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STUDY OF SOLAR FLARE MECHANISM AND ITS APPLICATION TO GAMMA RAY BURSTS

Research Project

Project/Area Number 14540226
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

SHIBATA Kazunari  KYOTO UNIV., GRADUATE SCHOOL OF SCIENCE, Professor, 大学院・理学研究科, 教授 (70144178)

Co-Investigator(Kenkyū-buntansha) NOGAMI Daisaku  KYOTO UNIV., GRAD.SCHOOL OF SCIE., Assistant, 大学院・理学研究科, 助手 (20332728)
KITAI Reizaburo  KYOTO UNIV., GRAD.SCHOOL OF SCIE., Associate Professor, 大学院・理学研究科, 助教授 (40169850)
KUROKAWA Hiroki  KYOTO UNIV., GRAD.SCHOOL OF SCIE., Professor, 大学院・理学研究科, 教授 (80135508)
MINESHIGE Shin  KYOTO UNIV., GRAD.SCHOOL OF SCIE., Professor, 基礎物理学研究所, 教授 (70229780)
YOKOYAMA Takaaki  KYOTO UNIV., GRAD.SCHOOL OF SCIE., Associate Professor, 大学院・理学系研究科, 助教授 (00311184)
上野 悟  京都大学, 大学院・理学研究科, 助手 (70303807)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2003: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2002: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywordsflare / gamma ray bursts / magnetic reconnection / jet / plasmoid / magnetohydrodynamics / simulation
Research Abstract

The purpose of this research is to clarify energy release mechanism of solar flares, by examining basic mechanism of reconnection and associated mass ejections and particle acceleration, and to apply solar flare mechanism to cosmic flares and gamma ray bursts. Main research results are as follows. 1)Explanation of apparent difference between hard X-rays and H alpha images of flares based on magnetic reconnection model. 2)Discovery of downflow associated with hard X-ray bursts of flares. 3)Simultaneous observation of Moreton wave with H alpha and X-rays. 4)Discovery of X-ray expanding features associated with Moreton wave (first discovery of 3D structure of coronal fast mode shock). 5)Modeling of EIT wave and Moreton wave with MHD simulations. 6)Identification of fast and slow shocks in giant arcade. 7)MHD modeling of reconnection inflow. 8)Nonlinear Alfven wave model of coronal heating and nanoflares. 9)Discovery of "dawn-dusk asymmetry" in the solar corona. 10)Emission measure -temperature analysis of giant coronal arcade and test of flare/arcade loop length scaling law. 11)"HR diagram" of solar/stellar flares and coronae. 12)Reconnection heating model of accretion disk corona. 13)General relativistic MHD simulation of collapsars as a model of gamma ray bursts. 14)Log-normal distribution of CME/flare and new model of gamma ray bursts.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Isobe, H., Shibata, K., Yokoyama, T., Imanishi, K.: "Hydrodynamic Modeling of a Flare Loop Connecting the Accretion Disk and Central Core of Young Stellar Objects"Publications of Astronomical Society of Japan. Vol.55. 967-980 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.F.Chen, K.Shibata, D.H.Brooks, H.Isobe: "A Reexamination of the Evidence for Reconnection Inflow"Astrophysical Journal Letter. Vol.602. L61-L64 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Mizuno, Y., Yamada, S., Koide, S., Shibata, K.: "General Relativistic Magnetohydrodynamic Simulations of Collapsars"Astrophysical Journal. Vol.606. 395-412 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Asai, A., Yokoyama, T., Shimojo, M., Shibata, K.: "Downflow Motions Associated with Impulsive Nonthermal Emissions Observed in the 2002 July 23 Solar Flare"Astrophysical Journal Letter. Vol.607. L67-L70 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kato, Y., Mineshige, S., Shibata, K.: "Magnetohydrodynamical Accretion Flows : Formation of Magnetic Tower Jet and Subsequent Quasi-Steady State"Astrophysical Journal. Vol.605. 307-320 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Narukage, N., Morimoto, T., Kadota, M., Kitai, R., Shibata, K.: "X-ray Expanding Features Associated With Moreton Wave"Publications of Astronomical Society of Japan. Vol.56. L5-L8 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 柴田一成, 大山真満: "写真集 太陽 -身近な恒星の最新像-"裳華房. 87 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Isobe, H., Shibata, K., Yokoyama, T., Imanishi, K.: "Hydrodynamic Modeling of a Flare Loop Connecting the Accretion Diskand Central Core of Young Stellar Objects"Publication of Astronomical Society of Japan. Vol.55. 967-980 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] P.F.Chen, K.Shibata, D.H.Brooks, H.Isobe: "A Reexamination of the Evidence for Reconnection Inflow"Astrophysical Journal Letter. Vol.602. L61-L64 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Mizuno, Y., Yamada, S., Koide, S., SHibata, K.: "General Relativistic Magnetohydrodynamics Simulations of Collapsars"Astrophysical Journal. VOl.606. 395-412 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Asai, A., Yokoyama, T., Shimojo, M., Shibata, K.: "Downflow Motions Associated with impulsive Nonthermal Emissions, Observed in the 2002 July 23 Solar Flare"Astrophysical Journal Letter. Vol.607. L67-L70 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kato Y., Mineshige, S., SHibata, K.: "Magnetohydrodynamical Accretion Flows: Formation of Magnetic Tower Jet and Subsequent Quasi-Steady State"Astrophysical Journal. Vol.605. 307-320 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Narukage, M., Morimoto, T., Kadota, M., Kitai, R., Shibata, K.: "X-ray Expanding Features Associated With Moreton Wave"Publications of Astronomical Society of Japan. Vol.56. L5-L8 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Isobe, H., Shibata, K., Yokoyama, T., Imanishi, K.: "Hydrodynamic Modeling of a Flare Loop Connecting the Accretion Disk and Central Core of Young Stellar Objects"Publications of Astronomical Society of Japan. Vol.55. 967-980 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] P.F.Chen, K.Shibata, D.H.Brooks, H.Isobe: "A Reexamination of the Evidence for Reconnection Inflow"Astrophysical Journal Letter. Vol.602. L61-L64 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Mizuno, Y., Yamada, S., Koide, S., Shibata, K.: "General Relativistic Magnetohydrodynamic Simulations of Collapsars"Astrophysical Journal. (In press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Asai, A., Yokoyama, T., Shimojo, M., Shibata, K.: "Downflow Motions Associated with Impulsive Nonthermal Emissions Observed in the 2002 July 23 Solar Flare"Astrophysical Journal Letter. Vol.607. L67-L70 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kato, Y., Mineshige, S., Shibata, K.: "Magnetohydrodynamical Accretion Flows : Formation of Magnetic Tower Jet and Subsequent Quasi-Steady State"Astrophysical Journal. (In press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Narukage, N., Morimoto, T., Kadota, M., Kitai, R., Shibata, K.: "X-ray Expanding Features Associated With Moreton Wave"Publications of Astronomical Society of Japan. (In press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 柴田一成, 大山真満: "写真集 太陽 -身近な恒星の最新像-"裳華房. 87 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shiota, D. et al.: "Slow and Fast MHD Shocks Associated with a Giant Cusp-shaped Arcade on 1992 January 24"Publications of Astronomical Society of Japan. Vol.55, No.3(In press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Shibata, K, Aoki, S.: "MHD Jets, Flares, and Gamma Ray Bursts"Proceedings of Conference on Beams and Jets in Gamma Ray Bursts Nordita Denmark (astro-ph 0303253). (発表予定). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yamamoto, T. et al.: "Analysis of the Temperature and Emission Measure of Solar Corona Arcade and Test of a Scaling of Flare/Arcade Loop Length"Astrophysical Journal. 579. L45-L48 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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