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2007 Fiscal Year Annual Research Report

宇宙天気予報の基礎研究

Research Project

Project/Area Number 17GS0208
Research InstitutionKyoto University

Principal Investigator

柴田 一成  Kyoto University, 理学研究科, 教授 (70144178)

Co-Investigator(Kenkyū-buntansha) 関井 隆  国立天文台, 太陽天体プラズマ研究部, 准教授 (20332158)
草野 完也  海洋開発研究機構, 地球シミュレータセンター, プログラムディレクター (70183796)
藤木 謙一  名古屋大学, 太陽地球環境研究所, 助教 (20303597)
荻野 竜樹  名古屋大学, 太陽地球環境研究所, 教授 (00109274)
鵜飼 正行  愛媛大学, 理工学研究科, 教授 (10036444)
Keywords太陽 / 太陽風 / 地球磁気圏 / 電離圏 / 宇宙天気 / プラズマ / スペース / 天文
Research Abstract

1.太陽エネルギー解放過程の研究:京大飛騨天文台において、SMART望遠鏡のデータベースシステムを整備増強した。ひので衛星や飛騨天文台で得られた観測データやフレアの3次元シミュレーション結果を3次元可視化するデータ解析システムを導入し、観測結果とシミュレーション結果の比較研究を推進した。これにより、ひので衛星で撮られた太陽X線像を世界で初めて3次元立体視映像化に成功した。これは京大総合博物館での企画展「京の宇宙学」で上映され、好評を博した。一方、CHAINプロジェクト(Hα太陽観測国際ネットワーク)の推進をはかるためにペルーとの共同研究を進めた。ひので衛星観測データの公開を国立天文台「ひのでサイエンスセンター」において推進した。太陽表面磁場観測データを境界条件とした非線形フォースフリー磁場の数値解法を改良し、ひので衛星が観測した活動領域のコロナ磁場を再構成するための新たなアルゴリズムを開発すると共に、2006年12月に現れた活動領域に適用した。2.惑星間シンチレーション観測による太陽風モデルの構築:太陽風電波望遠鏡の整備拡充を進めた。コロナ質量放出に伴う惑星間空間擾乱の3次元構造の解明を進め、惑星間のシンチレーション観測によって得られた太陽風速度構造と太陽表面・コロナの諸物理量の比較を行った。3.リアルタイム観測と宇宙天気図モデリング:地上磁場観測と磁気圏・電離圏人工衛星観測やレーダー観測、シミュレーションなどを統合し、電離圏電位・電流の宇宙天気図をリアルタイム(5分-10分毎)で作った。内部磁気圏のコーラス放射による高エネルギー電子の相対論的加速過程を解明した。4.バーチャル観測所:地球系データベース(STARS)に太陽データを追加することにより、システムを増強し、シミュレーション結果と結合させて、バーチャル観測所プロトモデルの開発に着手しか。リコネクションモデルを応用し、地球磁気圏サブストーム現象に伴うカレントウェッジ発生現象を説明し、地球に向かう高速流の観測結果をシミュレーション領域に配置した仮想衛星によって実証した。

  • Research Products

    (37 results)

All 2008 2007 Other

All Journal Article (22 results) (of which Peer Reviewed: 22 results) Presentation (13 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Energetic electron acceleration in the downstream reconnection outflow region2007

    • Author(s)
      Imada, S.
    • Journal Title

      Geophysical Research Letters 112

      Pages: A03202

    • Peer Reviewed
  • [Journal Article] Initial observations of sunspot oscilations excited by solar flare2007

    • Author(s)
      Kosovichev, A. G.
    • Journal Title

      The Astrophysical Journal 670

      Pages: L147-L149

    • Peer Reviewed
  • [Journal Article] CHAIN-project and installation of the flare monitoring telescopes in developing countries2007

    • Author(s)
      Ueno, S.
    • Journal Title

      Bulletin of the Astronomical Society of India 35

      Pages: 697-704

    • Peer Reviewed
  • [Journal Article] Chromospheric Anemone Jets as Evidence of Ubiquitous Magnetic Reconnection2007

    • Author(s)
      Shibata, K.
    • Journal Title

      Science 318

      Pages: 1591-1594

    • Peer Reviewed
  • [Journal Article] Coronal Transverse Magnetohydrodynamic Waves in a Solar Prominence2007

    • Author(s)
      Okamoto, T. J.
    • Journal Title

      Science 318

      Pages: 1577-1580

    • Peer Reviewed
  • [Journal Article] Basic Study of Space Weather Predictions: A New Project in Japan2007

    • Author(s)
      Shibata, K.
    • Journal Title

      Space Weather 4

      Pages: 14-18

    • Peer Reviewed
  • [Journal Article] Observations of Sunspot Oscillations in G Band and Call H Line with Solar Optical Telescope on Hinode2007

    • Author(s)
      Nagashima, K.
    • Journal Title

      Publications of the Astronomical Society of Japan 59

      Pages: S631-S636

    • Peer Reviewed
  • [Journal Article] Initial Helioseismic Observations by Hinode/SOT2007

    • Author(s)
      Sekii, T.
    • Journal Title

      Publications of the Astronomical Society of Japan 59

      Pages: S637-S640

    • Peer Reviewed
  • [Journal Article] Energetic particle parallel diffusion in a cascading wave turbulence in the foreshock region2007

    • Author(s)
      Otsuka, F.
    • Journal Title

      Nonlinear Processes in Geophysics 14

      Pages: 587-601

    • Peer Reviewed
  • [Journal Article] Relativistic particle acceleration in the process of whistler-mode chorus wave generation2007

    • Author(s)
      Katoh, Y.
    • Journal Title

      Geophysical Research Letters 34

      Pages: L13102-L13102-5

    • Peer Reviewed
  • [Journal Article] Relativistic turning acceleration of resonant electrons by coherent whistler mode waves in a dipole magnetic field2007

    • Author(s)
      Omura, Y.
    • Journal Title

      Journal_of Geophysical Research 112

      Pages: A06236-A06236-11

    • Peer Reviewed
  • [Journal Article] Multi-scale plasma simulation by the interlocking of magnetohydrodynamic model and particle-in-cell kinetic model2007

    • Author(s)
      Sugiyama, T.
    • Journal Title

      Journal of Computational Physics 227

      Pages: 1340-1352

    • Peer Reviewed
  • [Journal Article] Tests and Comparisons of Velocity Inversion Techniques2007

    • Author(s)
      Welsch, B. T.
    • Journal Title

      The Astrophysical Journal 670

      Pages: 1434-1152

    • Peer Reviewed
  • [Journal Article] Parametric decay of circularly polarized Alfven waves in the radially expanding solar wind2007

    • Author(s)
      Tanaka, S.
    • Journal Title

      Journal of Geophysical Research 112

      Pages: A10110-A10110-7

    • Peer Reviewed
  • [Journal Article] Medeling of two-ribbon flares by the fast reconnection mechanism2007

    • Author(s)
      Ugai, M.
    • Journal Title

      PHYSICS OF PLASMAS 14

      Pages: 102904-102904-6

    • Peer Reviewed
  • [Journal Article] Umbral Fine Structures in Sunspots Observed with Hinode Solar Optical Telescope2007

    • Author(s)
      Kitai, R.
    • Journal Title

      Publications of the Astronomical Society of Japan 59

      Pages: S585-S591

    • Peer Reviewed
  • [Journal Article] Velocity Structure of Jets in Coronal Hole2007

    • Author(s)
      Kamio, S.
    • Journal Title

      Publications of the Astronomical Society of Japan 59

      Pages: S757-S762

    • Peer Reviewed
  • [Journal Article] Small Scale Magnetic Flux Emergence Observed with Hinode/Solar Optical Telescope2007

    • Author(s)
      Otsuji, K.
    • Journal Title

      Publications of the Astronomical Society of Japan 59

      Pages: S643-S648

    • Peer Reviewed
  • [Journal Article] Triggering Mechanism for the Filament Eruption on 2005 September 13 in Active Region NOAA 108082007

    • Author(s)
      Nagashima, K.
    • Journal Title

      The Astrophysical Journal 668

      Pages: 533-545

    • Peer Reviewed
  • [Journal Article] Study of three dimensional structure of the fast convection flow in the plasma sheet by MHD simulations on the basis of spontaneous fast reconnection model2007

    • Author(s)
      Kondoh, K.
    • Journal Title

      Advances in Space Research 39

      Pages: 1378-1381

    • Peer Reviewed
  • [Journal Article] Conditions for drastic evolution of magnetospheric current wedge2007

    • Author(s)
      Ugai, M.
    • Journal Title

      PHYSICS OF PLASMAS 14

      Pages: 062902-062902-8

    • Peer Reviewed
  • [Journal Article] Computer simulation of chorus wave generation in the Earth's inner magnetosphere2007

    • Author(s)
      Katoh, Y.
    • Journal Title

      Geophysical Research Letters 34

      Pages: L03102

    • Peer Reviewed
  • [Presentation] Comparison between the satellite observation and MHD simuiation of earthward fast convection flow event2008

    • Author(s)
      Kondoh, K.
    • Organizer
      Conference on Earth and Sun System Exploration
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2008-01-16
  • [Presentation] Conditions for current wedge evolution and applications to two-ribbon flares2008

    • Author(s)
      Ugai, M.
    • Organizer
      Conference on Earth and Sun System Exploration
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2008-01-14
  • [Presentation] Magnetohydrodynamic Relaxation Processes in the Solar Corona2007

    • Author(s)
      Kusano, K
    • Organizer
      2007 AGU Fall Meeting
    • Place of Presentation
      Moscone South, San Francisco, CA, USA
    • Year and Date
      2007-12-10
  • [Presentation] Competition and Synergy of Macro- and Micro-scale Physics -Status and Prospects of Macro-Micro Interlocked Simulation-2007

    • Author(s)
      Kusano, K
    • Organizer
      The Joint Conference of 17th International Toki Conference (ITC) on Physics of Flows and Turbulence in Plasmas and 16th Internatinal Stellarator/Heliotron Workshop (ISHW) 2007
    • Place of Presentation
      セラトピア土岐(土岐市)
    • Year and Date
      2007-10-15
  • [Presentation] Solar Research in Japan2007

    • Author(s)
      Shibata, K.
    • Organizer
      7th East Asian Meeting on Astronomy (EAMA7)
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2007-10-09
  • [Presentation] Helioseismology from Hinode2007

    • Author(s)
      Sekii, T.
    • Organizer
      Time-Distance Helioseismology and Helioseismc Holography Workshop
    • Place of Presentation
      Stanford CA, USA
    • Year and Date
      2007-08-08
  • [Presentation] Initial Results of Hinode (Solar-B) mission2007

    • Author(s)
      Shibata, K.
    • Organizer
      IPELS 2007, (IPELS=Interrelationship between Plasma Experiments in Laboratory and Space)
    • Place of Presentation
      Palm Cove, Cairns, Australia
    • Year and Date
      2007-08-05
  • [Presentation] Fractal Reconnection in the Solar Atmosphere2007

    • Author(s)
      Shibata, K.
    • Organizer
      Asia Oceania Geoscience Societies (AOGS) 2007, session ST06-10 "From CMEs to BBFs: New Insights into Reconnection"
    • Place of Presentation
      Bangkok, Thailand
    • Year and Date
      2007-08-01
  • [Presentation] Early results from Hinode/SOT helioseismology2007

    • Author(s)
      Sekii, T.
    • Organizer
      SOHO 19/GONG 2007: Seismology of Magnetic Activity
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      2007-07-10
  • [Presentation] Solar Flares and Magnetic Fields in Active Regions2007

    • Author(s)
      Shibata, K
    • Organizer
      in the session ASIV030 "New results from solar and heliospheric missions" IUGG XXIV 2007 (International Union of Grodesy and Geophysics)
    • Place of Presentation
      Perugia, Italy
    • Year and Date
      2007-07-05
  • [Presentation] Some early results from the Hinode satellite2007

    • Author(s)
      Sekii, T.
    • Organizer
      Unsolved Problems in Stellar Physics
    • Place of Presentation
      Cambridge, UK
    • Year and Date
      2007-07-03
  • [Presentation] Flux Emergence: A Review2007

    • Author(s)
      Shibata, K.
    • Organizer
      Workshop on "Structure and Dynamics of Solar Magnetic Fields
    • Place of Presentation
      St Andrews, Scotland
    • Year and Date
      2007-06-13
  • [Presentation] Advanced Simulation Study on the Triggering Mechanism of Solar Flares and CMEs2007

    • Author(s)
      Kusano, K.
    • Organizer
      ASTRONUM-2007
    • Place of Presentation
      Paris, France
    • Year and Date
      2007-06-11
  • [Book] New Solar Physics with Solar-B Mission, ASP conference series, Volume: 3692007

    • Author(s)
      Shibata, K.
    • Total Pages
      593
    • Publisher
      Astronomical Society of the Pacific
  • [Remarks]

    • URL

      http://www.kwasan.kyoto-u.ac.jp/spw/

URL: 

Published: 2010-06-11   Modified: 2016-04-21  

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