Physics
Scientific paper
Nov 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.5793c&link_type=abstract
Journal of Geophysical Research, vol. 85, Nov. 1, 1980, p. 5793-5802.
Physics
6
Energetic Particles, Inner Radiation Belt, Planetary Magnetospheres, Protons, Saturn Atmosphere, Albedo, Carrier Injection, Neutrons, Pioneer 11 Space Probe, Planetary Radiation, Saturn, Magnetosphere, Charged Particles, Protons, Magnetopause, Data, Models, Flux, Diffusion, Density, Origin, Cosmic Rays, Neutrons, Latitude, Magnetic Fields, Dynamics, Albedo, Atmosphere, Rings, Injection, Intensity, Absorption, Particles
Scientific paper
The passage of Pioneer 11 through Saturn's magnetosphere revealed an especially intense region of high-energy particle fluxes that places unique constraints on models for sources of high-energy protons in the innermost radiation zones. Of special interest is the flux of protons with energies above 35 MeV which was measured with a fission cell in the innermost magnetosphere between the A ring and the orbit of Mimas. The negative phase space density gradients derived from the proton and electron observations in this region imply that steady-state inward diffusion from the outer magnetosphere is not an adequate source for these high-energy protons. In the present paper, the nature of the Crand source at Saturn is examined, and its significance for injection of high-energy protons into the region inside L = 4 is estimated.
Cooper John F.
Simpson André J.
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