Physics
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aeha.agarq....b&link_type=abstract
In AGARD, The Aerospace Environment at High Altitudes and its Implications for Spacecraft Charging and Communications 16 p (SEE
Physics
Earth Magnetosphere, Energetic Particles, Radiation Damage, Solar Wind, Spacecraft Environments, Energy Spectra, Jupiter (Planet)
Scientific paper
Particular emphasis is given to highly relativistic electrons (3 approx. 10 MeV). Electron fluxes and energy spectra are shown that were measured by two high energy electron sensor systems at 6.6 R sub E from 1979 through 1984. Large, persistent increases in this population were found to be relatively infrequent and sporadic in 1979 to 1981 around solar maximum. During the approach to solar minimum (1981 to present) it is observed that the highly relativistic electrons occur with a regular 27-day periodicity and are well associated with the reestablished solar wind stream structures. The present analysis suggests that the Jovian magnetosphere is a recurrent source of this significant electron population in the outer terrestrial magnetosphere and that these electrons have a very deleterious effect on spacecraft systems due to deep dielectric charging and low-dose susceptibility effects.
Baker Daniel N.
Belian Richard D.
Bernard Blake J.
Higbie Paul R.
Klebesadel Ray W.
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