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Lower-hybrid instability in current-carrying plasmas

Published online by Cambridge University Press:  13 March 2009

Joseph E. Willett  and
Hassan Mehdian
Joseph E. Willett
Affiliation:
Department of Physics, University of Missouri-Columbia, Columbia, Missouri 65211, U.S.A.
Hassan Mehdian
Affiliation:
Department of Physics, University of Missouri-Columbia, Columbia, Missouri 65211, U.S.A.
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Abstract

The stability of lower-hybrid waves in a collisional, fully ionized plasma carrying a field-aligned current is investigated. From the two-fluid equations in the cold-plasma approximation, a generalized dispersion relation and formulae for the real frequency ωI and growth rate ωR are derived. The results of a numerical study are presented showing the dependence of ωR and ωI on the angle between the direction of propagation and the magnetic field, the ratio of the electron drift velocity to the parallel phase velocity, and other plasma parameters. Lower-hybrid instability with electron drift velocity small compared with the parallel phase velocity is predicted.

Type
Research Article
Information
Journal of Plasma Physics , Volume 28 , Issue 3 , December 1982 , pp. 527 - 537
Copyright
Copyright © Cambridge University Press 1982

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References

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