Radial diffusion of low-energy ions in Saturn's radiation belts - A combined analysis of phase space density and satellite microsignature data

Details Radial diffusion of low-energy ions in Saturn's radiation belts - A combined analysis of phase space density and satellite microsignature data Radial diffusion of low-energy ions in Saturn's radiation belts - A combined analysis of phase space density and satellite microsignature data

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.6295h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, July 1, 1985, p. 6295-6303.

Physics

20

Ionic Diffusion, Planetary Magnetospheres, Radiation Belts, Saturn Atmosphere, Space Plasmas, Diffusion Coefficient, Dione, Radial Velocity, Space Density, Tethys, Saturn, Radial Diffusion, Ions, Radiation Belts, Analysis, Diffusion, Satellites, Magnetosphere, Charged Particles, Transport, Rhea, Magnetic Fields, Dipole, Models, Absorption, E Ring, Scattering, Tethys, Density, Dione, Comparisons

Scientific paper

Phase space densities for low-energy (80 MeV/G) ions in Saturn's inner magnetosphere are analyzed using solutions of the time-averaged radial diffusion equation for charged particle transport in a dipolar magnetic field. A series of distributed loss models ranging from satellite absorption only to satellite and maximum estimated Ring E absorption losses plus pitch angle scattering losses occurring at the strong diffusion limit in the inner magnetosphere are assumed. In each case the corresponding form of the magnetospheric radial diffusion coefficient which yields a minimum rms residual between model and data is determined. Independent constraints on the diffusion rate at specific L values derivable from satellite microsignatures in low-energy ions and electrons are considered and discussed.

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