Charged-particle fluxes in the inner magnetosphere in the region of the South Atlantic magnetic anomaly and effects of strong pitch-angle and radial plasma diffusion

Details Charged-particle fluxes in the inner magnetosphere in the region of the South Atlantic magnetic anomaly and effects of strong pitch-angle and radial plasma diffusion Charged-particle fluxes in the inner magnetosphere in the region of the South Atlantic magnetic anomaly and effects of strong pitch-angle and radial plasma diffusion

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kosis..23..921s&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 23, Nov.-Dec. 1985, p. 921-925. In Russian.

Computer Science

Sound

Charged Particles, Earth Magnetosphere, Plasma Diffusion, Satellite Sounding, Cosmos Satellites, Energy Spectra, Flux Quantization, Magnetic Anomalies, Space Plasmas, Whistlers

Scientific paper

Cosmos-900 measured strongly fluctuating energy spectra for electron and ion components of the plasma at energies of 100 eV to 20 keV in the region of the South Atlantic magnetic anomaly (SAMA) at an altitude of 500 km and L less than about 2. A mechanism for the occurrence of this phenomenon is proposed which involves: (1) the 'sinking' into the ionosphere of magnetic mirror points of particles quasi-trapped by the geomagnetic field in the SAMA region, leading to the intensification of precipitating particles; and (2) the intensification of the plasma flux in the loss cone, serving as the cause of the growth of wave disturbances and the intensification of the pitch-angle diffusion of particles on waves; radial diffusion is also intensified because of L-shell asymmetry.

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