Trapped radiation belts of Saturn - First look

Details Trapped radiation belts of Saturn - First look Trapped radiation belts of Saturn - First look

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sci...207..425f&link_type=abstract

Science, vol. 207, Jan. 25, 1980, p. 425-431.

Computer Science

8

Pioneer 11 Space Probe, Planetary Magnetospheres, Radiation Belts, Saturn (Planet), Space Exploration, Cosmic Ray Albedo, Particle Diffusion, Particle Flux Density, Radiation Detectors, Saturn Rings, Solar Wind, Saturn, Radiation Belt, Pioneer 11, Magnetosphere, Energetic Particles, Intensity, Comparisons, Distribution, Satellites, Rings, Absorption, Diffusion, Opacity, Cosmic Rays, Source Medium, Equipment, Data, Trapped Radiation Detector, Protons, Flux, Analysis, Parameters

Scientific paper

Data on the magnetosphere of Saturn obtained with the trapped radiation detector package on board the Pioneer 11 spacecraft is reported. Radiation belt profiles determined by the trapped radiation detectors on Pioneer 10 and 11 indicate that Saturn's magnetosphere is intermediate in size between those of the earth and Jupiter, with particle intensities similar to those of the earth. The outer region of the Saturn magnetosphere is found to contain particles of lower energy than the outer region, being strongly influenced by the time-varying solar wind. The moons and rings of Saturn are observed to be effective absorbers of trapped particles, confirming the discoveries of the F ring, the Pioneer ring division and the moon 1979 S 2. Particle diffusion rates are used to estimate a cross-sectional area of greater than 7 x 10 to the 13th sq cm and an opacity greater than 0.00001 for the F ring. It is suggested that cosmic-ray albedo neutron decay be studied as a possible source of energetic particles in the inner magnetosphere of Saturn.

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