Computer Science
Scientific paper
Dec 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26.1149t&link_type=abstract
Planetary and Space Science, vol. 26, Dec. 1978, p. 1149-1159.
Computer Science
Earth Magnetosphere, Energetic Particles, Geomagnetic Pulsations, Magnetically Trapped Particles, Particle Flux Density, Coupled Modes, Linear Systems, Magnetic Field Configurations, Magnetohydrodynamic Waves, Perturbation Theory
Scientific paper
The paper presents a theoretical study of the mechanism of flux modulations of energetic protons and electrons associated with the long-period geomagnetic pulsations in the outer magnetosphere. A linear perturbation theory of the guiding center distribution function averaged over the bounce phase of an interacting particle is developed for the case of the three-dimensional magnetic oscillations with a sufficiently long period compared with the bounce time of the particle. The formulation is extended to include some effects of the perturbed drift orbit on the particle distribution; particle trapping in the wave field and the phase bunching process are considered. The possibility of flux oscillations due to compressional magnetic perturbation and of flux oscillations arising from the nearly transverse magnetic variations is examined.
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