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The effect of cosmic rays on the instability of a tangential discontinuity

Published online by Cambridge University Press:  13 March 2009

S. V. Chalov
S. V. Chalov
Affiliation:
Institute for Problems in Mechanics U.S.S.R.Academy of Sciences, Pr. Vernadskogo 101, 117526 Moscow, U.S.S.R.
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Abstract

The Kelvin-Helmholtz instability of a tangential velocity discontinuity in a plasma flow when cosmic-ray pressure is taken into account is studied. It is shown that a new unstable mode can exist. This appears when an effective Mach number exceeds some critical value. In the case of strong flow mediation by cosmic rays the wave vectors of the most-unstable waves are directed along the plasma velocity vector for both subsonic and supersonic flows.

Type
Research Article
Information
Journal of Plasma Physics , Volume 46 , Issue 2 , October 1991 , pp. 309 - 317
Copyright
Copyright © Cambridge University Press 1991

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