About the origin of high energy electrons in the inner radiation belt

Details About the origin of high energy electrons in the inner radiation belt About the origin of high energy electrons in the inner radiation belt

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jatp...57..201m&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 57, no. 2, p. 201-204

Physics

4

Atmospheric Physics, Derivation, Earth Magnetosphere, Flux (Rate), High Energy Electrons, Inner Radiation Belt, Energy Dissipation, Magnetic Storms, Particle Diffusion, Radial Flow, Synchrotron Radiation

Scientific paper

A large flux of greater than 100 MeV electrons were registered in the inner radiation belt on low-altitude satellites. The origin of that flux is discussed. It appears that slow radial diffusion (D(sub 0) equal to 10(exp -13) 1/s) gives a low probability for penetration of these electrons to small L from the boundary of magnetosphere because of synchrotron radiation energy losses. It is found that they can enter to the inner belt region without such losses after great magnetic storms when high speed radial diffusion sometimes takes place. Two great storms on 8-9 Feb. 1986 and 24 March 1991 are examples when one can directly observe a penetration of energetic electron fluxes into magnetosphere. The assumption about their Jovian origin is discussed.

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