Physics
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977scct.conf..131g&link_type=abstract
In its Proc. of the Spacecraft Charging Technol. Conf. p 131-141 (SEE N78-10129 01-12)
Physics
Jupiter (Planet), Models, Planetary Magnetospheres, Spacecraft Charging, Magnetosheath, Pioneer 10 Space Probe, Pioneer 11 Space Probe, Plasma Diffusion
Scientific paper
To assess the role of spacecraft charging near Jupiter, the plasma distribution in Jupiter's magnetosphere was modeled using data from the plasma analyzer experiments on Pioneer 10 (published results) and on Pioneer 11 (preliminary results). In the model, electron temperatures are kT = 4 eV throughout, whereas proton temperatures range over 100 or equal to kT or equal to 400 eV. The model fluxes and concentrations vary over three orders of magnitude among several corotating regions, including, in order to increasing distance from Jupiter, a plasma void, plasma sphere, sporadic zone, ring current, current sheet, high latitude plasma and magnetosheath. Intermediate and high energy electrons and protons (to 100 MeV) are modeled as well. The models supply the information for calculating particle fluxes to a spacecraft in the Jovian environment. The particle balance equations (including effects of secondary and photoemission) then determine the spacecraft potential.
Divine Neil
Goldstein Raymond
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