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Current-driven Alfvén instability

Published online by Cambridge University Press:  13 March 2009

Joseph V. Hollweg  and
Dean F. Smith
Joseph V. Hollweg
Affiliation:
High Altitude Observatory, National Center for Atmospheric Research, Boulder, Colorado 80303
Dean F. Smith
Affiliation:
High Altitude Observatory, National Center for Atmospheric Research, Boulder, Colorado 80303
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Abstract

The current-driven Alfvén instability is discussed analytically. The instability is driven by the resonant Landau and transit-time terms for propagation not parallel to B0. The critical current for instability is slightly less than the corresponding one for the ‘k-like’instability; thus, the instability discussed in this paper may be the more important for the parameter range in which our approximations are valid. The effect of current flow on the magnetosonic mode is also discussed, but no instability is found.

Type
Research Article
Information
Journal of Plasma Physics , Volume 15 , Issue 2 , April 1976 , pp. 245 - 252
Copyright
Copyright © Cambridge University Press 1976

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References

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