Some studies of whistler mode propagation in the magnetospheric plasma

Details Some studies of whistler mode propagation in the magnetospheric plasma Some studies of whistler mode propagation in the magnetospheric plasma

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jatp...43..139s&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 43, Feb. 1981, p. 139-146.

Physics

12

Cold Plasmas, Earth Magnetosphere, Plasma Waves, Space Plasmas, Wave Propagation, Whistlers, Air Ducts, Anisotropy, Electron Distribution, Magnetic Fields, Plasma Temperature, Refractivity, Temperature Gradients

Scientific paper

Limits in the application of a cold plasma model to whistler propagation in the magnetospheric plasma are studied. It is pointed out that finite anisotropy of magnetospheric plasma can compensate for the influence of finite temperature on whistler propagation so that the cold plasma model can be applied. An approximate formula is obtained for whistler refractive index for the case of oblique propagation in a hot anisotropic plasma with a loss cone. This formula is applied to the problem of whistler energy focusing along the magnetic field in the homogeneous plasma and whistler mode propagation in magnetospheric ducts. The possibility of whistler trapping in ducts formed by temperature gradients in the magnetospheric plasma is pointed out.

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