Physics
Scientific paper
May 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977phdt.........1t&link_type=abstract
Ph.D. Thesis Iowa Univ., Iowa City.
Physics
Diffusion Coefficient, Jupiter (Planet), Natural Satellites, Radial Flow, Electric Fields, Planetary Magnetic Fields, Planetary Magnetospheres
Scientific paper
The principles of radial diffusion of energetic charged particles in a planetary magnetosphere by violation of the third adiabatic invariant are discussed. The three mechanisms by which such diffusion would most likely be driven at Jupiter are described and the derivation of the corresponding radial diffusion coefficients is reviewed. In particular, it is determined that the diffusion coefficients arising from fluctuations in the planetary magnetic field or in the convection electric field should, for protons with a magnetic moment of mu= 1.7 MeV/gauss, vary as L to the 10th power, where L is the magnetic shell parameter; for the same particles, the diffusion coefficient arising from the fluctuations in the ionospheric dynamo field should vary as L to the 3rd power. For electrons with mu= 300 MeV/gauss the diffusion coefficients for magnetic, electric, or ionospheric wind fluctuations vary as L to the 10th power, L to the 7th power, and L to the 3rd power, respectively.
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