Survey of the plasma electron environment of Jupiter: A view from Voyager

Details Survey of the plasma electron environment of Jupiter: A view from Voyager Survey of the plasma electron environment of Jupiter: A view from Voyager

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8033325s&link_type=abstract

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Electron Plasma, Jupiter Atmosphere, Planetary Magnetospheres, Space Plasmas, Voyager Project, Bow Waves, Coulomb Collisions, Io, Magnetic Fields, Plasma Temperature, Shock Waves

Scientific paper

The plasma environment within Jupiter's bow shock is considered in terms of the in situ, calibrated electron plasma measurements made between 10 eV and 5.95 keV by the Voyager plasma science experiment (PLS). Measurements were analyzed and corrected for spacecraft potential variations; the data were reduced to nearly model independent macroscopic parameters of the local electron density and temperature. It is tentatively concluded that the radial temperature profile within the plasma sheet is caused by the intermixing of two different electron populations that probably have different temporal histories and spatial paths to their local observation. The cool plasma source of the plasma sheet and spikes is probably the Io plasma torus and arrives in the plasma sheet as a result of flux tube interchange motions or other generalized transport which can be accomplished without diverting the plasma from the centrifugal equator. The hot suprathermal populations in the plasma sheet have most recently come from the sparse, hot mid-latitude "bath" of electrons which were directly observed juxtaposed to the plasma sheet.

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