Pitch Angle and L Dependence of Radial Diffusion Coefficients in a Compressed Dipole

Details Pitch Angle and L Dependence of Radial Diffusion Coefficients in a Compressed Dipole Pitch Angle and L Dependence of Radial Diffusion Coefficients in a Compressed Dipole

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm33a0442p&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SM33A-0442

Physics

2720 Energetic Particles: Trapped, 2774 Radiation Belts, 7807 Charged Particle Motion And Acceleration, 7867 Wave/Particle Interactions (2483, 6984)

Scientific paper

The influence of ULF waves in the Pc5 frequency range on radiation belt electrons in a compressed dipole magnetic field is examined. A model is developed describing magnetic and electric fields associated with poloidal-mode Pc5 ULF waves. The frequency and L dependence of the ULF wave power is included in this model by incorporating published ground-based magnetometer data. This ULF model is added to a compressed dipole and used as input to a three dimensional guiding center particle code. L and pitch angle dependence of the diffusion rates are analyzed. Results are then compared to previous diffusion coefficients calculated using a dipole magnetic field model for pitch angles ≤ 90°.

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