Low-energy charged particle observations in the 5-20 Jupiter-radius region of the Jovian magnetosphere

Details Low-energy charged particle observations in the 5-20 Jupiter-radius region of the Jovian magnetosphere Low-energy charged particle observations in the 5-20 Jupiter-radius region of the Jovian magnetosphere

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.8343a&link_type=abstract

Journal of Geophysical Research, vol. 86, Sept. 30, 1981, p. 8343-8355.

Physics

66

Charged Particles, Jupiter Atmosphere, Magnetospheric Electron Density, Magnetospheric Ion Density, Planetary Magnetospheres, Plasma Diagnostics, Energy Spectra, Radial Distribution, Voyager Project, Jupiter, Magnetosphere, Lecp, Low Energy Charged Particle Experiment, Observations, Regions, Ions, Electrons, Voyager 1, Voyager 2, Data, Morphology, Particles, Intensity, Energy, Spectrum, Composition, Io, Diffusion, Radial Transport, Asymmetry, Magnetic Fields, Models, Satellites, Plasma Torus, Density, Equip

Scientific paper

Ion (greater than 0.5 MeV) and electron (greater than 30 keV) measurements made by the low-energy charged particle instrument during the Voyager 1 and 2 traversals of the 5-20 Jupiter-radius region of the Jovian magnetosphere are presented. The spatial morphology of particle intensities, energy spectra, and composition is emphasized. Diffusive radial transport is also discussed. The Jovian magnetosphere seemed to be much more disturbed during the Voyager 2 passage than during that of Voyager 1. Significant inbound-outbound asymmetries of the radial profiles of intensities are observed; an appropriate magnetic field model to provide closure has not been found. Low-energy electrons are not enhanced or depleted in the Io torus region except at the inner edge, about 5.2 Jupiter-radius, where they sharply decrease. This may be due to enhanced electron loss associated with a region of increased plasma density.

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