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MERGER SHOCK AND STOCHASTIC ACCELERATION OF NON-THERMAL PARTICLES IN THE DIFFUSE CLUSTER PLASMA: THE EFFECT OF TURBULENT ALFVEN WAVES

Research Project

Project/Area Number 17540219
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionYamagata Junior College

Principal Investigator

OHNO Hiroshi  Yamagata Junior College, 総合文化学科, 准教授 (70320611)

Project Period (FY) 2005 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2006: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2005: ¥700,000 (Direct Cost: ¥700,000)
Keywords宇宙物理 / 天文 / 理論天文学 / 宇宙物理学 / 物理天文学
Research Abstract

銀河団は,銀河が重力によって集まった天体です.銀河団内には銀河の他,高温・低密度のガス,磁場や宇宙線(エネルギーの高い電子や陽子)もあり,それらはX線・電波を用いた観測により研究されています.特に,宇宙線の起源はよくわかっていません.そこで本研究では,宇宙線が高エネルギーまで加速される物理過程について研究しました.その結果,従来の研究ではあまり考慮されてこなかった波長の長い磁場からの影響を考えると,より効率よく宇宙線を加速できる可能性のあることがわかりました.

Report

(5 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (9 results)

All 2008 2007 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results) Remarks (2 results)

  • [Journal Article] EFFECTS OF SMALL WAVENUMBER ALFVEN WAVES ON PARTICLE ACCELERATION

    • Author(s)
      Hiroshi Ohno
    • Journal Title

      Journal of Plasma and Fusion Research Series (掲載決定)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] EFFECTS OF SMALL WAVENUMBER ALFVEN WAVES ON PARTICLE ACCELERATION

    • Author(s)
      Hiroshi Ohno
    • Journal Title

      Journal of Plasma and Fusion Research Series (掲載決定)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] EFFECTS OF SMALL WAVENUMBER ALFVEN WAVES ON PARTICLE ACCELERATION2008

    • Author(s)
      Hiroshi Ohno
    • Organizer
      the 14th International Congress on Plasma Physics
    • Place of Presentation
      博多
    • Year and Date
      2008-09-11
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] EFFECTS OF SMALL WAVENUMBER ALFVEN WAVES ON PARTICLE ACCELERATION2008

    • Author(s)
      Hiroshi Ohno
    • Organizer
      KINETIC MODELING OF ASTROPHYSICAL PLASMAS
    • Place of Presentation
      ポーランド・クラクフ
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 乱流磁場による粒子加速2007

    • Author(s)
      大野 寛
    • Organizer
      研究会 マクロでミクロな銀河団
    • Place of Presentation
      山形
    • Year and Date
      2007-10-25
    • Related Report
      2008 Final Research Report
  • [Presentation] 乱流磁場による粒子加速2007

    • Author(s)
      大野 寛
    • Organizer
      研究会「マクロでミクロな銀河団」
    • Place of Presentation
      山形・たかみや瑠璃倶楽リゾート
    • Year and Date
      2007-10-25
    • Related Report
      2007 Annual Research Report
  • [Presentation] 銀河団における乱流磁場による粒子加速2007

    • Author(s)
      大野 寛
    • Organizer
      日本天文学会春季年会
    • Place of Presentation
      東海大学
    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.oa.uj.edu.pl/cracow2008/Program.html

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://astr-www.kj.yamagata-u.ac.jp/~zao2007/presentations/pdf/ohno.pdf

    • Related Report
      2007 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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