Marginal stability of parallel whistler-mode waves (asymptotic analysis) (original) (raw)

Annales Geophysicae, 1991

Abstract

A new approach to the asymptotic analysis of the marginal stability of whistler-mode waves in a weakly relativistic plasma makes it possible to generalize the results of previous papers to a wider range of parameters. In particular, it is pointed out that a decrease in electron density tends to stabilize whistler-mode instability, while an increase in electron temperature destabilizes or stabilizes it depending on the choice of the plasma model. However, the second effect is usually small when compared with the first one and can be neglected when analyzing the dynamics of whistler-mode waves in the earth's magnetosphere, as well as in the magnetospheres of other planets.

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