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Firehose and mirror instabilities in a collisionless heat conducting plasma

Published online by Cambridge University Press:  13 March 2009

G. L. Kalra
Affiliation:
Department of Physics and Astrophysics, University of Delhi, Delhi, India
Bhupinder Singh
Affiliation:
Department of Physics and Astrophysics, University of Delhi, Delhi, India
S. N. Kathuria
Affiliation:
Indian Meteorological Department, Lodhi Road, New Delhi, India

Abstract

A closed set of CGL equations, modified to include heat flux correction, is used to study the firehose and mirror instabilities in a rarefied plasma. A significant feature which has been noticed is that some of the terms contributed by the higher-order moments are of the same order as the terms in the unmodified CGL equations. We study the effect on the firehose and mirror instabilities of those terms which persist in the limit of vanishing heat flux vector. It is found that these terms lead to a new criterion for mirror instability. The criterion for hose instability, however, remains unaffected.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1985

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