Abstract
We present initial results on the temporal evolution of the phase space density (PSD) of the outer radiation belt energetic electrons driven by the superluminous R-X mode waves. We calculate diffusion rates in pitch angle and momentum assuming the standard Gaussian distributions in both wave frequency and wave normal angle at the location L=6.5. We solve a 2D momentum-pitch-angle Fokker-Planck equation using those diffusion rates as inputs. Numerical results show that R-X mode can produce significant acceleration of relativistic electrons around geostationary orbit, supporting previous findings that superluminous waves potentially contribute to dramatic variation in the outer radiation belt electron dynamics.
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Xiao, F., Chen, L., He, Y. et al. Dynamic evolution of outer radiation belt electrons driven by superluminous R-X mode waves. Sci. China Technol. Sci. 53, 2734–2738 (2010). https://doi.org/10.1007/s11431-010-4071-8
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DOI: https://doi.org/10.1007/s11431-010-4071-8