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Electron-Cyclotron maser emission from streaming distributions

Published online by Cambridge University Press:  13 March 2009

A. J. Willes  and
P. A. Robinson
A. J. Willes
Affiliation:
Department of Theoretical Physics and Research Center for Theoretical Astrophysics, School of Physics, University of Sydeny, NSW 2006, Australia
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Abstract

Motivated by the need to explain observed elliptically polarized emission from Jupiter, the mechanism of electron-cyclotron maser emission is considered for drifting electron distributions, where the electrons stream with a non-zero mean velocity parallel to the magnetic field lines. An analytical expression for the semirelativistic growth rate is derived and its properties analysed in detail for waves generated in the magneto-ionic modes. The main features of the growth rate are discussed, on the basis of a geometric analysis using resonant ellipses.

Type
Research Article
Information
Journal of Plasma Physics , Volume 51 , Issue 1 , February 1994 , pp. 75 - 93
Copyright
Copyright © Cambridge University Press 1994

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