In Situ Acceleration Process for Radiation Belt Electrons

Details In Situ Acceleration Process for Radiation Belt Electrons In Situ Acceleration Process for Radiation Belt Electrons

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm41d..03t&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SM41D-03

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2716 Energetic Particles: Precipitating, 2720 Energetic Particles: Trapped, 2730 Magnetosphere: Inner, 2778 Ring Current, 2784 Solar Wind/Magnetosphere Interactions

Scientific paper

Geomagnetically trapped electrons can interact with magnetospheric plasma waves leading to pitch-angle scattering and energy diffusion. Intense waves are excited by the injection of plasmasheet particles into the inner magnetosphere during enhanced magnetospheric convection. Under appropriate conditions, wave energy can be absorbed by the high-energy electron population, leading to stochastic local acceleration. Acceleration of electrons to MeV energies can occur on timescales comparable to a day during resonant interactions with whistler-mode chorus emissions in the recovery phase of magnetic storms. Such local acceleration, which is most efficient in the low density region exterior to the Earth's plasmapause, is a universal process and should occur other planetary magnetospheres.

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