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Finite-beta and curvature drift effects on drift waves near the plasmapause

Published online by Cambridge University Press:  13 March 2009

S. Migliuolo  and
V. L. Patel
S. Migliuolo
Affiliation:
Department of Physics, University of Denver, Denver, Colorado, 80208
V. L. Patel
Affiliation:
Department of Physics, University of Denver, Denver, Colorado, 80208
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Abstract

The linear stability of finite-β drift waves, near the plasmapause of the earth, is analysed for the case in which the magnetic field is non-uniform in two dimensions. The coupling of the drift wave to the oscillation of the magnetic field, due to non-zero β, is found to be destabilizing. The spatial structure of the unstable mode is found to be governed by the ‘curvature’ scale length of the equilibrium magnetic field.

Type
Research Article
Information
Journal of Plasma Physics , Volume 29 , Issue 1 , February 1983 , pp. 85 - 97
Copyright
Copyright © Cambridge University Press 1983

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