Jupiter's radiation belts

Details Jupiter's radiation belts Jupiter's radiation belts

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ssrv...23..277s&link_type=abstract

(COSPAR, IAU, IUGG, IUPAP, and URSI, International Symposium on Solar Terrestrial Physics, Innsbruck, Austria, May 29-June 3, 19

Astronomy and Astrophysics

Astronomy

1

Atmospheric Diffusion, Jupiter Atmosphere, Planetary Magnetospheres, Radiation Belts, Spaceborne Astronomy, Diffusion Coefficient, Electron Energy, Energy Dissipation, Magnetohydrodynamic Stability, Pioneer 10 Space Probe, Pioneer 11 Space Probe, Pitch (Inclination), Jupiter, Pioneer 10, Pioneer 11, Radiation, Flux, Observations, Particles, Diffusion, Polarization, Electric Fields, Wind, Atmosphere, Electrons, Ions, Clouds, Sodium, Sulfur, Absorption, Charged Particles

Scientific paper

An attempt is made to interpret Pioneer 10 and 11 data on the Jupiter radiation belts. The observed radiation belts seem to be populated by radial diffusion from an external source. The diffusion coefficient seems to be derived from fluctuations in the polarization electric field produced by neutral winds in the Jovian atmosphere, which is coupled to the magnetosphere by equipotential B-field lines. Radiation-belt electrons lose energy and change their equatorial pitch angles as a result of synchrotron emission. Radiation-belt ions and electrons both may be subject to pitch-angle diffusion caused by waves that the respective particle anisotropies have created through plasma instabilities. Finally, these ions and electrons seem to experience absorption by the inner Jovian satellites in a manner that may depend on the species and energy of the incident radiation-belt particle.

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