Observation-based MHD modeling of active phenomena on the Sun

• Project/Area Number: 19740101
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: MAGARA Tetsuya National Astronomical Observatory of Japan, ひので科学プロジェクト, 研究員 (00437196)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,220,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥420,000); Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2007: ¥1,400,000 (Direct Cost: ¥1,400,000)
• Keywords: 宇宙科学 / 計算物理 / 自然現象観測・予測 / 太陽物理学 / モデル化

Research Abstract

We have performed numerical simulations focused on active phenomena observed by Hinode to investigate physical mechanisms for producing those phenomena. We obtained a new view about the formation and diffusion of sunspot magnetic field, the evolution of emerging magnetic field, and the characteristics of a flare-producing active region.

Research Products

• [Journal Article] Characteristic Development of Magnetic Shear in a Flare-producing Sunspot Obtained from Vector Magnetic Field Measurements by Hinode (2009)
  • Author(s): Magara, T.
  • Journal Title: Astrophysical Journal 702 Pages: 386-386
• [Journal Article] Saturation of Magnetic Helicity as an Indicator of the Possible Occurrence of a Solar Flare (2009)
  • Author(s): Magara, T.
  • Journal Title: The Second Hinode Science Meeting 415 Pages: 439-442
• [Journal Article] Plasma ejections and shock waves in the solar atmosphere (2008)
  • Author(s): Magara, T., Shibata, K.
  • Journal Title: Journal of Atmospheric and Solar-Terrestrial Physics 70 Pages: 546-546
• [Journal Article] Emergence of a Partially Split Flux Tube into the Solar Atmosphere (2008)
  • Author(s): Magara, T.
  • Journal Title: Publications of the Astronomical Society of Japan 60 Pages: 809-809
  • NAID: 10023954126
• [Journal Article] Investigation into the Subsurface Magnetic Structure in an Emerging Flux Region on the Sun Based on a Comparison between Hinode's Observations and Numerical Simulations (2008)
  • Author(s): Magara, T.
  • Journal Title: Astrophysical Journal 685
• [Journal Article] Hinode's Observational Result on the Saturation of Magnetic Helicity Injected into the Solar Atmosphere and Its Relation to the Occurrence of a Solar Flare (2008)
  • Author(s): Magara, T., Tsuneta, S.
  • Journal Title: Publications of the Astronomical Society 60 Pages: 1181-1181
  • NAID: 10023955344
• [Journal Article] Investigation into the Subsurface Magnetic Structure in an Emerging Flux Region on the Sun Based on a Comparison between Hinode's Observations and Numerical Slmulations (2008)
  • Author(s): Magara, T.
  • Journal Title: Astrophysical Journal 685 Pages: 91-94
  • Peer Reviewed
• [Journal Article] Hinode's Ohservational Result on the Saturation of Magnetic Helicity Injected into the Solar Atmosphere and Its Relation to the Occurrence of a Solar Flare (2008)
  • Author(s): Magara, T., Tsuneta, S.
  • Journal Title: Publications of the Astromonical Society 60 Pages: 1181-1189
  • Peer Reviewed
• [Journal Article] Evolution of Magnetic Field and Flow in NOAA10930 Obtained by Hinode Observations (2008)
  • Author(s): Magara, T., Katsukawa, Y., Ichimoto, K., Tsuneta, S., Yokoyama, T., Nagata, S., Inoue. S.
  • Journal Title: First Results from Hinode, ASPCS 397 397 Pages: 135-138
• [Journal Article] A possible structure of the magnetic field in solar filaments obtained by flux emergence (2007)
  • Author(s): Magara, T.
  • Journal Title: Publications of the Astronomical Society of Japan 59
  • NAID: 10023947579
• [Journal Article] Flux cancellation associated with flux emergence on the Sun (2007)
  • Author(s): Magara, T.
  • Journal Title: New Solar Physics with Solar-B Mission, The sixth Solar-B Science Meeting, ASPCS 369 Pages: 367-370
  • Peer Reviewed
• [Presentation] Dynamics of Coronal Mass Ejections (2009)
  • Author(s): Magara, T.
  • Organizer: The 3^<rd> Hinode Science Meeting
  • Place of Presentation: 東京
  • Year and Date: 2009-12-04
• [Presentation] Solar penumbral jetsにみる太陽面磁場のトポロジーと活動性の関係～モデル化の取り組み～ (2009)
  • Author(s): Magara, T.
  • Organizer: 第3回「太陽コロナ活動の室内再現実験」研究会
  • Place of Presentation: 東京大学柏キャンパス
  • Year and Date: 2009-11-14
• [Presentation] Solar penumbral jets にみる太陽面磁場のトポロジーと活動性の関係～モデル化の取り組み～ (2009)
  • Author(s): Magara, T.
  • Organizer: 第3回「太陽コロナ活動の室内再現実験」研究会
  • Place of Presentation: 東京大学柏キャンパス
  • Year and Date: 2009-11-14
• [Presentation] Solar penumbral jetsにみる太陽面磁場のトポロジーと活動性の関係～モデル化に向けた考察～ (2009)
  • Author(s): Magara, T.
  • Organizer: 第2回「太陽コロナ活動の室内再現実験」研究会
  • Place of Presentation: 清泉寮、山梨県
  • Year and Date: 2009-10-01
• [Presentation] Solar penumbral jets にみる太陽面磁場のトポロジーと活動性の関係～モデル化に向けた考察～ (2009)
  • Author(s): Magara, T.
  • Organizer: 第2回「太陽コロナ活動の室内再現実験」研究会
  • Place of Presentation: 清泉寮、山梨県
  • Year and Date: 2009-10-01
• [Presentation] Characteristic development of magnetic shear in a flare-producing sunspot obtained from vector magnetic-field measurements by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: 2009 UN BSS & IHY Workshop
  • Place of Presentation: Daejeon, Korea
  • Year and Date: 2009-09-24
• [Presentation] Characteristic Development of Magnetic Shear in a Flare-producing Sunspot Obtained from Vector Magnetic-field Measurements by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: 2009 UN BSS & IHY Workshop
  • Place of Presentation: Daejeon, Korea
  • Year and Date: 2009-09-24
• [Presentation] Characteristic development of magnetic shear structure in a flare-productive sunspot obtained from vector magnetic-field measurements by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 山口大学
  • Year and Date: 2009-09-15
• [Presentation] Characteristic Development of Magnetic Shear Structure in a Flare-productive Sunspot Obtained from Vector Magnetic-field Measurements by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: 秋季天文学会
  • Place of Presentation: 山口大学
  • Year and Date: 2009-09-15
• [Presentation] Characteristic development of magnetic shear in a flare-productive sunspot obtained by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: AOGS 2009
  • Place of Presentation: Singapore
  • Year and Date: 2009-08-13
• [Presentation] Characteristic Development of Magnetic Shear in a Flare-productive Sunspot Obtained by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: AOGS 2009
  • Place of Presentation: Singapore
  • Year and Date: 2009-08-13
• [Presentation] ひのでが解き明かす最新の太陽像 (2009)
  • Author(s): Magara, T.
  • Organizer: シンポジウム「太陽活動と地球環境」
  • Place of Presentation: 慶応大学
  • Year and Date: 2009-07-22
• [Presentation] Solar penumbral jetsにみる太陽面磁場のトポロジーと活動性の関係 (2009)
  • Author(s): Magara, T.
  • Organizer: 太陽コロナ活動の室内再現実験研究会
  • Place of Presentation: 東京大学柏キャンパス
  • Year and Date: 2009-05-30
• [Presentation] Solar penumbral jets にみる太陽面磁場のトポロジーと活動性の関係 (2009)
  • Author(s): Magara, T.
  • Organizer: 太陽コロナ活動の室内再現実験研究会
  • Place of Presentation: 東京大学柏キャンパス
  • Year and Date: 2009-05-30
• [Presentation] Characteristic development of magnetic shear in a flare-productive sunspot obtained from the vector-field observations of photospheric magnetic field by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: Japan Geoscience Union, Spring Meeting
  • Place of Presentation: 幕張
  • Year and Date: 2009-05-16
• [Presentation] Characteristic Development of Magnetic Shear in a Flare-productive Sunspot Obtained from the Vector-field Observations of Photospheric Magnetic Field by Hinode (2009)
  • Author(s): Magara, T.
  • Organizer: Japan Geoscience Union, Spring Meeting
  • Place of Presentation: 幕張
  • Year and Date: 2009-05-16
• [Presentation] Solar penumbral jetsにみる太陽面磁場のトポロジーと活動性の関係 (2009)
  • Author(s): Magara, T.
  • Organizer: 第64回物 理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-29
• [Presentation] Solar penumbral jetsにみる太陽面磁場のトポロジーと活動性の関係 (2009)
  • Author(s): Magara, T.
  • Organizer: 第64回物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-29
• [Presentation] 太陽黒点上空で見られるpenumbral microjetのMHDモデル (2009)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2009-03-24
• [Presentation] 太陽黒点上空で見られるpenumbral microletのMHDモデル (2009)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2009-03-24
• [Presentation] 太陽フレアにみる磁気エネルギーの注入および不安定化に伴うエネルギー解放過程 (2009)
  • Author(s): Magara, T.
  • Organizer: 宇宙プラズマ爆発現象研究会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2009-03-12
• [Presentation] 太陽フレアに見る磁気エネルギーの注入及び不安定化に伴うエネルギー解放過程 (2009)
  • Author(s): Magara, T.
  • Organizer: 宇宙プラズマ爆発現象研究会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2009-03-10
• [Presentation] ひのでで見えてきた太陽の乱流構造 (2009)
  • Author(s): Magara, T.
  • Organizer: 統計数理研共同研究集会
  • Place of Presentation: 統計数理研(広尾)
  • Year and Date: 2009-03-10
• [Presentation] 分裂性磁束官の浮上による太陽面現象の駆動過程 (2008)
  • Author(s): Magara, T.
  • Organizer: 第21回理論天文学懇談会
  • Place of Presentation: 国立天文台(三鷹)
  • Year and Date: 2008-12-15
• [Presentation] 分裂性磁束管の浮上による太陽面現象の駆動過程 (2008)
  • Author(s): Magara, T.
  • Organizer: 第21回理論天文学懇談会
  • Place of Presentation: 国立天文台(三鷹)
  • Year and Date: 2008-12-15
• [Presentation] Toward understanding 3D and dynamic nature of solar prominences (2008)
  • Author(s): Magara, T.
  • Organizer: Solar Activity in Solar Cycle 24
  • Place of Presentation: Napa, USA
  • Year and Date: 2008-12-10
• [Presentation] Emergence of a partially split flux tube into the solar atmosphere (2008)
  • Author(s): Magara, T.
  • Organizer: 2008 Huntsville Workshop
  • Place of Presentation: Huntsville, USA
  • Year and Date: 2008-10-29
• [Presentation] Emergence of a Partially Split Flux Tube into the Solar Atmosphere (2008)
  • Author(s): Magara, T.
  • Organizer: 2008 Huntsville Workshop
  • Place of Presentation: Huntsville, USA
  • Year and Date: 2008-10-29
• [Presentation] What do we learn from the flux emergence study based on a comparison between simulations and observations? II (2008)
  • Author(s): Magara, T.
  • Organizer: 2008 Flux Emergence Workshop
  • Place of Presentation: 京都
  • Year and Date: 2008-10-07
• [Presentation] Hinode's observational result on the saturation of magnetic helicity injected into the solar atmosphere and its relation to the occurrence of a solar flare (2008)
  • Author(s): Magara, T.
  • Organizer: 2nd Hinode Science Meeting
  • Place of Presentation: Boulder, USA
  • Year and Date: 2008-10-03
• [Presentation] Hinode's Observational Result on the Saturation of Magnetic Helicity Injected into the Solar Atmosphere and Its Relation to the Occurrence of a Solar Flare (2008)
  • Author(s): Magara, T.
  • Organizer: 2nd Hinode Science Meeting
  • Place of Presentation: Boulder, USA
  • Year and Date: 2008-10-03
• [Presentation] Fragmented magnetic features subject to magnetoconvection in an emerging flux region on the Sun observed by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-12
• [Presentation] A magnetic reconnection model for solar penumbral microjets discovered by Hinode (2008)
  • Author(s): Magara, T., Shibata, K.
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-12
• [Presentation] Fragmented Magnetic Features Subject to Magnetoconvection in an Emerging Flux Region on the Sun Observed by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-12
• [Presentation] New view of the Sun revealed by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: AYAM2008
  • Place of Presentation: 中国、嘉峪関
  • Year and Date: 2008-07-27
• [Presentation] New view of the Sun revealed by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: EAYAM2008
  • Place of Presentation: 嘉硲関, 中国
  • Year and Date: 2008-07-27
• [Presentation] A Model for a Flare-productive region on the Sun Obtained by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: Japan Geoscience Union, Spring Meeting
  • Place of Presentation: 幕張
  • Year and Date: 2008-05-28
• [Presentation] A model for a flare-productive region on the Sun obtained by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: Japan Geoscience Union, Spring Meeting
  • Place of Presentation: 幕張
  • Year and Date: 2008-05-27
• [Presentation] The property of helicity and current in a flare-productive active region obtained by Hinode (2008)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 東京、代々木
  • Year and Date: 2008-03-25
• [Presentation] Hinodeがもたらす新しい太陽像 (2007)
  • Author(s): Magara, T.
  • Organizer: 地文台によるサイエンス
  • Place of Presentation: 甲南大学
  • Year and Date: 2007-12-09
• [Presentation] An investigation into the initiation mechanism of a solar flare based on the observed nature of photospheric magnetic field (2007)
  • Author(s): Magara, T.
  • Organizer: International CAWSES Symposium
  • Place of Presentation: Kyoto, Japan
  • Year and Date: 2007-10-23
• [Presentation] An investigation into the initiation mechanism of a solar flare based on the observations of photospheric magnetic fields by Hinode (2007)
  • Author(s): Magara, T.
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-27
• [Presentation] Sunspot motion and its relation to activity observed in NOAA10930 (2007)
  • Author(s): Magara, T., et al.
  • Organizer: Hinode Science Meeting
  • Place of Presentation: Dublin, Ireland
  • Year and Date: 2007-08-24
• [Presentation] What do we learn from the flux emergence study based on the comparison between simulations and observations? (2007)
  • Author(s): Magara, T.
  • Organizer: Structure and Dynamics of Solar Magnetic Fields
  • Place of Presentation: St. Andrews, UK
  • Year and Date: 2007-06-13
• [Presentation] Hinodeがもたらす新たな太陽像 (2007)
  • Author(s): Magara, T
  • Organizer: 地文台によるサイエンス
  • Place of Presentation: 甲南大学
• [Remarks]
  • URL: http://web.khu.ac.kr/~magara/
• [Remarks]
  • URL: http://web.khu.ac.kr/~magara/