Non-equilibrium ionization plasma dynamics in solar flare

• Project/Area Number: 21840062
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Japan Aerospace Exploration Agency
• Principal Investigator: IMADA Shinsuke Japan Aerospace Exploration Agency, 宇宙科学研究所, 宇宙航空プロジェクト研究員 (40547965)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥2,704,000 (Direct Cost: ¥2,080,000、Indirect Cost: ¥624,000); Fiscal Year 2010: ¥1,287,000 (Direct Cost: ¥990,000、Indirect Cost: ¥297,000); Fiscal Year 2009: ¥1,417,000 (Direct Cost: ¥1,090,000、Indirect Cost: ¥327,000)
• Keywords: 太陽物理学 / 宇宙プラズマ / 電離非平衡 / プラズマ加熱 / 太陽フレア / 磁気リコネクション

Research Abstract

We have studied the effect of time-dependent ionization and recombination processes on the solar flare. We found that ion is mostly in non-equilibrium ionization in the solar flare. This result indicates that the interpretations of observations with the assumption of ionization equilibrium need some modification.

Research Products

• [Journal Article] The Solar Source of a Magnetic Cloud Using a Velocity Difference Technique (2011)
  • Author(s): Harra L.K., Mandrini C.H., Dasso S., Gulisano A.M., Steed K., Imada S.
  • Journal Title: Solar Physics Volume 268, Issue 1 Pages: 213-230
  • Peer Reviewed
• [Journal Article] Magnetic Reconnection in the Solar Atmosphere observed by Hinode (2011)
  • Author(s): Imada S., Isobe, H., Shimizu, T.
  • Journal Title: The Sun, the Solar Wind, and the Heliosphere (IAGA Special Sopron Book Series) Vol 4 Pages: 63-72
  • Peer Reviewed
• [Journal Article] The Solar Source of a Magnetic Cloud Using a Velocity Difference Technique (2011)
  • Author(s): Harra L, et al.
  • Journal Title: Solar Physics Volume: 268 Pages: 213-230
  • Peer Reviewed
• [Journal Article] Magnetic Reconnection in the Solar Atmosphere observed by Hinode (2011)
  • Author(s): Imada S, et al.
  • Journal Title: IAGA Special Sopron Book Series Volume: 4 Pages: 63-72
  • Peer Reviewed
• [Journal Article] On the Origin of the Solar Moreton Wave of 2006 December 6 (2010)
  • Author(s): Balasubramaniam K.S., Cliver E.W., Pevtsov A., Temmer M., Henry T.W., Hudson H.S., Imada S., Ling A.G., Moore R.L., Muhr N., Neidig D.F., Petrie G.J.D, Veronig A.M., Vrsnak B., White S.M.
  • Journal Title: The Astrophysical Journal Volume 723, Issue 1 Pages: 587-601
  • Peer Reviewed
• [Journal Article] 観測望遠鏡用の高頻度回転駆動機構の開発 (2010)
  • Author(s): 清水敏文、今田晋亮、渡邉恭子、梶田直希、田島崇男、小川智也、平田晋吾、坂東貴政、常田佐久、小原新吾、鈴木峰男、川島教嗣
  • Journal Title: 第54回宇宙科学技術連合講演会論文集 3G02
• [Journal Article] Mode identification of MHD waves in an active region observed with Hinode/EIS (2010)
  • Author(s): Kitagawa N., Yokoyama T., Imada S., Hara H.
  • Journal Title: The Astrophysical Journal Volume 721, Issue 1 Pages: 744-749
  • Peer Reviewed
• [Journal Article] Accelerating Waves in Polar Coronal Holes as Seen by EIS and SUMER (2010)
  • Author(s): Gupta G.R., Banerjee D., Teriaca L., Imada S., Solanki S.
  • Journal Title: The Astrophysical Journal Volume 718, Issue 1 Pages: 11-22
  • Peer Reviewed
• [Journal Article] On the Origin of the Solar Moreton Wave of 2006 December 6 (2010)
  • Author(s): Balasubramaniam K.S., et al.
  • Journal Title: The Astrophysical Journal Volume: 723 Pages: 587-601
  • Peer Reviewed
• [Journal Article] Mode identification of MHD waves in an active region observed with Hinode/EIS (2010)
  • Author(s): Kitagawa N., et al.
  • Journal Title: The Astrophysical Journal Volume: 721 Pages: 744-749
  • Peer Reviewed
• [Journal Article] Accelerating Waves in Polar Coronal Holes as Seen by EIS and SUMER (2010)
  • Author(s): Gupta G.R., et al.
  • Journal Title: The Astrophysical Journal Volume: 718 Pages: 11-22
  • Peer Reviewed
• [Journal Article] Ion Temperature and Non-thermal Velocityin a Solar Active Region : Using Emission Lines of Different Atomic Species (2009)
  • Author(s): Imada S., Hara, H., Watanabe, T.
  • Journal Title: The Astrophysical Journal Vol.705, Issue 2 Pages: 208-212
  • Peer Reviewed
• [Journal Article] Favorable conditions for energetic electron acceleration during magnetic reconnection in the Earth's magnetotail
  • Author(s): Imada, S. ; Hirai, M., Hoshino, M., Mukai T.
  • Journal Title: Journal of Geophysical Research, accepted
  • Peer Reviewed
• [Journal Article] Two Types of EUV Brightenings in AR 10926 Observed by Hinode/EIS
  • Author(s): Lee K.-S., Moon Y.-J., Kim S., Choe G.S., Cho K.-S., Imada S.
  • Journal Title: The Astrophysical Journal, accepted
  • Peer Reviewed
• [Journal Article] 高信頼性回転駆動機構開発のためのグリース潤滑剤アウトガス評価
  • Author(s): 今田晋亮、清水敏文、渡辺恭子、坂東貴政、常田佐久、原弘久
  • Journal Title: 宇宙航空研究開発機構研究開発報告 (掲載決定)
  • NAID: 110008456593
  • Peer Reviewed
• [Journal Article] Morphology, dynamics and plasma parameters of plumes and inter-plume regions in solar coronal holes
  • Author(s): Wilhelm K., Abbo L., Auchere F., Barbey N., Feng L., Gabriel A.H., Giordano S., Imada S., Llebbaria A., Matthaeus W.H., Poletto G., Raouafi N.-E., Suess S.T., Teriaca L., Wang Y.-M.
  • Journal Title: Astronomy and Astrophysics Review, accepted
  • Peer Reviewed
• [Presentation] Comparison of reconnection in magnetosphere and solar corona (2011)
  • Author(s): Imada, S., Hirai M., Isobe H., Oka M., Watanabe K., Minoshima T.
  • Organizer: COSPAR 2010
  • Place of Presentation: Bremen, Germany
  • Year and Date: 2011-07-22
• [Presentation] Ionization non-equilibrium plasma during magnetic reconnection in solarcorona (2010)
  • Author(s): Imada S., et al.
  • Organizer: American Geophysical Union, Fall Meeting 2010
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2010-12-14
• [Presentation] Energetic electron acceleration in the reconnection region in the Earth smagnetosphere (2010)
  • Author(s): Imada S., et al.
  • Organizer: US-Japan Workshop on Magnetic Reconnection
  • Place of Presentation: Nara, Japan
  • Year and Date: 2010-12-09
• [Presentation] Magnetic reconnection in ionization non-equilibrium plasma (2010)
  • Author(s): Imada S., et al.
  • Organizer: Fourth Hinode Meeting
  • Place of Presentation: Palelmo, Italy
  • Year and Date: 2010-10-11
• [Presentation] 電離非平衡プラズマからの幅射エネルギー損失 (2010)
  • Author(s): 今田晋亮, 他
  • Organizer: 日本天文学会2010年秋季年会
  • Place of Presentation: 金沢大学、金沢
  • Year and Date: 2010-09-23
• [Presentation] 高頻度動作が可能な高信頼性回転駆動機構の国内開発:グリース潤滑剤アウトガス評価 (2010)
  • Author(s): 今田晋亮, 他
  • Organizer: 日本天文学会2010年秋季年会
  • Place of Presentation: 金沢大学、金沢
  • Year and Date: 2010-09-23
• [Presentation] Comparison of reconnection in magnetosphere and solar corona (2010)
  • Author(s): Imada S., et al.
  • Organizer: COSPAR 2010
  • Place of Presentation: Bremen, Germany(招待講演)
  • Year and Date: 2010-07-22
• [Presentation] Comparison study of magnetic reconnection in magnetosphere and solar corona (2010)
  • Author(s): Imada, S., Hirai M., Isobe H., Oka M., Watanabe K., Minoshima T.
  • Organizer: International Space Plasma Symposium 2010
  • Place of Presentation: Tainan, Taiwan
  • Year and Date: 2010-06-28
• [Presentation] Comparison study of magnetic reconnection in magnetosphere and solarcorona (2010)
  • Author(s): Imada S., et al.
  • Organizer: International Space Plasma Symposium 2010
  • Place of Presentation: Taiwan, Taiwan(招待講演)
  • Year and Date: 2010-06-28
• [Presentation] 太陽コロナ中でのイオン温度とコロナ加熱 (2010)
  • Author(s): 今田晋亮, 他
  • Organizer: 第127回地球惑星関連学会合同大会
  • Place of Presentation: 幕張、千葉
  • Year and Date: 2010-05-26
• [Presentation] Magnetic Reconnection in Solar Atmosphere observed by Hinode (2009)
  • Author(s): Imada, S.
  • Organizer: US-Japan Workshop on Magnetic Reconnection
  • Place of Presentation: Wisconsin, USA
  • Year and Date: 2009-10-05
• [Presentation] Magnetic Reconnection in Solar Atmosphere (2009)
  • Author(s): Imada, S.
  • Organizer: IAGA 11th Scientific Assembly
  • Place of Presentation: Sopron, Hungary
  • Year and Date: 2009-08-25
• [Remarks] ホームページ等