Studies on the Process of Magnetic Energy Build-up in Solar Flares by Using an Infrared Detector

• Project/Area Number: 17204014
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: SAKURAI Takashi National Astronomical Observatory of Japan, 太陽天体プラズマ研究部, 教授 (40114491)
• Co-Investigator(Kenkyū-buntansha): SHINODA Kazuya 国立天文台, 太陽天体プラズマ研究部, 主任技術員 (50413977) ; HANAOKA Youichirou 国立天文台, 太陽天体プラズマ研究部, 准教授 (10238040) ; FUKUDA Takeo 国立天文台, 先端技術センター, 技術員 (10465924) ; NISHINO Youhei 国立天文台, 太陽天体プラズマ研究部, 主任研究技師 (40189296) ; MIYASHITA Masakuni 国立天文台, 太陽天体プラズマ研究部, 研究技師 (50209904) ; TANAKA Nobuyuki 国立天文台, 太陽天体プラズマ研究部, 主任技術員 (60413978)
• Co-Investigator(Renkei-kenkyūsha): NISHINO Youhei 国立天文台, 太陽天体プラズマ研究部, 主任研究技師 (40189296) ; MIYASHITA Masakuni 国立天文台, 太陽天体プラズマ研究部, 研究技師 (50209904) ; TANAKA Nobukuni 国立天文台, 太陽天体プラズマ研究部, 主任技術員 (60413978)
• Project Period (FY): 2005 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥48,360,000 (Direct Cost: ¥37,200,000、Indirect Cost: ¥11,160,000); Fiscal Year 2008: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2007: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000); Fiscal Year 2006: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000); Fiscal Year 2005: ¥28,730,000 (Direct Cost: ¥22,100,000、Indirect Cost: ¥6,630,000)
• Keywords: 太陽 / 周期活動 / 黒点 / 磁場 / 太陽フレア / 磁気ヘリシティ / 観測装置 / 赤外線

Research Abstract

太陽のフレア爆発は、大気内に蓄積された磁気エネルギーが急激に解放される現象である。従ってフレアのエネルギー蓄積機構の研究には、太陽磁場の精密測定が不可欠である。可視光に比べて3倍程度の高感度を達成できる、赤外線領域で動作する太陽磁場観測装置を開発した。波長1.56μmで太陽表面(光球)、波長1.083μmで上層(彩層)の磁場を観測でき、黒点の磁場やプロミネンスの観測で性能を実証した。

Research Products

• [Journal Article] On the Solar Cycle Variation of the Hemispheric Helicity Rule (2008)
  • Author(s): A.A.Pevtsov, R.C.Canfield, T.Sakurai, M.Hagino
  • Journal Title: Astrophysical Journal 677巻 Pages: 719-722
  • Peer Reviewed
• [Journal Article] Correlations between Flare Parameters and Magnetic Parameters in Solar Flares (2008)
  • Author(s): T.T.Yamamoto, T.Sakurai
  • Journal Title: Publications of the Astronomical Society of Japan 61巻 Pages: 75-84
  • NAID: 10025597668
  • Peer Reviewed
• [Journal Article] Suppression of Convection around Small Magnetic Concentrations (2008)
  • Author(s): S. Morinaga, 他
  • Journal Title: Astron. Astrophys. 481
  • Peer Reviewed
• [Journal Article] On the Solar Cycle Variation of the Hemispheric Helicity Rule (2008)
  • Author(s): A. A. Pevtsov, 他
  • Journal Title: Astrophys. J. 677 Pages: 719-722
  • Peer Reviewed
• [Journal Article] Determination of Magnetic Diffusivity from High-Resolution Solar Magnetograms (2008)
  • Author(s): J. C. Chae, 他
  • Journal Title: Astrophys. J. 683 Pages: 1153-1159
  • Peer Reviewed
• [Journal Article] Three-Dimensional structure Analysis of Coronal Magnetic Field in AR NOAA 10930 Based on Vector Magnetogram Observations with Hinode/SOT (2008)
  • Author(s): S. Inoue, 他
  • Journal Title: Astron. Soc. Pacific Conference Series 397 Pages: 110-114
• [Journal Article] Radio Bursts Associated with Flare and Ejecta in the 13 July 2004 Event (2008)
  • Author(s): S. Pohjolainen, 他
  • Journal Title: Solar Phys. 253 Pages: 291-303
  • Peer Reviewed
• [Journal Article] A Test of Three Optical Flow Techniques-LCT, DAVE, and NAVE (2008)
  • Author(s): J. C. Chae, T. Sakurai
  • Journal Title: Astrophys. J. 689 Pages: 593-612
  • Peer Reviewed
• [Journal Article] Persistent Horizontal Flows and Magnetic Support of Vertical Threads in a Quiescent Prominence (2008)
  • Author(s): J. C. Chae, 他
  • Journal Title: Astrophys. J. 689
  • Peer Reviewed
• [Journal Article] Correlations between Flare Parameters and Magnetic Parameters in Solar Flares (2008)
  • Author(s): T. T. Yamamoto, T. Sakurai
  • Journal Title: Publ. Astron. Soc. Japan 61 Pages: 75-84
  • NAID: 10025597668
  • Peer Reviewed
• [Journal Article] Optical Characteristics of the Soft X-Ray Telescope Aboard Yohkoh. I. Interpretation of the Undersampled Point Spread Function (2008)
  • Author(s): J. Shin, T. Sakurai
  • Journal Title: Solar Phys. 254 Pages: 357-384
  • Peer Reviewed
• [Journal Article] "A New Magnetograph System for the Observation of the Multi-Height Vector Magnetic Field of the Sun (2007)
  • Author(s): Y.Hanaoka
  • Journal Title: Advances in Space Research 39巻 Pages: 1730-1733
  • Peer Reviewed
• [Journal Article] Helicity Comparison among Three Magnetographs (2007)
  • Author(s): H.Xu, Y.Gao, H.Zhang, T.Sakurai, A.A.Pevtsov, D.Sokoloff
  • Journal Title: Advances in Space Research 39巻 Pages: 1715-1722
  • Peer Reviewed
• [Journal Article] Center-to-Limb Variation of Stokes V Asymmetries in Solar Pores Observed with the Spectro-Polarimeter (2007)
  • Author(s): S. Morinaga, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Response of the Solar Atmosphere to Magnetic Flux Emergence from Hinode Observations (2007)
  • Author(s): H. Li, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Initial Results on Line-of-Sight Field Calibrations of SP/NFI Data Taken by SOT/Hinode (2007)
  • Author(s): J.C. Chae, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Hinode SP Vector Magnetogram of AR10930 and Its Cross-Comparison with MDI (2007)
  • Author(s): Y. J. Moon, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Small-Scale X-ray/EUV Jets Seen in Hinode XRT and TRACE (2007)
  • Author(s): Y. H. Kim, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Two-Step Reconnections in a C3.3 Flare and Its Preflare Activity Observed by Hinode XRT (2007)
  • Author(s): S. Kim, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Diagnostics of Radio Fine Structures around 3 GHz with Hinode Data in the Impulsive Phase of an X3.4/4B Flare Event on 2006 December 13 (2007)
  • Author(s): Y. H. Yan, 他
  • Journal Title: Publ. Astron. Soc. Japan 59
  • Peer Reviewed
• [Journal Article] Magnetic Nature of Coronal Loops (2007)
  • Author(s): J. Singh, 他
  • Journal Title: Bull. Astron. Soc. India 35 Pages: 437-445
  • Peer Reviewed
• [Journal Article] Fe XIV Green/Fe XIII Infrared Line Ratio Diagnostics (2007)
  • Author(s): A. K. Srivastava, 他
  • Journal Title: Bull. Astron. Soc. India 35 Pages: 457-463
  • Peer Reviewed
• [Journal Article] A Solar Neutron Telescope in Tibet and its Capability Examined by the 1998 November 28th Event (2007)
  • Author(s): Y. Muraki, 他
  • Journal Title: Astroparticle Phys. 28 Pages: 119-131
  • Peer Reviewed
• [Journal Article] Helicity Comparison among Three Magnetographs (2007)
  • Author(s): H. Xu, 他
  • Journal Title: Adv. Space Res. 39(11) Pages: 1715-1722
  • Peer Reviewed
• [Journal Article] Skew Angle and Magnetic Helicity in Solar Active Regions (2007)
  • Author(s): M. Hagino, 他
  • Journal Title: Astron. Soc. Pacific Conf Ser. 369 Pages: 163-166
• [Journal Article] Helicity Injection in Regions of Various Magnetic Fluxes (2007)
  • Author(s): T. T. Yamamoto, 他
  • Journal Title: Astron. Soc. Pacific Conf. Ser. 369 Pages: 179-182
• [Journal Article] Flare-Associated Oscillations in Coronal Multiple-Loops Observed with the Norikura Green-Line Imaging System (2007)
  • Author(s): K. Hori, 他
  • Journal Title: Astron. Soc. Pacific Conf. Ser. 369 Pages: 213-220
• [Journal Article] Three-Dimensional Filament Eruption Driven by an Emerging Flux (2007)
  • Author(s): S. Notoya, 他
  • Journal Title: Astron. Soc. Pacific Conf. Ser. 369 Pages: 381-384
• [Journal Article] Observation of a Coronal Mass Ejection and its Source Region with NOrikura Green-line Imaging System (NOGIS) (2007)
  • Author(s): I. Suzuki, 他
  • Journal Title: Astron. Soc. Pacific Conf. Ser. 369 Pages: 543-546
• [Journal Article] Two Fundamental MHD Problems in Solar Physics (2007)
  • Author(s): T. Sakurai
  • Journal Title: Astron. Soc. Pacific Conf. Ser. 369 Pages: 587-592
• [Journal Article] High-Precision Imaging Polarimetry in the Hα Line (2006)
  • Author(s): Y.Hanaoka
  • Journal Title: Astronomical Society of the Pacific Conference Series 358 Pages: 185-185
• [Journal Article] Hα Polarimetry as a Probe of Chromospheric Magnetic Fields (2006)
  • Author(s): Y.Hanaoka
  • Journal Title: Astronomical Society of the Pacific Conference Series 354 Pages: 324-324
• [Journal Article] Study of Microflares through SOXS Mission (2006)
  • Author(s): R.Jain
  • Journal Title: Journal of Astrophysics and Astronomy 27 Pages: 339-339
• [Journal Article] Spectroscopic Studies of Solar Corona VI (2006)
  • Author(s): J.Singh
  • Journal Title: Journal of Astrophysics and Astronomy 27 Pages: 115-115
• [Journal Article] Spectroscopic Studies of Solar Corona VIII. (2006)
  • Author(s): J.Singh
  • Journal Title: Soar Physics 236 Pages: 245-245
• [Journal Article] Observation of CMEs with NOrikura Green-line Imaging System (NOGIS) (2006)
  • Author(s): I.Suzuki
  • Journal Title: Publications of the Astronomical Society of Japan 58 Pages: 165-175
• [Journal Article] Do the Line-Widths of Coronal Emission Lines Increase with Height above the Limb? (2006)
  • Author(s): J.Singh
  • Journal Title: Astrophysical Journal 639 Pages: 475-483
• [Journal Article] Magnetic Helicity Injection and Sigmoidal Coronal Loops (2005)
  • Author(s): T.T.Yamamoto, K.Kusano, T.MaeshiroT.Yokoyama, T.Sakurai
  • Journal Title: MagnetiHelicity Injection and Sigmoidal 624巻 Pages: 1072-1079
  • Peer Reviewed
• [Journal Article] Solar-Cycle Variation of Magnetic Helicity in Active Regions (2005)
  • Author(s): M.Hagino, T.Sakurai
  • Journal Title: Publications of the Astronomical Society of Japan 57巻 Pages: 481-485
  • NAID: 10023937315
  • Peer Reviewed
• [Journal Article] Magnetic Helicity Injection and Sigmoidal Coronal Loops (2005)
  • Author(s): T.Yamamoto
  • Journal Title: Astrophysical Journal 624 Pages: 1072-1079
• [Journal Article] Solar-Cycle Variation of Magnetic Helicity in Active Regions (2005)
  • Author(s): M.Hagino
  • Journal Title: Publications of the Astronomical Society of Japan 57 Pages: 481-485
• [Journal Article] Flare-Induced Coronal Disturbances Observed with Norikura "NOGIS" Coronagraph (2005)
  • Author(s): K.Hori
  • Journal Title: International Astronomical Union Symposium 226 Pages: 36-41
• [Presentation] 太陽前面像の高感度imaging polarimetry (2009)
  • Author(s): 花岡庸一郎
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 大阪府立大学
  • Year and Date: 2009-03-26
• [Presentation] 国立天文台乗鞍コロナ観測所でのNOAA11022などの偏光観測 (2009)
  • Author(s): 松村智英美, 他
  • 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] 対流崩壊で形成される光球磁束管の3次元MHDシミュレーション (2009)
  • Author(s): 高橋邦生, 他
  • 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] 太陽偏光分光観測用赤外線カメラの性能評価 (2009)
  • Author(s): 鈴木 勲、桜井 隆、花岡庸一郎、萩野正興
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: 大阪府立大学
• [Presentation] TRACE 1600Aで観測された彩層ジェット現象 (2008)
  • Author(s): 森本智彦, 花岡庸一郎
  • 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] 飛騨天文台ドームレス太陽望遠鏡でのシーイングモニタ (2008)
  • Author(s): 川手朋子, 他
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-11
• [Presentation] 太陽補償光学系KIT-AOの開発 : 装置開発状況(1) (2008)
  • Author(s): 能任祐貴, 他
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-11
• [Presentation] 太陽補償光学系KIT-AOの開発 : Multi-Conjugate波面センシング(1) (2008)
  • Author(s): 加藤秀輔, 他
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-11
• [Presentation] Magnetic Filling Factorの解釈 (2008)
  • Author(s): 桜井隆、森永修司
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: オリンピック記念青少年総合センター
  • Year and Date: 2008-03-25
• [Presentation] ポアの構造と進化II (2008)
  • Author(s): 森永修司、桜井 隆
  • Organizer: 日本天文学会春季年会
  • Place of Presentation: オリンピック記念青少年総合センター
  • Year and Date: 2008-03-25
• [Presentation] Large and Small Scale Dynamics in the Magnetic Activities of the Sun (2008)
  • Author(s): T. Sakurai
  • Organizer: International Symposium on Hierarchy and Holism: Bridging Across Different Hierarchies in Natural Sciences
  • Place of Presentation: 岡崎コンフェレンスセンター
  • Year and Date: 2008-02-21
• [Presentation] (2007)
  • Author(s): 森永修司, 他
  • 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] (2007)
  • Author(s): 高橋邦生, 他
  • 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] (2007)
  • Author(s): 草野完也, 他
  • 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] (2007)
  • Author(s): 井上 諭, 他
  • 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] Response of the Chromosphere and Corona to Emerging Flux (2007)
  • Author(s): T. Sakurai, 他
  • Organizer: The Seventh Hinode Science Meeting
  • Place of Presentation: ダブリン、アイルランド
  • Year and Date: 2007-08-21
• [Presentation] Initial Results from Hinode: Optical and X-ray Observations (2007)
  • Author(s): T. Sakurai
  • Organizer: Norway-Japan Symposium on Space and Polar Research
  • Place of Presentation: ノルウェー大使館
  • Year and Date: 2007-05-29
• [Presentation] ひので衛星の初期成果 (2007)
  • Author(s): 桜井 隆
  • Organizer: 地球惑星科学連合合同大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2007-05-21
• [Presentation] Center-to-Limb Variation in Stokes Profiles of Magnetic Fluxtubes Observed with Hinode Spectropolarimeter (2007)
  • Author(s): S. Morinaga, 他
  • Organizer: Imitial Results from Hinode: Workshop in Memory of Takeo Kosugi
  • Place of Presentation: 国立天文台
  • Year and Date: 2007-04-25
• [Presentation] 光球面磁場から予測される太陽フレアの規模について (2007)
  • Author(s): 山本哲也、桜井 隆、横山央明、草野完也
  • Organizer: 地球惑星科学連合合同大会
  • Place of Presentation: 幕張メッセ
• [Presentation] 光球面の磁場パラメータによる太陽フレアの規模の予測 (2007)
  • Author(s): 山本哲也、桜井 隆、横山央明、草野完也
  • Organizer: 地球惑星科学連合合同大会
  • Place of Presentation: 幕張メッセ
• [Book] シリーズ現代の天文学第10巻 太陽 桜井 隆・他 (編) (2009)
  • Author(s): 桜井 隆・他
  • Total Pages: 346
  • Publisher: 日本評論社
• [Book] シリーズ現代の天文学第10巻「太陽」 (2009)
  • Author(s): 桜井隆, 他(編)
  • Total Pages: 346
  • Publisher: 日本評論社