Development of MHD code coupled with time-dependent ionization

• Project/Area Number: 24740130
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: Nagoya University
• Principal Investigator: SHINSUKE Imada 名古屋大学, 太陽地球環境研究所, 助教 (40547965)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 太陽 / プラズマ / 電磁流体力学 / 電離非平衡 / 宇宙プラズマ / コロナ / 磁気リコネクション / 電離過程 / 熱的非平衡 / 天文学

Outline of Final Research Achievements

We have developed MHD code coupled with time-dependent ionization. We have studied the flare related phenomenon, such as magnetic reconnection and chromospheric evaporation with our developed code. We found that the some observational facts which could not be interpreted by usual MHD simulation can be clarify with our numerical clacuration. The view point of Thermal non-equilibrium plasma is very new in the category of solar physics. Our MHD code coupled with time-dependent ionization can open the new window in solar physics.

Research Products

• [Journal Article] Comparison between Hinode/SOT and SDO/HMI, AIA Data for the Study of the Solar Flare Trigger Process (2014)
  • Author(s): Bamba, Yumi; Kusano, Kanya; Imada, Shinsuke; Iida, Yusuke
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 66 SP1 Issue: SP1 Pages: 1-11
  • DOI: 10.1093/pasj/psu092
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Comparison between Hinode/SOT and SDO/HMI, AIA Data for the Study of the Solar Flare Trigger Process (2014)
  • Author(s): Bamba, Y., K. Kusano, S. Imada , and Y. Iida
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 66 Issue: SP1
  • DOI: 10.1093/pasj/psu091
  • Peer Reviewed
• [Journal Article] Formation of a Flare-Productive Active Region : Observation and Numerical Simulation of NOAA AR 11158 (2014)
  • Author(s): S. Toriumi, Y. Iida, K. Kusano, Y. Bamba, and S. Imada
  • Journal Title: Solar Physics Volume: 289 Issue: 9 Pages: 3351-3369
  • DOI: 10.1007/s11207-014-0502-1
  • Peer Reviewed
• [Journal Article] Comparison of Extreme Ultraviolet Imaging Spectrometer Observations of Solar Coronal Loops with Alfven Wave Turbulence Models (2014)
  • Author(s): Asgari-Targhi, M., A.A. van Ballegooijen, and S. Imada
  • Journal Title: The Astrophysical Journal Volume: 786 Issue: 1 Pages: 28-28
  • DOI: 10.1088/0004-637x/786/1/28
  • Peer Reviewed
• [Journal Article] Spectroscopic Study of a Dark Lane and a Cool Loop in a Solar Limb Active Region by Hinode/EIS (2014)
  • Author(s): Lee, K.-S., S. Imada, Y.-J. Moon, and J.-Y. Lee
  • Journal Title: The Astrophysical Journal Volume: 780 Issue: 2 Pages: 177-177
  • DOI: 10.1088/0004-637x/780/2/177
  • Peer Reviewed
• [Journal Article] Saturation of Stellar Winds from Young Suns (2013)
  • Author(s): Suzuki, T. K., Imada, S., Kataoka, R., Kato, Y., Matsumoto, T., Miyahara, H., & Tsuneta, S.
  • Journal Title: Publication of Astronomical Society of Japan Volume: 65 Issue: 5 Pages: 98-98
  • DOI: 10.1093/pasj/65.5.98
  • Peer Reviewed / Acknowledgement Compliant
• [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] The Relationship Between EUV Nonthermal Line Broadening and High-energy Particle During Solar Flare (2013)
  • Author(s): Kawate, T., and S. Imada
  • Journal Title: The Astrophysical Journal Volume: 775 Issue: 2 Pages: 122-122
  • DOI: 10.1088/0004-637x/775/2/122
  • Peer Reviewed
• [Journal Article] The soft X-ray photon-counting spectroscopic imager for the Sun (2013)
  • Author(s): Sakao, T., Narukage, N., Shimojo, M., Watanabe, K., Suematsu, Y., Imada, S., and Ishikawa, S.
  • Journal Title: Proc. SPIE Volume: 8862 Pages: 12-12
  • DOI: 10.1117/12.2024753
• [Journal Article] Magnetic Systems Triggering the M6.6 Class Solar Flare in NOAA Active Region 11158 (2013)
  • Author(s): S. Toriumi, Y. Iida, Y. Bamba, K. Kusano, S. Imada, S. Inoue
  • Journal Title: Astrophysical Journal Volume: 773 Issue: 2 Pages: 128-128
  • DOI: 10.1088/0004-637x/773/2/128
  • Peer Reviewed
• [Journal Article] Multi-wavelength Spectroscopic Observation of Extreme-ultraviolet Jet in AR 10960 (2012)
  • Author(s): Matsui, Y.; Yokoyama, T.; Kitagawa, N.; Imada, S.
  • Journal Title: The Astrophysical Journal Volume: 759 Issue: 1 Pages: 15-15
  • DOI: 10.1088/0004-637x/759/1/15
  • Peer Reviewed
• [Journal Article] Dynamical behaviors of the solar chromosphere observed with Hinode Dynamics in sunspot light bridges and magnetic reconnection processes (2012)
  • Author(s): Shimizu, T., and Imada, S.
  • Journal Title: Astrophysics and Space Science Proceedings Volume: 33 Pages: 23-23
  • Peer Reviewed
• [Journal Article] Flare Onset Observed with Hinode in the 2006 December 13 Flare (2012)
  • Author(s): Asai, A., Hara, H., Watanabe, T., and Imada, S.
  • Journal Title: ASP Conference Series Volume: 454 Pages: 303-303
• [Journal Article] Self-organization of Reconnecting Plasmas to Marginal Collisionality in the Solar Corona (2012)
  • Author(s): Imada, S.
  • Journal Title: The Astrophysical Journal Volume: 755 Issue: 2 Pages: 93-93
  • DOI: 10.1088/0004-637x/755/2/93
  • Peer Reviewed
• [Journal Article] Multi-wavelength Observations of an EUV Jet in AR 10960 (2012)
  • Author(s): Matsui, Y., Yokoyama, T., and Imada, S.
  • Journal Title: ASP Conference Series Volume: 456 Pages: 47-47
• [Journal Article] Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) (2012)
  • Author(s): 鹿野 良平
  • Journal Title: Space Telescopes and Instrumentation 2012 : Ultraviolet to Gamma Ray. Proceedings of the SPIE Volume: Vol. 8443 Pages: 84434F-84434F
  • DOI: 10.1117/12.925991
• [Journal Article] The X-ray/EUV telescope for the Solar-C mission : Science and development activities (2012)
  • Author(s): Sakao,T, Narukage,N, Imada,S, Suematsu,Y, Shimojo,M, Tsuneta,S, DeLuca,E. E, Watanabe,K, Ishikawa,S
  • Journal Title: Proc. SP1E Volume: 8443 Pages: 84430A-84430A
  • DOI: 10.1117/12.926850
• [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] 彩層蒸発流の観測と電離非平衡計算の比較研究 (2015)
  • Author(s): 今田晋亮、村上泉、渡邉鉄哉
  • Organizer: ２０１５年春季年会：日本天文学会
  • Place of Presentation: 大阪
  • Year and Date: 2015-03-18
• [Presentation] Favorable conditions for energetic ion and electron acceleration during magnetic reconnection (2014)
  • Author(s): S. Imada, M. Hirai, M. Hoshino
  • Organizer: 12th International Conference on Substorm
  • Place of Presentation: 三重
  • Year and Date: 2014-11-11
• [Presentation] Comparative Study of Hinode/EIS Spectroscopic Observation and Ionization Non-Equilibrium Calculation of Chromospheric Evaporation (2014)
  • Author(s): S. Imada, I. Murakami, T. Watanabe
  • Organizer: 2014 LWS/Hinode/IRIS workshop
  • Place of Presentation: Portland, USA
  • Year and Date: 2014-11-02
• [Presentation] Solar-Cで探る磁気リコネクションの物理 (2014)
  • Author(s): 今田晋亮
  • Organizer: ２０１４年秋季年会：日本天文学会
  • Place of Presentation: 山形
  • Year and Date: 2014-09-13
• [Presentation] Comparative Study of Hinode/EIS Spectroscopic Observation and Non-equilibrium Ionization Calculation of Hot Fast Flow Above a Solar Flare Arcade (2014)
  • Author(s): S. Imada
  • Organizer: Asia Oceania Geosciences Society (AOGS) 11th Annual Meeting
  • Place of Presentation: 北海道
  • Year and Date: 2014-07-30
  • Invited
• [Presentation] Chromospheric evaporation during solar flare: Non-equilibrium ionization calculation (2014)
  • Author(s): S. Imada
  • Organizer: US-Japan Workshop on Magnetic reconnection 2014
  • Place of Presentation: 東京
  • Year and Date: 2014-05-22
  • Invited
• [Presentation] 彩層蒸発流の電離非平衡計算 (2014)
  • Author(s): 今田晋亮、村上泉、渡邊鉄哉
  • Organizer: 日本天文学会春期年会
  • Place of Presentation: 三鷹
• [Presentation] 地球磁気圏尾部及び太陽コロナにおける粒子加速の比較研究 (2013)
  • Author(s): 今田晋亮、平井真理子、磯部洋明、渡邊恭子、 岡光夫、蓑島敬
  • Organizer: JPGU
  • Place of Presentation: 幕張
• [Presentation] Faint Young Sun Paradoxへの天文学的アプローチ (2013)
  • Author(s): 今田晋亮 、 片岡 龍峰、鈴木 建、 宮原 ひろ子、常田 佐久
  • Organizer: JPGU
  • Place of Presentation: 幕張
• [Presentation] Radiation from Magnetic Reconnection Region: Solar Corona & Lab. Plasma (2013)
  • Author(s): Shinsuke Imada, Murakami I., Watanabe T., Hara H., Shimizu T., Kamio S., Inomoto M., Ono Y.
  • Organizer: IPELS
  • Place of Presentation: 白馬
  • Invited
• [Presentation] 天文学的視点から見たFaint Young Sun Paradox (2013)
  • Author(s): 今田晋亮 、 片岡 龍峰、鈴木 建、 宮原 ひろ子、常田 佐久
  • Organizer: 日本天文学会秋期年会
  • Place of Presentation: 仙台
• [Presentation] 磁気リコネクションにおける高エネルギー電子加速が起きやすい条件 (2013)
  • Author(s): 今田晋亮、平井真理子、星野真弘、向井利典
  • Organizer: 地球電磁気・地球惑星圏学会
  • Place of Presentation: 高知
• [Presentation] Coronal Behaviors before the Large Flare Onset (2013)
  • Author(s): Shinsuke Imada, Yumi Bamba, Kanya Kusano
  • Organizer: Hinode 7
  • Place of Presentation: 高山
• [Presentation] Coronal Signatures before the Large Flare Onset (2013)
  • Author(s): Shinsuke Imada, Yumi Bamba, Kanya Kusano
  • Organizer: CAWSESII
  • Place of Presentation: 名古屋
• [Presentation] Energetic particles in the Earth’s magnetotail observed by GEOTAIL (2012)
  • Author(s): Imada, S.
  • Organizer: GEOTAIL 20th Anniversary Workshop
  • Place of Presentation: Tokyo Institute of Technology
• [Presentation] リムXクラスフレアにおけるEISで観測した高速流 (2012)
  • Author(s): 今田晋亮、青木邦哉 (東大)、原弘久、渡邊鉄哉、Harra L. K.、清水敏文
  • Organizer: ２０１２年日本天文学会秋期年会
  • Place of Presentation: 大分大学
• [Presentation] Self-organization of Reconnecting Plasmas to a Marginally Collisionless State (2012)
  • Author(s): Imada S., and Zweibel E. G.
  • Organizer: US-Japan Workshop on Magnetic Reconnection 2012
  • Place of Presentation: Univ. Princeton
  • Invited
• [Presentation] High-Speed Plasma Flows Observed by EIS During X-class Limb Flare (2012)
  • Author(s): Imada S., Aoki K., Hara H., Watanabe T., Harra L. K., and Shimizu T.
  • Organizer: Hinode 6th Meeting
  • Place of Presentation: St. Andrews, Scotland