Limits on ion radial diffusion coefficients in Saturn's inner magnetosphere

Details Limits on ion radial diffusion coefficients in Saturn's inner magnetosphere Limits on ion radial diffusion coefficients in Saturn's inner magnetosphere

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91.1391p&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Feb. 1, 1986, p. 1391-1396.

Physics

29

Diffusion Coefficient, Ionic Diffusion, Magnetospheric Ion Density, Planetary Magnetospheres, Radial Distribution, Saturn Atmosphere, Rates (Per Time), Toroidal Plasmas, Saturn, Magnetosphere, Ions, Diffusion, Lecp, Density, Particles, Low Energy Charged Particle Instrument, Waves, Interaction, Absorption, Satellites, Procedure

Scientific paper

Voyager low energy charged particle (LECP) ion phase space densities at constant first and second adiabatic invariants have been used to place limits on the rate of radial diffusion of energetic ions (30 keV to 1 MeV) in Saturn's inner magnetosphere. Upper and lower limits to the radial diffusion coefficient, DLL, are deduced from physical requirements on the rates of diffusion and loss. If DLL is near the lower limit found in this work, then satellite sweeping accounts for a large fraction of the total ion losses. If DLL is near the upper limit, then ion losses can approach 10% of the strong diffusion rate. In this case, ion losses are dominated by wave-particle interactions, and sweeping losses are relatively unimportant.

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