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Title: A comparative study of energy and pitch angle diffusion during cyclotron resonance
Authors: Singh, U P
Singh, D P
Issue Date: Dec-1996
Publisher: NISCAIR-CSIR, India
Abstract: Adopting linear and non-linear theories of wave-particle interaction, the relative importance of pitch angle diffusion over particle energy diffusion is examined for different ELF/VLF waves at different equatorial and off-equatorial locations for L values lying between 2 and 8. The result shows that the pitch angle diffusion is important in the plasmasphere where 0.5, and the energy diffusion is important outside the plasmasphere where = 0.6-0.8 (here = f/fH, f being the wave frequency and fH, the electron gyrofrequency). As such, the result indicates the dominance of wavegrowth over particle precipitation outside the plasmasphere and is useful for interpretation of high latitude and polar emissions.
Page(s): 345-350
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.25(6) [December 1996]

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