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The electromagnetic interchange mode in a partly-ionized collisional plasma

Published online by Cambridge University Press:  13 March 2009

Mary K. Hudson  and
Charles F. Kennel
Mary K. Hudson
Affiliation:
Department of Physics and Institute of Geophysics and Planetary PhysicsUniversity of California, Los Angeles
Charles F. Kennel
Affiliation:
Department of Physics and Institute of Geophysics and Planetary PhysicsUniversity of California, Los Angeles
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Abstract

A collisional electromagnetic dispersion relation is derived from two-fluid theory for the interchange mode coupled to the Alfvé n, acoustic, drift and entropy modes in a partly-ionized plasma. The fundamental electromagnetic nature of the interchange mode is noted: coupling to the intermediate Alfvé n mode is strongly stabilizing for finite k2. Both ion– viscous and ion–neutral stabilization are included; and it is found that collisions destroy the FLR cutoff at short perpendicular wavelengths.

Type
Research Article
Information
Journal of Plasma Physics , Volume 14 , Issue 1 , August 1975 , pp. 121 - 134
Copyright
Copyright © Cambridge University Press 1975

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References

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