Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm23c..03o&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SM23C-03
Physics
Plasma Physics
[2730] Magnetospheric Physics / Magnetosphere: Inner, [2774] Magnetospheric Physics / Radiation Belts, [7807] Space Plasma Physics / Charged Particle Motion And Acceleration, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
For geomagnetically trapped particles, when pitch-angle scattering occurs in the presence of drift-shell splitting, radial diffusion occurs as a consequence. Preliminary calculations indicate that during magnetic storms, radiation belt electrons in the vicinity of and beyond geosynchronous orbit may experience such radial diffusion. We present diffusion coefficients for such anomalous radial diffusion, computed for quiet and storm-time magnetic field configurations and plasma wave populations. We compare these calculations to published radial diffusion coefficients for ULF pulsations to determine when and where in phase space this anomalous radial diffusion is significant.
Claudepierre Seth G.
Fennell J.
Friedel Reiner H.
O'Brien Thomas P.
Roeder James L.
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