Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ap%26ss..38..125b&link_type=abstract
Astrophysics and Space Science, vol. 38, Nov. 1975, p. 125-155.
Astronomy and Astrophysics
Astrophysics
5
Electromagnetic Radiation, Magnetic Effects, Particle Size Distribution, Plasma Turbulence, Diffusion Coefficient, Magnetic Variations, Particle Interactions, Statistical Analysis, Wave Dispersion
Scientific paper
A statistical theory previously developed for electrostatic waves is extended to the case of electromagnetic waves in the presence of a constant magnetic field. The theory is nonlinear and contains the effects of mode-mode coupling. The extension is not straightforward and involves calculation of perturbed trajectories in both velocity and configuration space. A diffusion equation is derived for the average particle-distribution function, the associated diffusion tensor is calculated, and a nonlinear wave-dispersion relation is found. All these results contain the usual quasi-linear theory as the lowest-order approximation.
Ben-Israel I.
Eviatar Aharon
Piran Tsvi
Weinstock J.
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