の自己相似的時間発展(爆発的天体現象における流体力学的不安定性,研究会報告)
  柴田 一成; 田島 俊樹; 松元 亮治
  素粒子論研究, 素粒子論グループ 素粒子研究編集部, 82(1) A96 - A98, 20 Oct. 1990
• Magnetohydrodynamical simulations in astrophysics. Jets, loops, and flares.
  内田豊; 柴田一成; 松元亮治
  天文月報, 日本天文学会, 83(6) 181 - 184, Jun. 1990
• Interaction of Molecular Bipolar Flows with Interstellar Condensations--Sweeping Magnetic Twist Mechanism and the Blobs in Lynds 1551 Molecular Flow
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 42(1) p39 - 67, Mar. 1990
• Emergence of solar magnetic flux form the convection zone into the photosphere and chromosphere
  SHIBATA K.
  Astrophys. J., 351 L25 - L28, 1990
• 30p-TD-5 Self-similar Evolution of Nonlinear Magnetic Buoyancy Instability
  Shibata K.; Tajima T.; Matsumoto R.
  年会講演予稿集, The Physical Society of Japan (JPS), 44(4) 178 - 178, 28 Mar. 1989
• STRUCTURE OF MAGNETIZED ACCRETION DISKS AND ORIGIN OF ASTROPHYSICAL JETS
  T HANAWA; H KAMAHORI; T MARUYAMA; K SHIBATA
  PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, ASTRONOMICAL SOC JAPAN, 40(6) 729 - 750, 1988
• A Magnetodynamical Model for the Galactic Center Lobes
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 39(4) p559 - 571, Sep. 1987
• A Magnetodynamic Mechanism for the Formation of Astrophysical Jets.-2-Dynamical Processes in the Accretion of Magnetized Mass in Rotation
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 38(5) p631 - 660, Oct. 1986
• Magnetodynamical Acceleration of CO and Optical Bipolar Flows from the Region of Star Formation
  UCHIDA Y.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 37(3) p515 - 535, Oct. 1985
• 宇宙ジェットの磁気流体加速機構--恒星形成域双極流への応用
  柴田 一成; 内田 豊
  天文月報, 日本天文学会, 78(9) p240 - 247, Aug. 1985
• A Magnetodynamic Mechanism for the Formation of Astrophysical Jets-1-Dynamical Effects of the Relaxation of Nonlinear Magnetic Twists
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 37(1) p31 - 46, Mar. 1985
• Magnetically Buffered Accretion to a Young Star and the Formation of Bipolar Flows
  Uchida Yutaka; Shibata Kazunari
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 36(1) p105 - 118, 1984
• Nonlinear MHD Wave Propagation in the Solar Chromosphere-1-The Case of a Uniform Vertical Magnetic Field
  SHIBATA K.
  Publications of the Astronomical Society of Japan, Astronomical Society of Japan, 35(2) p263 - 284, 1983
• NUMERICAL HYDRODYNAMICS OF THE JET PHENOMENA IN THE SOLAR ATMOSPHERE .1. SPICULES
  Y SUEMATSU; K SHIBATA; T NISHIKAWA; R KITAI
  SOLAR PHYSICS, KLUWER ACADEMIC PUBL, 75(1-2) 99 - 118, 1982
  

  DOI URL
• NUMERICAL HYDRODYNAMICS OF THE JET PHENOMENA IN THE SOLAR ATMOSPHERE .2. SURGES
  K SHIBATA; T NISHIKAWA; R KITAI; Y SUEMATSU
  SOLAR PHYSICS, KLUWER ACADEMIC PUBL, 77(1-2) 121 - 151, 1982
  

  DOI URL
• WHY ARE SPICULES ABSENT OVER PLAGES AND LONG UNDER CORONAL HOLES
  K SHIBATA; Y SUEMATSU
  SOLAR PHYSICS, KLUWER ACADEMIC PUBL, 78(2) 333 - 345, 1982
  

  DOI URL

Books etc

• 宇宙電磁流体力学の基礎
  柴田一成; 横山央明; 工藤哲洋
  日本評論社, Mar. 2023, Joint work
• Plasma Astrophysics
  柴田 一成
  Addison Wesley,/,494, 1997, Scholarly book

Works

• 宇宙シミュレーション・ネットラボラトリーシステムの開発
  2000 -2002
• 太陽コロナと地球磁気圏における磁気リコネクション
  2000 -2001
• 宇宙天気予報の基礎としての太陽面爆発予報用ソフトの開発
  2001

Research Projects

• 水月湖年縞堆積物による過去の太陽スーパーフレアの研究
  三宅 芙沙; 中川 毅; 林田 明; 柴田 一成
  日本学術振興会, 科学研究費助成事業, 2023/06 -2025/03, 挑戦的研究(萌芽), 名古屋大学
• The-Sun-as-a-star study of solar flares for understanding of stellar superflares
  柴田 一成; 野上 大作; 本田 敏志; 前原 裕之; 浅井 歩; 一本 潔
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2021/04 -2024/03, Grant-in-Aid for Scientific Research (B), Doshisha University
• Solving the Mechanism of Magnetic Activity of Supeflare Stars based on the Analysis of White Light Solar Flares
  SHIBATA Kazunari
  Using the solar white light flare data taken with Hida Observatory SMART telescope and SDO satellite, it was found that the relationship (scaling law) between flare energy and duration for solar flares holds also for superflares on solar type stars. It was also found that magnetic field strength of solar type stars can be estimated from the scaling law between the Sun and solar type stars. We analyzed the time evolution of the large starspots of solar type superflare stars, by tracing the local minima of the light curves of the stars observed by Kepler space telescope. As a result, it was found that emergence and decay rates of star spots are mostly consistent with those expected from sunspots. We have performed spectroscopic observations of superflares of an M-type star, EV Lac, using the 2m Nayuta telescope at the Nishi-Harima Astronomical Observatory, and found the blue asymmetry of the H alpha line during superflares., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2016/04 -2019/03, Grant-in-Aid for Scientific Research (B), Kyoto University
• Survey of active solar-type stars with the wide-filed photometric observations and archival data
  Maehara Hiroyuki; Shibata Kazunari; Nogami Daisaku; Honda Satoshi
  Previous studies by using the data from Kepler suggest that a part of solar-type stars with the rotation period comparable to the Sun (~25 days) show much higher magnetic activity (e.g., superflares). We studied the rotation period distribution of the solar-type stars with high X-ray luminosity from grand-based photometric and spectroscopic observations. We found that some of active solar-type stars have the rotation velocity of < 5 km/s. We also studied the statistical properties of superflares on active solar-type stars by using the Kepler 1-min cadence data. We found a clear correlation between the duration of flares and the energy released by flares. This correlation can be explained if we assume that flares are caused by the magnetic reconnection., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2014/04 -2017/03, Grant-in-Aid for Young Scientists (B), National Astronomical Observatory of Japan
• Solar White Light Flares and Superflares on Solar-type Stars
  Shibata Kazunari; ICHIMOTO Kiyoshi; NOGAMI Daisaku; HONDA Satoshi; MAEHARA Hiroyuki; UENO Satoru; NAGATA Shinichi; ISOBE Hiroaki; ASAI Ayumi; ISHII Takako
  It has now become clear that the solar flares (explosions in the solar atmosphere) and related solar activity affect an environment of the Earth and often cause various disasters in our civilization. Hence, the forecasting of the space weather is an urgent issue for modern civilizations. In this study, we focus on extreme space weather events, such as solar white light flares (the most energetic solar flares) and superflares of solar type stars with energy of 100 - 10000 times more energetic than the largest solar flares, and studied the mechanism of the energy release in superflares, using observations of both solar white light flares and stellar superflares as well as magnetohydrodynamic numerical simulations., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2013/04 -2016/03, Grant-in-Aid for Scientific Research (B), Kyoto University
• Research of solar active phenomena by mean of a new plasma diagnosis with spectro-polarimetory
  ICHIMOTO Kiyoshi
  A new spectro-polarimeter was developed on the Domeless Solar Telescope at Hida observatory of Kyoto University aiming for realise new diagnosis of physical quantities such as magnetic field and electric fields of dynamic solar plasma. Chromospheric mass ejection phenomena (jets) occured on the solar limb were observed in spectral lines of Paschen series of neutral hydrogen and it was demonstrated that the magnetic field is aligned with the jets and neutral hydrogen is highly frozen to the magnetic field for the first time., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2010/04 -2014/03, Grant-in-Aid for Scientific Research (A), Kyoto University
• Study of solar jets by 2-D high spatial resolution spectroscopic observations
  KITAI Reizaburo; ICHIMOTO Kiyoshi; SHIBATA Kazunari; MIURA Noriaki; UENO Satoru; NAGATA Shin'ichi
  Violent explosive events are often observed on the solar surface. Recent progress of solar observational facilities, such as Japanese satellite HINODE, permits us to investigate the fine structure and dynamics of explosive events. The characteristics of solar events are rapid heating of solar plasma and ejection of high speed gas. Main target of our present study is to observationally clarify the mechanism of the explosive events such as Ellerman bombs, spicules and emerging magnetic field. We are successful to pin-point the physical mechanism of explosion as the magnetic reconnection in the chromosphere., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2011 -2013, Grant-in-Aid for Scientific Research (C)
• Observational study of the origin and acceleration mechanism of the solar win
  KITAI Reizaburo; NISHIKAWA Takara; SHIBATA Kazanari; NAGATA Shin'ichi; UENO Satoru
  Driving mechanisms of solar jet phenomena such as Ellerman bomb, spicules and surges are clarified by the analysis of the cooperative observation between the satellite HINODE and the ground-based solar telescopes at Hida Observatory, Kyoto University. Besides, we have got the detailed observational results on the behavior of emerging flux regions and the fine structure of sunspot umbrae., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2007 -2009, Grant-in-Aid for Scientific Research (C), Kyoto University
• Study on magnetic reconnection driven by electromagnetic energy
  TANAKA Hitoshi; MAEKAWA Takashi; UCHIDA Masaki; SHIBATA Kazunari; NISHINO Nobuhiro; NISHI Seiji
  Magnetic reconnection is one of dynamic plasma phenomena appear in such as solar flare, terestrial magnetosphere and tokamak plasmas. We have investigated and clarified the fast process of topology change by magnetic analysis, fast CCD camera and soft X-ray CT, when a microwave energy pulse is injected into the helical field lines in the LATE device, a plasma is produced by electron cyclotron resonance and a toroidal current is generated spontaneously and increases resulting in formation of closed flux surfaces., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2007 -2009, Grant-in-Aid for Scientific Research (B), Kyoto University
• Basic Study of Space Weather Prediction
  SHIBATA Kazunari; SEKII Takashi; KUSANO Kanya; FUJIKI Kenichi; OGINO Tatuki; HOSHINO Masahiro; SHINOHARA Iku; UGAI Masayuki; KATOU Seiichi; OHMURA YOshiharu; MURATA Takeshi; FUJIMOTO Masaki; TSUNETA Saku; OBARA Takahiro
  Space weather prediction is an urgent issue for modern civilization. Basic study of space weather prediction has been carried out, by developing the numerical multi-scale coupling model for the system from the Sun to the Earth on the basis of the new observations. This study was pushed as a part of CAWSES (Climate And Weather of the Sun-Earth system) program for 5 years, to encourage active communication and collaboration between solar physicists and geophysicists both in Japan and international communities., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Creative Scientific Research, 2005 -2009, Principal investigator, Grant-in-Aid for Creative Scientific Research, Kyoto University
• 電磁流体力学による太陽活動の統合シミュレーション
  柴田 一成; 横山 央明; 永田 伸一; 田沼 俊一; 宮腰 剛弘
  本研究は、近未来の「宇宙天気予報」の基礎を築くという観点から、太陽内部における磁束浮上からフレア・コロナ質量放出、惑星間衝撃波まで含む太陽活動統合コードの開発を目的としている。 平成16年度は、3年計画の初年度として、各階層の物理の解明と数値モデリングに関する研究を推進し、以下のような成果を得た。 (1)浮上磁場における磁気的レイリーテイラー不安定性によるフィラメント構造の発生、および、それに伴う磁気リコネクション(Isobe et al.(2005)Nature,434、478):地球シミュレータを用いて、浮上磁場の史上最高の解像度の3次元電磁流体数値シミュレーションを行い、浮上磁場が自発的に筋状(フィラメント状)の構造を作ることを発見した。筋状構造は、浮上磁場の上部に形成された高密度層(上部が高密、下部が低密となる密度の逆転層)における磁気的レイリーテイラー不安定性が原因で発生する。また、これにともなって微細な電流シートが形成され、間欠的なリコネクションやフィラメント状のジェット噴出などが起こることもわかった。以上は、観測されている浮上磁場の筋状構造や微細フレアによる突発的なコロナ加熱を良く説明する。この成果はNatureに掲載され、新聞などのメディアでも広く報道された。 (2)フレア、コロナ質量放出、および、付随する電磁流体衝撃波の数値モデリングとEIT波への応用(Chen et al.(2004),ApJ,622,1202):フレア、コロナ質量放出の数値モデリング研究の副産物として、近年、極紫外線望遠鏡(EIT)観測で発見され、その正体が謎であったEIT波の数値モデルを作るのに成功した。 (3)コードの検証に必要となる、リコネクション厳密解の安定性解析(Hiroseら)、フレア観測データ解析(SakajiriらTakasakiら,Asaiら)などにおいても成果を得た。, 日本学術振興会, 科学研究費助成事業, 2004 -2006, 基盤研究(B), 京都大学
• Experinuital Study of Large-Scale Emu Release by Transient and Intermittent Magnetic Reconnection
  ONO Yasushi; SHIBATA Kazunari; HOSHINO Masahiro; HORIUCHI Ritoku; ITAGAKI Tshifumi; KAWAMORI Eiichiro
  The large-scale energy release of transient and intermittent magnetic reconnection has been studied in the TS-3/4 device using two merging plasma toroids with arbitrary colliding speeds. Two plasma toroids with major radii R^-0.2m (TS-3) were collided and merged together in the axial direction by the help of compression force provided by external acceleration coils. The magnetic reconnection transformed the magnetic energy of reconnecting magnetic field first through the outflow energy finally to the thermal energy, increasing the plasma beta up to 30-50%, A new finding is that the transient effect of magnetic reconnection causes the fast merging speed as well as the high-power heating, even if effective resistivity of the current sheet is as low as classical. Their heating energy increases significantly with their reconnection speed, because the heating is cased by the reconnection outflow. The plasma colliding (inflow) speed was varied from zero to 30% of the Alfven speed V_A using compression coil/ PF coil currents. When the inflow speed was slower than 0.05 V_A, the plasma inflow flux balanced with the outflow flux, indicating the quasi-steady reconnection (dB/dt^- dn/dt^-0) like the MRX experiment. When the inflow speed exceeded 0.1-0.2V_A, the inflow flux exceeded the outflow flux in the early reconnection phase, causing clear pileup of plasma and magnetic flux in the current sheet. When the inflow speed was increased over 0.2V_A, two types of fast reconnection mechanisms were observed to appear in the late reconnection phase. When the gyro-radius p_i was relatively large, the fast inflow compressed the sheet width δ shorter than p_i, causing the anomalous increase in the effective current sheet resistivity and the reconnection speed. A question is how the inflow speed increases if the fast inflow over-compresses the current sheet whose effective resistivity η is as low as the classical one η_. When the condition : δ>>p_i maintained η^-η_, the inflow flux was observed to pileup around the current sheet, causing the rapid growth and peaking of the current sheet. When the flux pileup exceeded the critical limit, the sheet was ejected mechanically from the squeezed X-point area. The reconnection speed was relatively slow during the flux-pileup and became drastically fast during the ejection, in agreement with the solar corona observations. The sheet ejection was found to occur twice or three times. if we increases the initial reconnecting flux sufficiently large. These facts indicate that the plasma inflow fluxes larger than the plasma outflow fluxes transformed the quasi-steady reconnection though the transient one, finally to the intermittent one under the low resistivity condition (p_i<<δ). It is concluded that the growth and ejection of current sheet both increase plasma inflow (reconnection speed) due to its mass accumulation and ejection, respectively. Based on these results, the transient shaping effect of current sheet is concluded to makes the reconnection (and outflow) faster, even if the sheet resistivity stays as low as the classical one., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2002 -2004, Grant-in-Aid for Scientific Research (B), The University of Tokyo
• Research of Twisted Structures in Emerging Flux to be Source of Solar Plasma Eruptions
  KUROKAWA Hiroki; SHIBATA Kazunari; KITAI Reizaburou; UENO Satoru
  To guarantee human beings to work safely and effectively in the space, the forecast for strong solar flares is indispensable. And the study of the build-up and release mechanism of the magnetic field energy, which is the source of flares and solar plasm ejections, is essentially needed. To study the build-up and release mechanism of he magnetic field energy we need to measure the variations of the three dimensional structures of solar magnetic field over the full solar disk. The primary purpose of this research project is the construction of a good full-solar-disk vector magnetograph. We succeeded to construct the new Solar Magnetic Activity Research Telescope (SMART) at Hida Observatory, Graduate School of Science, Kyoto University form 2002 through 2003. In 2004, we made many test observation to examine the performance of the SMART and made many fine adjustment to optimize the power of the telescope. From these observation with SMART, we got the following results : (1)We confirmed the SMART achieves the best spatial resolution in the world in the full disk Halpha solar image. The better spatial resolution than 1 arc second is obtained over the full solar disk with the SMART. (2)We first succeeded to obtain the full disk solar vector magnetic field image with the SMART. (3)We succeeded in keeping the temperature inside of the telescope tubes to be in the range from 30 degrees to 20 degrees throughout a year in the atomospheric temperature variation from -17degrees (in winter) to 30 degrees (in summer) to stabilize the many kinds of optical elements in their best condition. We also succeeded in getting many new findings in the studies of mechanism of solar flare and solar plasm ejections called as Halpha surge by using the Hida Domeless Solar Telescope and Satellite instruments such as TRACE and SOHO, and we published these results in many papers which are summarized in a report book., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2002 -2004, Grant-in-Aid for Scientific Research (B), Kyoto University
• Numerical Simulations of Relativistic Jet Formation in Kerr Black Hole Magnetosphere
  KOIDE Shinji; SHIBATA Kazunari
  Relativistic jets from several kinds of objects in the universe have been found. It is believed that they are all formed by violent phenomena near the black holes. Among the proposed mechanisms, the magnetic mechanism of the jet formation is becaming most promising because it may explain not only the acceleration but also the collimation of the jets. However, the distinct mechanism has not yet been shown. To investigate the magnetic mechanism, we have developed the general relativistic magnetchydrodynamic (GRMHD) simulation code. First year of this research project, we have performed the GRMHD simulation of the rather simple system consisting of the Kerr black hole, rare uniform plasma, and the strong uniform magnetic field. The result dearly showed the strong power radiation from the black hole through the magnetic field. It also interestingly showed the magnetic mechanism of the energy extraction of the black hole. However, most of the plasma falls into the black hole and no jet is formed. Then, next we performed the GRMHD simulation of the cases with the radial magnetic field and the magnetic field induced by the electric current loop near the black hole. With these calculations, we have succeeded to show the relativistic outflow, whose velocity is larger than 90% of light speed. Especially, in the current loop magnetic field case, the magnetic flux tubes bridging the region between the ergosphere and the accretion disk around the black hole are twisted by the frame-dragging rapidly. The increase in the magnetic pressure in the magnetic tubes (magnetic bridge) causes the explosive expansion of the magnetic bridges. The numerical results show that the expansion produces the relativistic outflow. In conclusion, the magnetic bridge between the ergosphere and the accretion disk around the Kerr black hole never be steady-state and should be connected to the relativistic jets directly., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2001 -2004, Grant-in-Aid for Scientific Research (C), Toyama University
• 新展開を迎えた磁気リコネクション研究に関する企画調査-実験室から天体まで-
  柴田 一成; 小野 靖; 荻野 竜樹; 寺沢 敏夫; 星野 真弘; 横山 央明
  平成16年度発足の特定領域「磁気プラズマにおける爆発現象-磁気リコネクション研究の新展開」申請のための準備会、会合を以下のように開催した。 第1回 全体会議 2005年6月10日(火)於:京大花山天文台。特定領域の内容、総括班、計画研究案など議論。 第2回 全体会議 2003年7月17日(木)-18日(金)於:東大工学部。 特定領域全体、各研究計画の科学的な目的について詳しく議論し、3つの研究項目を設定。 第3回 幹事会 2003年8月21日(木)-22日(金)於:東大理学部 科学的な目的をつめることにより、9グループによる計画研究案をほぼ確定。総括班メンバーを決定。 第4回 幹事会 2003年9月8日(月)於:東京駅。申請書原案、各計画研究の概要案のチェック、調整。 第5回 全体会議 2003年10月9日(木)於:東大工学部 特定領域全体の構成、項目、計画研究、メンバーなど最終的に確認し、予算案をほぼ決定。 第6回 幹事会 2003年10月24日(金)於:京大花山天文台 領域申請書・総括班・支援班・調整班・および各計画研究の調書に関する調整、議論、執筆。予算案を確定。 第7回 幹事会 2003年10月29日(水)-31日(金)於:京大花山天文台 領域申請書、総括班、支援班、調整班、および各計画研究の調書の最終チェックを行ない、申請書と調書を完成。 第8回 全体会議(国際会議) 2004年3月17日(水)-19日(金)於:京大基礎物理学研究所 Prof.Parker(京都賞)、Dr.Yamada(USA)をはじめとする世界のリーダーを集め、今後の研究戦略を議論。, 日本学術振興会, 科学研究費助成事業, 2003 -2003, 基盤研究(C), 京都大学
• STUDY OF SOLAR FLARE MECHANISM AND ITS APPLICATION TO GAMMA RAY BURSTS
  SHIBATA Kazunari; NOGAMI Daisaku; KITAI Reizaburo; KUROKAWA Hiroki; MINESHIGE Shin; YOKOYAMA Takaaki
  The purpose of this research is to clarify energy release mechanism of solar flares, by examining basic mechanism of reconnection and associated mass ejections and particle acceleration, and to apply solar flare mechanism to cosmic flares and gamma ray bursts. Main research results are as follows. 1)Explanation of apparent difference between hard X-rays and H alpha images of flares based on magnetic reconnection model. 2)Discovery of downflow associated with hard X-ray bursts of flares. 3)Simultaneous observation of Moreton wave with H alpha and X-rays. 4)Discovery of X-ray expanding features associated with Moreton wave (first discovery of 3D structure of coronal fast mode shock). 5)Modeling of EIT wave and Moreton wave with MHD simulations. 6)Identification of fast and slow shocks in giant arcade. 7)MHD modeling of reconnection inflow. 8)Nonlinear Alfven wave model of coronal heating and nanoflares. 9)Discovery of "dawn-dusk asymmetry" in the solar corona. 10)Emission measure -temperature analysis of giant coronal arcade and test of flare/arcade loop length scaling law. 11)"HR diagram" of solar/stellar flares and coronae. 12)Reconnection heating model of accretion disk corona. 13)General relativistic MHD simulation of collapsars as a model of gamma ray bursts. 14)Log-normal distribution of CME/flare and new model of gamma ray bursts., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2002 -2003, Grant-in-Aid for Scientific Research (C), KYOTO UNIVERSITY
• Observational Research of Plasma Ejection Mechanism in Solar Emerging Flux Region.
  KUROKAWA Hiroki; UENO Satoru; KITAI Reizaburou; SHIBATA Kazunari; YOSHIMURA Keiji
  During the period of this research project, we made several coordinated observations of solar explosive phenomena, or Hα surges, X-ray jets, EUV jets and flares in multiple wavelengths by simultaneously using the Domeless Solar Telescope of Hida Observatory and TRACE satellite. We got the following new results which all strongly support the magnetic reconnection model for explosive ejections of solar plasma. (1)From the high resolution observation of Hα surges with the Domeless Solar Telescope at Hida Observatory, Kyoto University, we found two kinds of downward-moving features in the Hα surge regions. One is along the same magnetic field line as that of the upward-moving feature. The other streams are along a different magnetic field line where no upward-moving feature was found. It was shown that these two kinds of downward-moving features along the different magnetic field lines are wellexplained by a magnetic field reconnection between emerging flux loops and pre-existing coronal magnetic field. (2)At the coodinated observation in August 1999, we succeeded to observe an emerging flux region appearing just on the solar limb simultaneously at Hida observatory and TRACE satellite. From the analyses of these data, we found that high temperature(one-million degrees)plasma jets in 171Å are ejected simultaneously with cool Hα and Lα surges. Expanding loops and shrinking loops are also found both in 171Å and Lα images. These phenomena were all explained by the magnetic field reconection. (3)Conspicuous activities of plasma ejections along a light bridge of a stable sunspot were, for the first time, observed simultaneously in Hα and in 1716Å. We found that(a)the times and velocities of the 171Å ejections are the same as those of Hα ejections and that(b)the appearance of the ejections are different from one another ; i.e., the Hα ejections have a jetlike, while the 171Å are like loops. (4)A flare productive active region NOAA 9026, which produced three X-class flares on 6-7 June, were successufully observed in the coordinated observation among Hida, La Palma, and TRACE.From detailed analyses of the region we found that a strongly-twisted emerging magnetic flux rope produced strong flares when it slipped out from the photosphere into the corona., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1999 -2000, Grant-in-Aid for Scientific Research (C), KYOTO UNIVERSITY
• "Energy Release, Particle Acceleration, and Magnetic Reconnection in Solar Flares"
  KOSUGI Takeo; MASUDA Satoshi; SHIBATA Kazunori; SAKURAI Takashi; TSUNETA Saku; UCHIDA Yutaka
  This research project was proposed for unveiling the solar flare mechanism, i.e., energy release, particle acceleration, and their relation to magnetic reconnection. These have been the main objectives of the Yohkoh satellite, which was launched by ISAS in August 1991. With a large amount of data accumulated by Yohkoh in the past five years, in conjunction with ground-based observations, we have aimed to deepen our understanding on how these processes take place. The project team has been so organized as to cover almost all solar physicists in Japan. During the three-year term of this project, we have tried to improve the data archive and analysis tools, organized several mini-workshops on specific topics, and held a big symposium every year for exchanging ideas and science results. We have achieved the following : 1. Progress in data archive and analysis tools, including drastic improvement of the Yohkoh hard X-ray telescope's image synthesis program ; 2. Organization of collaborative data analysis framework with foreign solar physics satellites such as SOHO and TRACE ; 3. Coordinate data analysis using Yohkoh and ground-based observations such as from Nobeyama Radioheliograph, Mitaka Flare Telescope, and Hida Domeless Telescope, resulting in revealing the compLex magnetic field geometry causing flare explosion ; and 4. Progress in theoretical or numerical studies, which shows that solar flares and coronal mass ejections can be understood as different aspects of magnetic reconnection taking place in the corona with slightly different conditions. The scientific outputs from this project have been summarized in 158 journal and proceedings papers plus 66 talks (excluding those published elsewhere) in various conferences. The proceedings of the three big symposia we organized in this project were already published., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1996 -1998, Grant-in-Aid for Scientific Research (A)
• 宇宙線原子核成分の起源と軽元素合成
  梶野 敏貴; 辻本 拓司; 柴田 一成
  梶野は,高エネルギー宇宙線原子核の反応と伝播メカニズムを詳細に検討した。さまざまな柱密度を持つ星間ガス中でのイオン化率やエネルギー損失を考慮にいれた宇宙線の伝播・散逸方程式を解くことにより,入射宇宙線のエネルギースペクトルだけでなく衝突・破砕反応で作られた二次粒子の星間物質中でのふるまいとStoppingを明らかにした。辻本と協力して,これまで標準モデルとしてよく用いられてきた銀河の化学・力学的進化のシンプルモデルの精密かを試みた。即ち,デイスク・ハロ-間のガス膠着による相互作用を取り入れた2ゾーンLeaky Boxモデルから出発し,質量も寿命も異なる星での元素合成と質量放出の時間の遅れを陽に取り入れた詳細モデルの構築を試みた。これに必要な重元素量ゼロから現在の太陽系に至るまでの様々な初期元素組成ガスによる星の進化と元素合成の計算を,東京大学天文教室の超新星研究グループに依頼した。柴田とは,MHDをベースとした計算機シミュレーションによって,銀河磁場中での宇宙線の挙動や宇宙線原子核成分の銀河閉じ込め効率の議論を開始した。この共同研究は現在も継続中であり,今後,三人の研究結果を総合して,初期銀河から現在に至るまでの銀河ガスの進化モデルを用いて,リチウム,ベリリウム,ボロン,フロリン,チタニウム,バナジウム,スカンジウム等の元素量の時間発展を計算し,天文観測と比較検討する予定である。これによって,梶野が提案した宇宙線の超新星直接起源仮説の立証を試みる。, 日本学術振興会, 科学研究費助成事業, 1997 -1997, 重点領域研究, 国立天文台
• 数値的宇宙物理学
  観山 正見; 梅村 雅之; 花輪 知幸; 中村 卓史; 柴田 一成; 野本 憲一
  現代天文学の進展は、観測技術・観測機器の改良とスペース望遠鏡や大型望遠鏡の活躍によって目覚ましいものがある。しかし、天文学の一つの宿命は、様々な宇宙現象を実験的手段によって解析不可能であることである。宇宙の創世、銀河・星・惑星系の形成、ブラックホールの生成などの過程をいくつかの初期条件や環境効果(境界条件)を変えて解析することは不可能である。ところが、最近の超高速計算機の進展によって、基本方程式をプログラム化して、様々な初期条件や境界条件を与えることで、複雑な天体現象を解析することが可能となった(数値学的宇宙物理学)。天文学における唯一の実験的手段としての超高速計算機によるシミュレーションは、現代天文学においてますます重要性が高まっている。 このような天文学における現状をもとに、国際シンポジウム「数値的宇宙物理学」が日本で平成10年に開催される予定である。この会議は、数値的宇宙物理学の世界的権威や活動的研究者を招待して、(1)新しい数値計算法の検討、(2)並列・ベクトル型スーパーコンピューターのための計算手法の検討、(3)専用計算機の新たな活用、(4)シミュレーション結果の提示と観測データとの比較等を目的としている。本申請研究では、国際シンポジウムの主催者である代表者が、国内の組織メンバーを研究班に加えて、この国際会議に向けて、国際会議の内容面に関する企画と、国内の研究者の有機的な連携の下に国際会議における研究面での準備を行うことを実行した。特に、国立天文台にスーパーコンピューターが平成8年に導入されたことも契機として、「数値的宇宙物理学」分野での研究が、国内で研究会を開き成果報告を実行してシンポジウムの準備会を開催した。, 日本学術振興会, 科学研究費助成事業, 1996 -1996, 基盤研究(C), 国立天文台
• UK-Japan Cooperative Study of Solar Flares with the Yohkoh Mission
  WATANABE Tetsuya; SHIBATA Kazunari; TSUNETA Saku; SAKURAI Takashi; KOSUGI Takeo; OGAWARA Yoshiaki
  Yohkoh has been working very well for more than five years and a half with no serious degradation and its operation entered into a phase in which we can do systematic activity-cycle related analyzes. Collaboration with the SoHO satellite had an important role. SoHO was successfully launched in December, 1995. Database of the half solar cycle and softwares for analysis were completed. Yohkoh Data Analysis Center (YDAC) set up in MSSL has playd a key role in organizing active international collaboration in Europe and became the European center of Yohkoh data flow. Compilation of atmic data helpful for analyzing the Yohkoh and SoHO data also made a good progress by activating discussions among UK and Japanese scientists. The followings are brief summary of the new results : (1)BCS without collimators could diagnose SXV emission lines from single active region on the solar disk that appeared in July, 1996, and collaboration with a rocket experiment, SERTS,made it possible to reveal the temperature structure of an active region in May 1996. (2)SoHO EIT/CDS and Yohkoh SXT simultaneously observed jetlets (tiny jet-like structure) around the polar region, and found that these phenomena were also triggered by magnetic reconnection. (3)Analysis of a large number of impulsive flares seen in HXT suggested a new interpretation for nonthermal particle acceleration, especially for low energy cutoffs., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1996 -1996, Grant-in-Aid for international Scientific Research, National Astronomical Observatory
• 3D MHD Simulation Study of Solar Fares as Derived by the Satellite Yohkoh
  UCHIDA Yutaka; HIROSE Shigenobu; SHIBATA Kazunari
  Among the new observational findings obtained by the Xray Satellite Yohkoh, the new findings we derived about arcade flarings turn out to be quite different from what the classical "reclosing of once opened-up bipolar arcade model" predicted. In the present work, we concentrate on seeking a new model that can explain these new observational findings. What we have found by the analyses of the Yohkoh data were, (1) faint pre-event structure of arcade formation is not a simple bipolar magnetic arcade as assumed in the classical model, but dual arcades side by side with inner legs crossing is invorved, (2) what we call a "spine" comes up rising sometime after the dark filament flies away, quite unexpected in the classical model. This is consisted of multiple thin threads, and can not be the locus of reconnecting points as may be explained in the classical model, and (3) in arcade flares, we found that there exist large loops connecting the top of the flare cusp back to the photosphere on both sides, and there is a bright structure near the axis of the dark tunnel below the cusp. These have no model counterpart in the classical model. Those findings, in contrast, are exactly what can be explained in the model proposed by Uchida. We, therefore, revived the "Quadruple Source Model" that was previously proposed by Uchida, but did not become the main stream due to the lack of good enough observation to confirm its coronal characteristic features that time. We have developed the equiliblium solution into a time-dependent simulation scheme, and seek solutions. In 1996, we reached a conclusion that the quadruple source model we have been developing give most of the observed behavior if we start the dynamic simulation from a squeezed state with longitudinal magnetic field in the neutral sheet in the corona above the central polarity-reversal line. The configuration can store magnetic energy in the form of magnetic stress, and can release it when some triggering helicity is injected into the dark filament part and squeeze it out from the neutral sheet. The stress energy stored in the entire region can be released through reconnection then allowed the reconnection to occur at the neutral point. This model explain the above-mentioned observed facts pretty well, and we start reporting about it., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1995 -1996, Grant-in-Aid for Scientific Research (B), Science University of Tokyo
• UK-Japan Cooperative Study of Solar Flares with the Yohkoh Mission
  WATANABE Tetsuya; BENTLEY R.D.; CULHANE J.L.; MASUDA Satoshi; HARA Hirohisa; SAKAO Taro; TSUNETA Saku; SHIBATA Kazunari; SAKURAI Takashi; KOSUGI Takeo; OGAWARA Yoshiaki; UCHIDA Yutaka
  The sun observing satellite YOHKOH has been successfully operated for five years from the previous activity maximum and throughout the declining phase.All the scientific instruments onboard has been in good condition and the soft X-ray instruments can observe the quiet sun even at its minimum. Investigating the whole set of data, the keyword of "magnetic reconnection" has been emerged as a fundamental process for producing high temperature plasmas in the corona.Loop-top hard X-ray sources newly found by Yohkoh show consistency with the "magnetic reconnection scenario." Characteristic of nonthermal line broadenings seen in helium-like sulphur lines were systematically investigated.The locations of hot plasmas at the time of the line broadening maximum were either footpoints or loop top of flaring loops. Statistical studies of X-ray jets were also completed and they were mostly found in active regions with mixed magnetic polarity and strongly associated with emerging-flux regions.The interaction of emerged magnetic fields with pre-existing coronal field causes X-ray jets.Correspondence with micro-flares also suggests that the both phenomena come from the same mechanism. On the other hand, some evidence also appeared for the mechanism of basic coronal heating was something other than "magnetic reconnection." The Yohkoh dataset was compiled for nearly half of the solar cycle, with which studies of solar cycle and solar dynamo mechanisms will be done in future.The SoHO satellite launched in December 1995 will now station at the Lagrangean point and start its observations.Joint observations and collaborative studies with SoHO will be highly encouraged for the first space observations in the rising phase of the solar activity., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1994 -1995, Grant-in-Aid for international Scientific Research, National Astronomical Observatory
• 磁気リコネクションの物理:現状と課題
  荻野 竜樹; 鵜飼 正行; 柴田 一成; 常田 佐久; 西田 篤弘; 星野 真弘
  磁気リコネクション過程は,地球,惑星磁気圏,核融合プラズマの分野において,観測・実験並びに理論・モデル・シミュレーションから幅広く研究されてきている。しかも,数多くの先駆的な研究が国内の研究者によって精力的に発表されてきた分野でもある。ここ数年,より現実的なモデル・シミュレーション研究が活発に行われ,磁気リコネクションの3次元的描像,現実的な磁気圏構造での発展の様子,異常電気抵抗と粒子の効果等が明らかにされつつある。 一方,太陽観測衛星「YOHKOH」のX線画像は,太陽表面磁場構造の時々刻々のダイナミカルな変化を私達にみせてくれており,地球磁気圏観測衛星「GEOTAIL」の電磁場,プラズマ,プラズマ波動観測は,磁気圏の激しく変化する姿をみせてくれている。これらの現象の中で,変化の激しいダイナミカルな現象の多くが磁気リコネクション過程と密接に関連していると想像されている。 そこで,『磁気リコネクション』というキーワードを念頭において,「GEOTAIL」による地球磁気圏と「YOHKOH」による太陽コロナの最新の観測結果と理論モデルを比較検討すべく3回のワークショップを持った。話題としては,2次元定常リコネクションの検討,スイ-ト・パーカー型か,ペチェック型の高速磁気リコネクションか,高速リコネクションを引き起こす原因は外部にあるのか,内部にあるのかの討論が活発に行われた。また国産の科学衛星「GEOTAIL」と「YOHKOH」の観測をもとにしたリコネクションの起こっている証拠及び状況証拠と理論・モデルとの比較検討を行った。地球磁気圏尾部におけるプラズモイドの観測,磁気中性線でペチェック型の高速リコネクションが起こっていることを証拠立てるSlow Shockの観測結果が報告された。一方,太陽観測からは,大規模太陽フレアが磁気リコネクションと強く関係していることを信じさせるに十分な軟X線画像が提出された。一方,マイクロフレアも大規模フレアと同様に磁気リコネクションの結果として発生することが新たに示された。, 日本学術振興会, 科学研究費助成事業, 1994 -1994, 総合研究(B), 名古屋大学
• Study of Solar Flares and Development of Magnetic Field
  HIRAYAMA Tadashi; KUROKAWA Hiroki; MASUDA Satoshi; OGAWARA Yoshiaki; YOSHIMURA Hirokazu; TSUNETA Saku; KOSUGI Takeo; ENOME Shinzo; HARA Hirohisa; ICHIMOTO Kiyoshi; SHIBATA Kazunari; WATANABE Tetsuya; SAKURAI Takashi; AI Gouxiang; ZHANG Bairong; ZHANG Heqi
  The Solar-A ( 'Yohkoh' ) satellite was launched in August 1991, and has been returning X-ray data of the solar corona and the solar flares. An important knowledge which Yohkoh has brought to us is that a full understanding of the coronal physics inevitably requires supporting ground-based observations. Such observations are being carried out both in Japan and in China, in optical and radio wave bands. This project aimed at combining high quality optical and radio data obtained at the observing facillities in both countries together with X-ray data from Yohkoh. We have conducted a similar cooperative research program in 1992-93, so that the scientists in the two counties were ready for the present research program. In order to report the results of cooperative researches, in the period from August 31 to September 5,1994, a workshop on solar physics was held in Dunhuang, China. Thirteen Japanese and about thirty Chinese scientists participated in the workshop. Studies combining Yohkoh X-ray data and ground-based optical or radio data have been initiated in China, which we believe are the contributions from this cooperative program. Another topic of discussion in this project is the space program on solar physics in the future. Both countries have plans to launch an optical telescope to observe the sun in high spatial resolution. The continuation of this program was strongly supported from the participants of both countries. Chinese side will apply for Chinese Science Academy and Natural Science Foundation of China, and Japanese side will apply for the Ministry of Education international research grant, and also for Japan Society for the Promotion of Science for support., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1994 -1994, Grant-in-Aid for international Scientific Research, National Astronomical Observatory
• Solar Physics in High Spatial Resolution
  SHIBATA Kazunari; SCHUSSLER M.; SCHROTER E.; TOHMURA Ichiro; KITAI Reizaburo; KUROKAWA Hiroki; SUEMATSU Yoshinori; SAKURAI Takashi; HIRAYAMA Tadashi
  The Solar-A ('Yohkoh') satellite was launched in August 1991. This satellite aims at studying the sun in X-ray. So far the satellite performs quite satisfactorily, returning spectroscopic and imaging data of the solar corona and the solar flares. An important knowledge which Yohkoh has brought to us is that the solar corona is more dynamic and magnetically structured than we anticipated, and full understanding of the coronal physics inevitably requires the observations of the chromosphere and the photosphere with the best available resolution. The project we proposed aims at combining high quality optical data obtained at the observing facilities in both countries together with X-ray data from Yohkoh. For this purpose the Japanese participants visited Kiepenheuer Institute and discussed scientific programs to be pursued under this cooperative program. As an outcome of this cooperation, the first coordinated observation was carried out in the period of 3-13 August, 1993. Observatories around the world including those in Japan and in the Canary islands (Spain) participated in this campaign. Several interesting research topics were identified and analyzed in a workshop held in 1994 February. Initial results of this campaign will be presented at the spring meeting of the Astronomical Society of Japan., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1993 -1993, Grant-in-Aid for Overseas Scientific Survey., National Astronomical Observatory
• UK-Japan Cooperative Study of Solar Flares with the SOLAR-A Spacecraft
  WATANABE Tetsuya; BENTLEY Robert D.; NISHIKAWA Jun; SAKAO Taro; SHIBATA Kazunari; TSUNETA Saku; SAKURAI Takashi; KOSUGI Takeo; OGAWARA Yoshiaki; HIRAYAMA Tadashi; CULHANE J.Leonard
  The Yohkoh mission was launched in 1991 for the observation of solar flares with a coordinated set of instruments in X-rays and gamma-rays. The Brag crystal spectrometer(BCS) on Yohkoh has an order of magnitude increased sensitivity with less weight and size, if it is compared to the spectrometers flown in the previous solar activity maximum. The instrument was designed and manufactured under the Anglo-Japanese cooperation. The main scientific goal of this instrument is to observe the plasma motions and the transient heating and particle acceleration of flaring plasma at the initial phases of solar flares. The scientific analyses of the Yohkoh data have been done by solar physicists of the both countries. The completely blueshifted emission line was found in the very beginnings of flares. This new discovery supports the hypothesis of chromospheric evaporation. The sulphur emission from solar active regions suggests a possibility of the microflare heating of active regions. The solar corona is very dynamic and many kinds of activity take place as the result of magnetic reconnection., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1992 -1993, Grant-in-Aid for international Scientific Research, National Astronomical Observatory
• Study of Solar Flares and Development of Magnetic Field
  HIRAYAMA Tadashi; OGAWARA Yoshiaki; KUROKAWA Hiroki; MAKITA Mitsugu; TSUNETA Saku; KOSUGI Takeo; ICHIMOTO Kiyoshi; SAKURAI Takashi; ENOME Shinzo; ZHANG Bairong; ZHANG Heqi; SAKAO Taro; SHIBATA Kazunari; AI Guoxiang
  The Solar-A ('Yohkoh') satellite was launched in August 1991, and has been returning X-ray data of the solar corona and the solar flares. An important knowledge which Yohkoh has brought to us is that a full understanding of the coronal physics inevitably requires supporting ground-based spectroscopic and imaging observations, in particular the observations of the magnetic field on the solar surface. This project aimed at combining high quality optical data obtained at the observing facilities in both countries together with X-ray data from Yohkoh. For this purpose the Japanese participants visited China in 1992 September and presented the most recent results from Yohkoh and other instruments. This stimulated the participation of Chinese solar physicists into the analysis of Yohkoh data. In 1993 February, Prof. Ai visited Japan and discussed specific targets of cooperative research. We selected three active regions to study, and scientists in both countries started data analysis. In 1993 July we held a workshop at Sagamihara for summarizing the studies made so far. Nineteen solar physicists from China participated in this meeting, and the proceedings was published. After the meeting the Chinese participants visited several observatories in Japan and investigated the possibility of further cooperative researches. As an outcome of this effort, in 1993 August China participated in an observing campaign in cooperation with Yohkoh for the study of the evolution of emerging flux regions. The initial results will be reported at the meeting of the Astronomical Society of Japan. Another topic of discussion in this project is the space program on solar physics in the future. Both countries have plans to launch an optical telescope to observe the sun in high spatial resolution. Technical issues on the filter instruments to be flown with the satellite were extensively discussed in this program., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1992 -1993, Grant-in-Aid for international Scientific Research, National Astronomical Observatory
• ハッブル宇宙望遠鏡で観測される宇宙電磁流体現象のシミュレーション解析
  内田 豊; ATTILIO Farr; ROBERT Rosne; COLIN Norman; 松元 亮治; 柴田 一成; 観山 正見; 池内 了; ATTLIO Ferra
  平成4年度は米国側Norman教授がこれまで、のHSTによる観測結果から宇宙電磁現象の特徴を持った対象についての情報を提供し、これに対して日本側で数値シミュレーションの準備および実行を進めた。対象としては(i)星形成ジェト、TTau型星の円盤、(ii)活動銀河中心部の緒活動、等のHSTの高分解を用いて初めて行えるこれらの構造とその中の速度分布の研究、および(iii)ライマン・アルファ・フォレストを作っている原始銀河のハロー構造や原始銀河の空間分布等の深宇宙の構造についとの研究を選んだ。(i)は内田、観山、柴田にRosner教授が協力し、(ii)は内田、松本、柴田にFerrari教授とそのグループが協力し、また(iii)は池内にNorman教授のグループが協力して、それぞれの問題について数値シミュレーションの手法を用いて解析を行い観測と比較を行った。平成3年度は、HST副鏡の問題で予定のデータ取得が遅れ気味であったこともあって、シミュレーション・サイドの開発を先行させたが、平成4年度にはほぼ順調なペースに戻った。平成4年も前年度に引続いて形成中の星からの高速の光学ジェットの発生に対して電磁流体力学的機構を適用してシミュレーション解析ソフトの開発を行い、Herdig-Haro天体を「磁場に導かれた光学ジェット前面の電磁流体衡撃波とそれによって加速された星間小雲」として説明する新しいモデルを1.5次元のMHDコードを用いたシミュレーションを用いて計算を進めた。Herdig-Haroの天体の捻れた尾の形成機構として、これがMHDヘリカル不安定による説明されるのではないかという、同グループでの開発下3次元MHD風上差分コードによりシミュレーション解析は、対応する観測も出始めている。又、これを更に活動銀河からのジェットの場合に拡張適用する手を考え、これを内田、松本、柴田Normann,Ferrariで発展させている。これはハッブル望遠鏡では得られたMg7ジェットの構造が非常にこれを示唆するものである事が判り、現在更に比較を進めようとしている。, 日本学術振興会, 科学研究費助成事業, 1991 -1993, 国際学術研究, 東京大学
• Solar Physics on High Spatial Resolution
  SHIBATA Kazunari; KITAI Reizaburo; KUROKAWA Hiroki; TSUNETA Saku; SUEMATSU Yoshinori; HIRAYAMA Tadashi; SCHUSSLER M.; SCHROTER E.
  Last year, we launched the solar-A satellite (now called 'Yohkoh'). This satellite aims at studying the sun in X-rays. So far the satellite performs quite satisfactorily, returning spectroscopic and imaging deta of the solar corona and the solar flares. An important knowledge whichYokoh has brought to us is that the aslar corona is more dynamic and magnetically structured than we anticipated, and full understanding of the coronal physics inevitably requires the observations of the chromosphere and the photosphere with the best available resolution. The project we proposed aims at combining high quality optical data obtained at the observing facilities in both countries together with X-ray data from Yohkoh. For this purpose the Japanese participants visited kiepenheuer Institut and discussed scientific programs to be pursued under this cooperative program. As an outcome of this cooperation, the first coordinated observation is scheduled in August, 1993., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1992 -1992, Grant-in-Aid for Overseas Scientific Survey., National Astronomical Observatory
• Theoretical Study of Magnetohydrodynamic Phenomena in Active Celestial Objects
  SHIBATA Kazunari; SATO Tetsuya; SAWA Takeyasu; MATSUMOTO Ryoji; UCHIDA Yutaka; HANAWA Tomoyuki
  The purposes of this project are to organize cooperative research on various magnetohydrodynamic phenomena (reconnection, dynamo, MHD turbulence, MHD wave, jet, accretion, etc.) observed in many active celestial objects, and to encourage active communication between researchers, who are studying similar physical processes, in different fields (e.g., astronomy, nuclear fusion, plasma physics, geophysics, fluid mechanics). In order to accomplish these objectives, we held a symposium on cosmic MHD phenomena at Atami in September, 1992. More than 60 people attended. We discussed not only theoretical research results but also observational results in relation to various cosmical plasmas ranging from fusion plasmas to intergalactic plasmas. Specific items we discussed are; dynamo processes in fusion plasmas, convection and dynamo in terrestrial and planetary cores, vortex reconnection, magnetic reconnection and Kelvin-Helmholtz instability in terrestrial magnetosphere, acceleration and dynamics of solar wind, magnetohydrodynamic phenomena in the Sun (especially on magnetic reconnection and dynamic phenomena in the solar corona observed by YOHKOH), jet formation in black hole magnetosphere, magnetic field in star forming regions, MHD phenomena in interstellar space, intergalactic magnetic fields, etc. Major results obtained by these researches are summarized in the following; (1) We compared magnetic reconnections occurring in the tail of terrestrial magnetosphere and in the solar corona, and found that the formation and acceleration of plasmaids play a key role in both cases. This has also been confirmed by 2D and 3D MHD numerical simulations of magnetic reconnection for both terrestrial and solar cases. (2) Various dynamic phenomena (loops, jets, spincules) similar to solar coronal dynamic phenomena have been discovered in disk galaxies from detailed comparison between solar coronal images taken by YOHKOH and high resolution optical images of disk galaxies. Numerical simulations have also been done for the Parker instability both in disk galaxies and in the Sun, which explains the formation of magnetic loops in disk galaxies and the Sun., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1991 -1992, Grant-in-Aid for Co-operative Research (A), National Astronomical Observatory
• Cooperative Research of Solar Activity Based on Magnetic Shears
  HIRAYAMA Tadashi; UNNO Wasaburo; SHIBATA Kazunari; WATANABE Tetsuya; KUROKAWA Hiroki; MAKITA Mitsugu
  The Yohkoh satellite, which was successfully launched in 1991, is still working quite well in orbit and bringing a lot of new results. The satellite is now in the regular-operation phase. The Flare Telescope and the Radio Heliograph in NAO also started their regular observations and constitute a global groundbased solar observation network, as well as the Hida Domeless Solar Telescope. The collaborations between Yohkoh and the observatories on the ground have been much activated in 1992. Based on this circumstance several workshops and symposia were held, centering the results from the Yohkoh data. In September 1992, the symposium "One Year Research of YOHKOH" was held at NAO mainly for domestic researchers and the second Yohkoh Science Meeting was held in February 1993, in which more than forty people participated from abroad. The both of them were quite successful and stimulated a lot of discussions and future collaborations. One of the new observational results in this solar activity maximum is that a picture of the solar activity has been established which originates from the magnetic reconnection and the magnetic shears. In solar flares, the scenes of the energy release via the magnetic reconnection and of the chromospheric evaporation of abruptly heated plasmas in the flaring loop were actually investigated. It has also revealed evident that the solar corona is quite dynamic, that a small flare-like transient brightening, a sudden increase of XBP intensity, and a jet-like abrupt motion of plasma are very common in active regions, that coronal holes globally change their structure of magnetic field and that all of them are closely related with the reconnection process of the magnetic field in the solar corona., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1990 -1992, Grant-in-Aid for Co-operative Research (A), National Astronomical Observatory
• 星形成領域の磁気動力学
  内田 豊; 柴田 一成
  平成3年度は、星形成のダイナミックスの関連では、内田、柴田、および共同研究者(大学院生)達は以下のことを示した。 (i)星形成に伴って星自身が双極磁場を持つ段階になると、これは円盤がその中に持ち込んでいる大局磁場と、磁気中性リングを介して相互作用をする。この磁気再結合を通して円盤質量の中心星へのリリ-スが起こり、一方再結合により起こる磁場の変形の回復、エネルギ-解放過程においてその一部が極方向に加速放出される。このモデルではジェットは数百km/sに加速され、中空円筒形でスピンしている。 (ii)星形成過程の中でその周辺に生じたと考えられるヘリカル磁場構造の中に極方向にこのような高速ジェットが放出されたとすると、それは磁場に沿ってヘリカル流となり、ジェット先端前後に4つの衝撃波が伝る事が伴った。先頭は速進波衝撃波で等方的に伝るためバウショックとなり,接触不連続面を挾む2番目と3番目が遅進波衝撃波で、その間が最も密度・温度が高い。ジェットが雲と遭遇してその質量を加速する場合はその負荷のため後方の速進波衝撃波は空間的に静止に近くなり、遅進波衝撃波との間の部分の磁場ヘリシテイ-は大きくなり、条件によってはヘリカル不安定が発達してジェットはくねくね構造となる。これらの特徴はHH46/47等の観測をきれいに説明する。 (iii)大質量雲から延びるストリ-マ-が星形成双極流のUchida‐Shibata modelのように角運動量抜きのドレインになっているのではないかと考え、名古屋グル-プに提案して13COで観測を行った。予想通り、ストリ-マ-は軸の回りにスピンしていることが判明した。この観測でオリオン・ストリ-マ-の南端に速度の大きく分離した魚の尾形の構造を発見し、その成因としては電磁流体モデルが最も説得性を持つ事が判った。, 日本学術振興会, 科学研究費助成事業, 1991 -1991, 重点領域研究, 東京大学
• 太陽・恒星大気における磁束浮上の磁気流体力学過程の研究
  柴田 一成
  日本学術振興会, 科学研究費助成事業, 1989 -1989, 奨励研究(A), 愛知教育大学
• 天体磁気質量吸着過程と双極ジェットの発生機構
  内田 豊; 柴田 一成; 池内 了
  62年度は前年度に行なった活動銀河核からの電波ジェットとローブの放出構についての研究を更に進めると同時に, 星形成域のストリーマー構造, 熱い光学ジェットの発生とそのハービック・アロー天体の成因との関係等を大局磁場中での星形成で磁気吸着質量の回転から発生するアルフベン捻れ波による機構と類似の機構で説明出来る事を提案し, シミュレーション条による実証を試みた. 第一の問題については, 大局磁場を持つ原子銀河間雲から銀河が形成される時, 中心に落ち込むガスが大局磁場を引き込んで短いタイムスケールで中心の回りを回転することにより中方向の磁場が作られ, これが±Z方向にほどけて行く時に±Z方向にヘリカル速度場を持つガスと進行ピンチ波となるB6を発生する. これが磁場をZ軸に沿ってピンチし, 更に磁場の弱い領域にさしかかると, 拡がっている弱い磁場を束ねる形で磁場の"たくし込み"が起って来る. これは二つ目をローブの中の磁場の様子と電波ジェットの様子を良く説明する. この機構が働く状況としては銀河中心にたまるガスから生じたガス円盤, 更に中心部に成長するブラックホールとその回りのコンパクト円盤の二種類が考えられるがこれは観測される二種類のジェット+ローブの〓〓に対応するものと思われる. 後の問題としては, 星形成に関して多くの星が発生する大きなガス雲に〓を持つストリーマー構造は, 内田etal(1988)によりスピンしている事が見出された事から, 星の双〓流と同様に星形成雲全体から角運動量を抜く機構ではないかと考えた. 又, ハービック・アロー天体は形成星からの熱に光学ジェットが磁束に〓かれて運動量を与えて加速すると考え, 従来の稀薄な恒星風による加速理論の難点を解消し, シミュレーションによりこれを示しつつある., 日本学術振興会, 科学研究費助成事業, 1986 -1987, 一般研究(C), 東京大学
• Activity in Galactic Nuclei
  TABARA Hiroto; WAKAMATSU Ken-ichi; INOUE Makoto; TAKAHARA Fumio; SOFUE Yoshiaki; TOSA Makoto
  1.The photometoric,spectroscopic and polarimetric observations of the active galaxies(Seyfert galaxies, Blazars,KUG and KUV objects) have been made with the purpose of investigation of activity in the nucleus of galaxies. A synchronous variation of polarization angle of OJ287 was found at optical and radio frequencies, but NGC4151 shouwed no significant light variations. A majority of KUGs was found to belong to the starburst galaxy which had large HII regions. Statistical analysisi of Blazar are carried out. 2.The analysis of intercting and pair galaxies revealed that the interaction of alaxies cause the star formation in the central region. 3.The dynamical processes in the concentration of a rotating disk was investigated by using MHD numerical simulation. As the rotating disk contracts, the accelerated gas which is collimated by the helical twisted magnetic field forms a bipolar jets. A continuous energy ejection of violent gas after the starburst formed the galactic-scale bipolar flow. Activities in the nucleus have been investigated on electronpositron pairproduction and on the development of relativistic plasmas in conection with hard X ray emission. 4.Axisymmetric and non-axisymmetric global structure of galactic magnetic fields was studied on the basis of generalized dynamo equation. Magnetic field structures in the galactic center originate from the primordial largescale magnetic field trapped to the protogalaxy from the intergalactic space. 5.Obsevations of compact sources with the higest angular resoulution have been achieved using a space VLBI and mm wavelengths VLBI. 6.Machine readable catalogues of galaxies and of extragalactic radio sources have been accumulated for statistical works. IRAS databese was constructed to be retrieved directly by identifications including galaxies and radio sources., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 1986 -1987, Grant-in-Aid for Co-operative Research (A), Utsunomiya University
• 宇宙ジェット形成過程の研究
  柴田 一成
  日本学術振興会, 科学研究費助成事業, 1985 -1985, 奨励研究(A), 愛知教育大学
• 銀河・降着円盤電磁流体現象
  Competitive research funding
• 宇宙ジェット
  Competitive research funding
• 太陽フレア・ジェット
  Competitive research funding
• Magnetohydrodynamic Phenomena in Galactic and Accretion Disks
  Competitive research funding
• Astrophysical Jets
  Competitive research funding
• Solar Flares and Jets
  Competitive research funding