Preliminary results of 'Molniia-1' satellite observations of ring-current protons during magnetic disturbances

Details Preliminary results of 'Molniia-1' satellite observations of ring-current protons during magnetic disturbances Preliminary results of 'Molniia-1' satellite observations of ring-current protons during magnetic disturbances

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975kosis..13..352g&link_type=abstract

Kosmicheskie Issledovaniia, vol. 13, May-June 1975, p. 352-360. In Russian.

Computer Science

Magnetic Disturbances, Proton Belts, Proton Energy, Ring Currents, Satellite Observation, Earth Magnetosphere, Energy Spectra, Magnetic Storms, Particle Diffusion, Plasmapause, Proton Flux Density, Radial Distribution

Scientific paper

Experimental results are presented for observations of ring-current proton injection during a bay on October 28, 1973, and three storms on January 25, February 12, and February 21, 1974. Asymmetry of the protons was observed relative to the noon-midnight meridian during the major phases of the storms, and particle injection was accompanied by changes in the shape of the energy spectrum at the inner edge of the ring current. The possible influence of the ion-cyclotron instability on the formation of this inner edge is analyzed. Immediately after the major phases of the storms, a dip with energies of several tens of keV was observed in the spectrum in the pre-midnight sector. It is suggested that the dip may have been caused by the development of an instability leading to pitch-angle diffusion of the protons and their destruction in the plasmapause.

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