A Noteworthy Plasma Parameter on the Shock Acceleration/Heating Process

Details A Noteworthy Plasma Parameter on the Shock Acceleration/Heating Process A Noteworthy Plasma Parameter on the Shock Acceleration/Heating Process

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.2421s&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

1

Scientific paper

In addition to well known macro plasma parameters of Mach number (MA ) and plasma β (ratio of the plasma to the magnetic pressure), we would like to emphasize ωpe /Ωce as another important parameter for the kinetics of the plasma heating/acceleration in the shock transition region. When ωpe /Ωce ≤ 1 any electron hole is not generated and we obtain mild heating with harder energy spectrum. When ωpe /Ωce ≥ 20 we observe strong heating and acceleration for the electron. In the parameter region of ωpe /Ωce > 5 we observe a clear series of electron holes and, after that, ion holes generation in the resultant hot electrons. These ion holes help further electron energization.

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