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The effect of electron temperature anisotropy on the propagation of whistler waves

Published online by Cambridge University Press:  13 March 2009

Tomikazu Namikawa ,
Hiromitsu Hamabata  and
Kazuhiko Tanabe
Tomikazu Namikawa
Affiliation:
Department of Physics, Faculty of Science, Osaka City University, Osaka, Japan
Hiromitsu Hamabata
Affiliation:
Department of Physics, Faculty of Science, Osaka City University, Osaka, Japan
Kazuhiko Tanabe
Affiliation:
Department of Physics, Faculty of Science, Osaka City University, Osaka, Japan
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Abstract

The first-order Chew, Goldberger & Low (GGL) equations for electrons including the effect of finite Larmor radius are applied to the whistler wave. The zerothorder velocity distribution function for electrons in the GGL expansion is assumed to be an anisotropic Maxwellian. The effect of electron thermal motion on the propagation of whistler waves is analysed by use of a dispersion relation and properties of the refractive index surface. It is shown that the electron thermal motion intensifies the tendency of whistler waves to follow the lines of force of the earth's magnetic field at appropriate values of electron temperature anisotropy.

Type
Research Article
Information
Journal of Plasma Physics , Volume 26 , Issue 1 , August 1981 , pp. 83 - 93
Copyright
Copyright © Cambridge University Press 1981

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