Shock Modification by Cosmic-Ray-Excited Turbulences(Chapter 6. SN1006 Milenium Special Session, The Extreme Universe in the Suzaku Era)
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概要
- 論文の詳細を見る
In cosmic-ray-mediated shocks large amplitude Alfven waves are believed to be generated by accelerated cosmic ray particles. The enhanced magnetic pressure shared by these waves is non-negligible in the momentum and energy balances across the shock transition region. Accordingly the shock Rankine-Hugoniot condition is further modified, and the compression ratio across the shock departs from the classical values of 4 (nonrelativistic) and 7 (relativistic). We argue that in the 'grand equipartition' limit, namely equipartition among the waves, the background plasma, and the cosmic ray particles, the compression ratio recovers to the value of 4, and the corresponding spectral index of cosmic ray particles also comes back to the canonical value of 2.
- 理論物理学刊行会の論文
- 2007-12-19
著者
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Bamba Aya
Cosmic Radiation Laboratory
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YAMAZAKI Ryo
Department of Physical Science, Hiroshima University
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Yamazaki Ryo
Department Of Earth And Space Science Osaka University
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Yamazaki Ryo
Department Of Physics Hiroshima University
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TERASAWA Toshio
Interactive Research Center for Science and Department of Physics, Tokyo Institute of Technology
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HADA Tohru
Department of Earth System Science and Technology, Kyushu University
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MATSUKIYO Shuichi
Department of Earth System Science and Technology, Kyushu University
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OKA Mitsuo
Kwasan Observatory, Kyoto University
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Terasawa Toshio
Interactive Research Center For Science And Department Of Physics Tokyo Institute Of Technology
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Oka Mitsuo
Kwasan Observatory Kyoto University
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Hada Tohru
Department Of Earth System Science And Technology Kyushu University
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Matsukiyo Shuichi
Department Of Earth System Science And Technology Kyushu University
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