Physics
Scientific paper
Feb 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jgr....83..541c&link_type=abstract
Journal of Geophysical Research, vol. 83, Feb. 1, 1978, p. 541-552.
Physics
19
Electron Flux Density, Interplanetary Magnetic Fields, Jupiter (Planet), Solar Wind Velocity, Crossed Fields, Electron Diffusion, Fokker-Planck Equation, Interplanetary Medium, Pioneer 11 Space Probe, Stochastic Processes, Pioneer 10, Pioneer 11, Jupiter, Magnetic Fields, Magnetosphere, Solar Wind, Interplanetary Space, Imp 8
Scientific paper
Based on simultaneous measurements by Pioneer 11 of the 3-6 MeV Jovian electron flux, interplanetary magnetic field magnitude, and solar wind speed, the interplanetary transport of energetic particles is studied. It is found that corotating interaction regions (CIR's) greatly inhibit electron transport across the average field direction. Cross-field transport is also influenced by the degree of compression of the solar wind since CIR's are areas of compressed solar wind plasma. The propagation of Jovian electrons is studied by a model that includes the effects of CIR's. The model tests whether or not the three-dimensional convection-diffusion theory adequately describes the cross-field transport of electrons. The model is also valid for Jovian electron observations from earth-orbiting satellites. The model may be further applied to 1 AU from the sun where it is found that the cross-field diffusion of electrons explains why Jovian electrons are detected at the earth even during periods when the interplanetary magnetic field does not connect the earth directly to Jupiter.
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