Physics
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..632f&link_type=abstract
Journal of Geophysical Research, vol. 87, Feb. 1, 1982, p. 632-642. Research supported by the U.S. Department of Energy and NAS
Physics
62
Bow Waves, Electron Plasma, Geomagnetism, Lines Of Force, Shock Waves, Space Plasmas, Electron Energy, International Sun Earth Explorer 3, Solar Wind, Time Response
Scientific paper
New observations of bowshock modified electron velocity distribution for upstreams are investigated using the Los Alamos ISEE 3 electron analyzer. Examples of two-dimensional electron distributions observed when ISEE 3 magnetically connected to the bowshock are presented, and the velocity moments are determined. The origin of the enhanced backstreaming electron fluxes and their likely effects on the upstream microturbulence spectrum are interpreted. A nearly isotropic component of back-streaming shock-heated electrons is found with energies at least as high as 1 keV. Phase-space density of the low energy parts of distributions measures well within the boundaries of accessibility and is observed to be depressed. Such distributions are likely to result from the direct sampling of electrons originating within the forward edge of the earth's bowshock, and may be unstable to whistler waves.
Anderson Robert C.
Asbridge J. R.
Bame J. Jr. S.
Feldman William C.
Gosling Jack T.
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