Observations of magnetic reconnection and its energy transfer in the solar atmosphere

• Project/Area Number: 23540278
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Japan Aerospace Exploration Agency
• Principal Investigator: SHIMIZU Toshifumi 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (60311180)
• Co-Investigator(Renkei-kenkyūsha): 勝川 行雄 大学共同利用法人自然科学研究機構, 国立天文台, 助教 (00399289)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 太陽プラズマ / 磁気リコネクション / 太陽フレア / CMOSセンサ / 紫外線分光 / 磁場 / 相関処理 / 太陽 / 浮上磁場 / 軟X線 / 極紫外線 / 分光器 / 太陽黒点 / 高解像度観測 / 紫外線

Outline of Final Research Achievements

We investigated “magnetic reconnection” phenomena and their related energy transfer process with Hinode observations and discovered a precursory structure of sunspot penumbra during the development of sunspots. We also identified high-speed gas flows at the photosphere excited in horizontal magnetic field and their key roles on the development of energy for leading to an energetic flare. In addition, we established concepts on high-speed CMOS camera and high-throughput UV spectroscopic telescope, both of which are essential in next-generation observations. The SOLAR-C mission proposal, which includes results from our conceptual studies, has been submitted to JAXA.

Research Products

• [Journal Article] High speed photospheric material flow observed at the polarity inversion line of a delta-type sunspot producing an X5.4 flare on 7 March 2012 (2014)
  • Author(s): Shimizu, T., Lites, B.W., and Bamba, Y.
  • Journal Title: PASJ Volume: 66 Issue: SP1
  • DOI: 10.1093/pasj/psu089
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Large aperture solar optical telescope and instruments for the SOLAR-C mission (2014)
  • Author(s): Suematsu, Y., Katsukawa, Y., Hara, H., Kano, R., Shimizu, T., Ichimoto, K.
  • Journal Title: Proc. SPIE Volume: 9143 Pages: 91431P-91431P
  • DOI: 10.1117/12.2054373
• [Journal Article] New developments in rotating and linear motion mechanisms used in contamination sensitive space telescopes (2014)
  • Author(s): Shimizu, T., Watanabe, K., Nakayama, S., Tajima, T., Obara, S., Imada, S., Nishizuka, N., Ishikawa, S., Hara, H.
  • Journal Title: Proc. SPIE Volume: 9151 Pages: 915138-915138
  • DOI: 10.1117/12.2055664
• [Journal Article] The Hinode spectro-polarimeter (2013)
  • Author(s): Lites, B.W., Akin, D.L., Card, G., Cruz, T., Duncan, D.W., Edwards, C.G., Elmore, D.F., Hoffmann, C., Katsukawa, Y., Katz, N., Kubo, M., Ichimoto, K., Shimizu, T., Shine, R.A., Streander, K.V., Suematsu, Y., Tarbell, T.D., Title, A.M., Tsuneta, S.
  • Journal Title: Solar Physics Volume: 283 Issue: 2 Pages: 579-599
  • DOI: 10.1007/s11207-012-0206-3
  • Peer Reviewed
• [Journal Article] Properties of a decaying sunspot (2013)
  • Author(s): Balthasar, H., Beck, C., Gomory, P., Muglach, K., Puschmann, K.G., Shimizu, T. and Verma, M.
  • Journal Title: Central European Astrophysical Bulletin Volume: 27(2) Pages: 435-446
  • Peer Reviewed
• [Journal Article] Evidence for Hot Fast Flow above a Solar Flare Arcade (2013)
  • Author(s): Imada, S., Aoki, K., Hara, H., Watanabe, T., Harra, L. K., Shimizu, T.
  • Journal Title: The Astrophysical Journal Letters Volume: 776 Issue: 1 Pages: L11-L11
  • DOI: 10.1088/2041-8205/776/1/l11
  • Peer Reviewed
• [Journal Article] Emission Height and Temperature Distribution of White-Light Emission Observed by H inode/SOT from the 2012 January 27 X-class Solar Flare (2013)
  • Author(s): Kyoko Watanabe, Toshifumi Shimizu, Satoshi Masuda Kiyoshi Ichimoto and Masanori Ohno
  • Journal Title: The Astrophysical Journal Volume: 776 Issue: 2 Pages: 123-123
  • DOI: 10.1088/0004-637x/776/2/123
  • Peer Reviewed
• [Journal Article] Sunspot bright points (2013)
  • Author(s): Choudhary, P. D. and Shimizu, T.
  • Journal Title: Solar Physics Volume: 288 Issue: 1 Pages: 171-190
  • DOI: 10.1007/s11207-013-0306-8
  • Peer Reviewed
• [Journal Article] Hinode observations of flares and active region emergence (2013)
  • Author(s): Shimizu, T.
  • Journal Title: Journal of Physics: Conference Series Volume: 440 Pages: 12002-12002
  • DOI: 10.1088/1742-6596/440/1/012002
  • Peer Reviewed
• [Journal Article] Precursor of Sunspot Penumbral Formation discovered with Hinode SOT Observations (2012)
  • Author(s): Shimizu, T., Ichimoto, K., and Suematsu, Y.
  • Journal Title: The Astrophysical Journal Letters Volume: 747 Issue: 2 Pages: L18-L18
  • DOI: 10.1088/2041-8205/747/2/l18
  • Peer Reviewed
• [Journal Article] A Laboratory Experiment of Magnetic Reconnection : Outflows, Heating, and Waves in (2012)
  • Author(s): N.Nishizuka, Y.Hayashi, H.Tanabe, et.al.
  • Journal Title: The Astrophysical Journal Volume: 756 Issue: 2 Pages: 152-163
  • DOI: 10.1088/0004-637x/756/2/152
  • Peer Reviewed
• [Journal Article] Dynamical Behaviors of the Solar Chromosphere Observed with Hinode: Dynamics in Sunspot Light Bridges and Magnetic Reconnection Process (2012)
  • Author(s): Shimizu, T. and Imada, S.
  • Journal Title: ASTROPHYSICS AND SPACE SCIENCE PROCEEDINGS Volume: 33 Pages: 23-28
  • DOI: 10.1007/978-3-642-30442-2_3
  • ISBN: 9783642304415, 9783642304422
  • Peer Reviewed
• [Journal Article] Horizontal flow fields observed in Hinode G-band images II. Flow fields in the final stages of sunspot decay (2012)
  • Author(s): Verma, M., Balthasar, H., Deng, N., Liu, C., Shimizu, T., Wang, H., Denker, C.
  • Journal Title: Astronomy and Astrophysics Volume: 538 Pages: A109-A109
  • DOI: 10.1051/0004-6361/201117842
  • Peer Reviewed
• [Journal Article] Precursor of sunspot penumbral formation discovered with Hinode SOT observation (2012)
  • Author(s): Shimizu, T., Ichimoto, K., and Suematsu, Y.
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: 456 Pages: 43-46
• [Journal Article] Long-term Evolution of Magnetic and Dynamical Properties in a Sunspot Light Bridge (2011)
  • Author(s): Shimizu, T.
  • Journal Title: The Astrophysical Journal Letters Volume: 738 Issue: 1 Pages: 83-83
  • DOI: 10.1088/0004-637x/738/1/83
  • Peer Reviewed
• [Journal Article] LEMUR: Large European Module for solar Ultraviolet Research, European contribution to JAXA’s Solar-C mission (2011)
  • Author(s): Teriaca, T., Shimizu, T., et al.
  • Journal Title: Experimental Astronomy, Astrophysical Instrumentation and Methods Volume: 33 Issue: 2 Pages: 273-309
  • DOI: 10.1007/s10686-011-9274-x
  • Peer Reviewed
• [Presentation] 「ひので」のフレア観測：2014 年の状況 (2015)
  • Author(s): 清水敏文、渡邉恭子、伴場由美、ほかひので観測チーム
  • Organizer: 日本天文学会2015年春季年会
  • Place of Presentation: 大阪大学、大阪
  • Year and Date: 2015-03-18 – 2015-03-20
• [Presentation] 太陽観測衛星「ひので」観測研究の推進 (2015)
  • Author(s): 清水敏文
  • Organizer: 太陽研連シンポジウム「サイクル24 極大期の太陽活動と太陽研究の将来展望」
  • Place of Presentation: 名古屋大学、名古屋
  • Year and Date: 2015-02-16 – 2015-02-18
  • Invited
• [Presentation] ひので衛星観測によるフレア予測 (2015)
  • Author(s): 清水敏文
  • Organizer: ンポジウム「太陽地球圏環境予測」~我々が生きる宇宙の理解とその変動に備える社会のために~
  • Place of Presentation: 名古屋大学、名古屋
  • Year and Date: 2015-01-13
• [Presentation] 大規模磁場構造の形成・爆発機構とダイナミクス、および惑星間空間への影響～テーマ設定と背景説明 (2014)
  • Author(s): 清水敏文
  • Organizer: ISASシンポジウム「スペース太陽物理学の将来展望」
  • Place of Presentation: 宇宙科学研究所、相模原
  • Year and Date: 2014-10-20 – 2014-10-21
• [Presentation] SOLAR-Cと海外太陽関連ミッション：科学的位置づけと観測連携 (2014)
  • Author(s): 清水敏文
  • Organizer: 日本天文学会2014年秋季年会
  • Place of Presentation: 山形大学、山形
  • Year and Date: 2014-09-11 – 2014-09-13
• [Presentation] 太陽フレアのエネルギー蓄積・トリガー機構：「ひので」光球磁場・速度場観測からの知見 (2014)
  • Author(s): 清水敏文
  • Organizer: 研究会「GEMSISワークショップ：第３期に向けての研究戦略」
  • Place of Presentation: 名古屋大学、名古屋
  • Year and Date: 2014-09-09 – 2014-09-10
  • Invited
• [Presentation] ISEST/MiniMax24 Project of VarSITI (2014)
  • Author(s): Shimizu, T., Asai, A., Kataoka, R., Zhang, J. Temmer, M., Gopalswamy, N.
  • Organizer: AOGS 11th Annual Meeting (AOGS2014)
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-07-28 – 2014-08-02
• [Presentation] 3D magnetic field configuration of small-scale reconnection events in the solar atmosphere (2014)
  • Author(s): Shimizu, T
  • Organizer: US-Japan Workshop on Magnetic Reconnection (MR2014)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2014-05-20 – 2014-05-23
  • Invited
• [Presentation] Lower temperature response of an EUV wave observed by Hinode/EIS and SDO/AIA (2014)
  • Author(s): Lee, K-S., Kwon, R-Y., Brooks, D. Shimizu, T.
  • Organizer: Japan Geoscience Union Meeting 2014
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2014-05-20 – 2014-05-23
• [Presentation] X5.4 flare on 7 March 2012: magnetic and velocity properties at the solar surface (2014)
  • Author(s): Shimizu, T., Lites, B.W., and Bamba, Y.
  • Organizer: Japan Geoscience Union Meeting 2014
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2014-04-28 – 2014-05-02
• [Presentation] White-Light Emission and Related Chromospheric Response in an X1.8-class Flare on 2012 October 23 (2014)
  • Author(s): Watanabe, K. Shimizu, T., and Imada, S.
  • Organizer: 13th RHESSI workshop
  • Place of Presentation: Windisch, Switzerland
  • Year and Date: 2014-04-01 – 2014-04-04
• [Presentation] SOLAR-C光学磁場診断望遠鏡：像安定化装置(コリレーショントラッカー)に向けた高速CMOSカメラ検討開発 (2014)
  • Author(s): 清水敏文、岡本丈典、飯田佑輔、渡邉恭子、小出来一秀
  • Organizer: 宇宙科学シンポジウム
  • Place of Presentation: 宇宙科学研究所、相模原
• [Presentation] ひのでによる観測研究状況：2013年の観測と2014年への期待 (2014)
  • Author(s): 清水敏文、他ひので観測チーム
  • Organizer: 太陽研連シンポジウム「活動極大期を迎えた太陽研究の新たな展開、彩層プラズマ診断、宇宙天気、Solar-C」
  • Place of Presentation: 京都大学、京都
  • Invited
• [Presentation] 紫外線高感度分光望遠鏡 EUVST (2014)
  • Author(s): 清水敏文
  • Organizer: 太陽研連シンポジウム「活動極大期を迎えた太陽研究の新たな展開、彩層プラズマ診断、宇宙天気、Solar-C」
  • Place of Presentation: 京都大学、京都
  • Invited
• [Presentation] 光球磁場・速度場観測から探る太陽フレアのエネルギー蓄積・解放 (2014)
  • Author(s): 清水敏文
  • Organizer: 磁気リコネクションと太陽プラズマ研究会
  • Place of Presentation: 京都大学東京オフィス会議室、東京
• [Presentation] コリレーショントラッカー用高速CMOSカメラの試作開発 (2014)
  • Author(s): 清水敏文、飯田 佑輔, 岡本 丈典, 渡邉 恭子、 小出来 一秀
  • Organizer: 日本天文学会2014年春季年会
  • Place of Presentation: 国際キリスト教大学、東京
• [Presentation] LEMUR/EUVST: the high spatial and temporal resolution spectrograph for the Solar C mission (2013)
  • Author(s): Teriace, L., Doschek, G.A., Harra, L.K., Korendyke, C., Schuhle, U., Shimziu, T. and the LEMUR/EUVST team
  • Organizer: 6th coronal loops workshop
  • Place of Presentation: La Roche-en-Ardenne, Belgium
• [Presentation] Hinode and SDO/AIA Observations of X-class Flares: Magnetic and Velocity Fields at the Photosphere (2013)
  • Author(s): Shimizu, T.
  • Organizer: International workshop on the interrelationship between Plasma Experiments in the Laboratory and in Space
  • Place of Presentation: Hakuba, Japan
  • Invited
• [Presentation] High speed photospheric flows observed around polarity inversion lines of a delta-type sunspot (2013)
  • Author(s): Shimizu, T.
  • Organizer: Hinode-7
  • Place of Presentation: Takayama, Japan
• [Presentation] X-class flares and photospheric flows observed around polarity inversion lines in delta-type sunspots (2013)
  • Author(s): Shimizu, T.
  • Organizer: International CAWSES-II symposium
  • Place of Presentation: Nagoya, Japan
• [Presentation] EUV/FUV High-Throughput Spectroscopic Telescope (EUVST) (2013)
  • Author(s): Shimizu, T.
  • Organizer: 4th Solar-C science meeting
  • Place of Presentation: Takayama, Japan
• [Presentation] Xクラスフレアを発生させたδ型黒点で観測される顕著な光球高速流 (2013)
  • Author(s): 清水敏文
  • Organizer: 日本天文学会2013年秋季年会
  • Place of Presentation: 東北大学、仙台
• [Presentation] SOLAR-C搭載UV/EUV撮像分光望遠鏡(EUVST)の最新設計 (2013)
  • Author(s): 清水 敏文、L. Teriaca, C. Korendyke他LEMURコンソーシアム
  • Organizer: 第１３回宇宙科学シンポジウム
  • Place of Presentation: 宇宙科学研究所、相模原
• [Presentation] 高解像度で太陽大気を分光診断する紫外線高感度分光望遠鏡 EUVST (2013)
  • Author(s): 清水敏文
  • Organizer: 太陽研究シンポジウム「活動極大期の太陽研究、そして新たな太陽研究への布石」
  • Place of Presentation: 立教大学、東京
• [Presentation] 活動領域における高温コロナプラズマの形成：マイクロフレアの役割 (2013)
  • Author(s): 清水敏文、今田晋亮、西塚直人
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学、埼玉
• [Presentation] Development of coronal plasma in an emerging flux region (2012)
  • Author(s): Shimizu, T., Imada, S., and N. Nishizuka
  • Organizer: Spectroscopy of the Dynamic Sun
  • Place of Presentation: University College London, UK
• [Presentation] Hinode observations of microflares and plasma ejections in the solar corona (2012)
  • Author(s): Shimizu, T.
  • Organizer: 2012 US-Japan Workshop on Magnetic Reconnection
  • Place of Presentation: Princeton University, USA
• [Presentation] Emerging flux region - dynamical heating behaviors in the corona and chromosphere in response to the development of photospheric magnetic structure (2012)
  • Author(s): Shimizu, T.
  • Organizer: Hinode 6 meeting
  • Place of Presentation: University of St. Andrews, UK
• [Presentation] Hinode observations of flares and active regions during the ascending phase of solar cycle 24 (2012)
  • Author(s): Shimizu, T.
  • Organizer: GONG 2012 - LWS/SDO-5 - SOHO 27
  • Place of Presentation: Palm Cove, Australia
  • Invited
• [Presentation] 太陽フレアに関する最近の「ひので」観測Recent Hinode Observations of Solar Flares (2012)
  • Author(s): 清水 敏文、坂尾太郎、今田晋亮、渡邉恭子
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ、千葉
  • Invited
• [Presentation] 次世代太陽観測衛星SOLAR-C の最新検討状況 (2012)
  • Author(s): 清水 敏文、ほかISAS/JAXA SOLAR-C WG
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学、大分
• [Presentation] Precursor of sunspot penumbral formation discovered with Hinode SOT observation (2011)
  • Author(s): Shimizu, T., Ichimoto, K., and Suematsu, Y.
  • Organizer: HINODE-6
  • Place of Presentation: Cambridge, MA, USA
• [Presentation] Dynamic behaviors of the solar atmosphere observed with Hinode (2011)
  • Author(s): Shimizu, T.
  • Organizer: International Astrophysics Forum Alpbach (IAFA 2011)(招待講演)
  • Place of Presentation: Alpbach, Austria
• [Presentation] Hinode observations of dynamics in the solar chromsphere (2011)
  • Author(s): Shimizu, T.
  • Organizer: 11th Interrelationship between Plasma Experiments in the Laboratory and in Space(IPELS2011)(招待講演)
  • Place of Presentation: Whistler, Canada
• [Presentation] Formation of a large sunspot with dynamic activities in upper atmosphere (2011)
  • Author(s): Shimizu, T.
  • Organizer: AOGS 2011: ST 09: Solar physics with Hinode in the ascending phase of the solar cycle
  • Place of Presentation: Taipei, Taiwan
• [Presentation] Hinode observations of small-scale energy releases in the solar atmosphere (2011)
  • Author(s): Shimizu, T.
  • Organizer: International Space Plasma Symposium 2011(招待講演)
  • Place of Presentation: Tainan, Taiwan
• [Presentation] 「ひので」による黒点半暗部形成の前駆体の発見 (2011)
  • Author(s): 清水敏文、一本潔、末松芳法
  • Organizer: 日本天文学会2011年秋季年会
  • Place of Presentation: 鹿児島大学
• [Book] FIFTH HINODE SCIENCE MEETING: EXPLORING THE ACTIVE SUN (2012)
  • Author(s): Golub, L., De Moortel, I, and Shimizu, T.
  • Total Pages: 246
  • Publisher: Astronomical Society of Pacific: San Francisco
• [Remarks] 2012年3月8日に成果発表(Webリリース)を行った。
  • URL: http://solar-b.nao.ac.jp/news/120310WebRelease/