Modulation of Trapped Energetic Electrons at 6.6 R(e) by the Direction of the Interplanetary Magnetic Field.

摘要

Energetic (E sub e >1.6MeV >3.9MeV) trapped electron fluxes observed at the synchronous altitude during 1974and 1975by an experiment aboard ATS-6exhibit a modulation in intensity which is correlated with the passage of sector structure boundaries of the interplanetary magnetic field past the earth. The electron fluxes reach equilibrium intensities during the time the magnetosphere is in a given IMF sector which are highest in the fall for (+) sectors and highest in the spring for (-) sectors. (Author)