Detection of Interplanetary Electrons from 18 keV to 1.8 MeV during Solar Quiet Times
- 9 October 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 29 (15) , 1035-1038
- https://doi.org/10.1103/physrevlett.29.1035
Abstract
We have observed a quiet-time component of interplanetary electrons having energies above solar-wind energies and below those characterized as cosmic radiation. Its energy spectrum generally falls with energy from 18 keV to 1.8 MeV, but shows a feature in the 100-300-keV range. The observed temporal variations of the intensity suggest that the 18-100-keV portion is solar and the 0.3-1.8-MeV portion is galactic in origin. Solar and terrestrial neutron-decay electrons appear inadequate to explain the 100-300-keV feature.Keywords
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