Physics
Scientific paper
Jan 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kosis..23..106p&link_type=abstract
Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 23, Jan.-Feb. 1985, p. 106-112. In Russian.
Physics
Energetic Particles, Energy Spectra, Inner Radiation Belt, Outer Radiation Belt, Proton Energy, Diffusion Coefficient, Magnetospheric Instability, Particle Diffusion, Proton Resonance
Scientific paper
Molniya-2-satellite data on differential energy spectra of protons with an energy of 0.05-50 MeV in the radiation belts (RBs) are analyzed. The existence of two different mechanisms for the formation of a maximum in the spectra is indicated. In the outer RB, the formation of the maximum at energies of the order of 100 keV is due to loss mechanisms (charge tranfser and Coulomb collisions) during proton transport toward the earth. In the inner RB, the most probable mechanism of maximum formation at energies in the MeV range is a resonance mechanism connected with quasi-period fluctuations of the geomagnetic field. These fluctuations (along with the observed predominance of LF Pc3-Pc-4 waves in the magnetosphere) are the most likely cause of an increase in the diffusion coefficient of high-energy RB protons.
Parasiuk M. I.
Sosnovets Eh. N.
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