Other
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988p%26ss...36.1111s&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 36, Nov. 1988, p. 1111-1119. Research supported by SERC.
Other
18
Hartree Approximation, Plasma Density, Plasma Frequencies, Refractivity, Whistlers, Perturbation Theory, Plasma Temperature
Scientific paper
Based on an improved quasilongitudinal approximation of the Appleton-Hartree dispersion equation for whistler-mode waves, the formula for the squared whistler-mode refractive index N-squared has been derived, in which the effects of plasma finite density and finite temperature and anisotropy are considered as the pertubations of the corresponding squared refractive index N(0)-squared for whistler-mode waves in a cold and infinitely dense plasma. The relative influence of the effects of plasma finite density and temperature on the value of N-squared, the direction of whistler-mode group velocity, the whistler-mode energy guidance along magnetic field lines, and the whistler-mode polarization, growth, and damping are considered. The conditions under which these effects compensate each other for the above-mentioned characteristics of whistler-mode waves are pointed out.
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