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Effect of warm beam electrons on electrostatic-shock solutions

Published online by Cambridge University Press:  13 March 2009

M. Dey
Affiliation:
Centre of Plasma Physics, Near Chaliha Ware House, Dispur, Guwahati 781 006, Assam, India
U. N. Das
Affiliation:
Centre of Plasma Physics, Near Chaliha Ware House, Dispur, Guwahati 781 006, Assam, India
K. S. Goswami
Affiliation:
Centre of Plasma Physics, Near Chaliha Ware House, Dispur, Guwahati 781 006, Assam, India
S. Bujarbarua
Affiliation:
Centre of Plasma Physics, Near Chaliha Ware House, Dispur, Guwahati 781 006, Assam, India

Abstract

We use a one-dimensional quasi-neutral fluid model to study the formation of an electrostatic shock associated with the lower-hybrid mode propagating almost perpendicularly to the magnetic field that exists in the auroral zone of the magnetosphere containing cold downward-streaming electrons, cold upward-streaming ions and beam electrons. We examine the effects of finite electron-beam temperature by describing the beam electrons with fluid equations. We then show how exact time-stationary shock solutions may be found when quasi-neutrality is considered.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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