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Bounce-Averaged Acceleration of Energetic Electrons by Whistler Mode Chorus in the Magnetosphere |
| XIAO Fu-Liang1,2;CHEN Liang-Xu1;ZHOU Qing-Hua1;HE Hui-Yong1;WEN Yong-Jun1 |
| 1School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410076
2State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100080 |
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| Cite this article: |
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XIAO Fu-Liang, CHEN Liang-Xu, ZHOU Qing-Hua et al 2007 Chin. Phys. Lett. 24 294-297 |
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Abstract We construct the bounce-averaged diffusion coefficients and study the bounce-averaged acceleration for energetic electrons in gyroresonance with whistler mode chorus. Numerical calculations have been performed for a band of chorus frequency distributed over a standard Gaussian spectrum specifically in the region near L=4.5, where peaks of the electron phase space density occur. It is found that whistler mode chorus can efficiently accelerate electrons and can increase the phase space density at energies of about 1MeV by more than one order of magnitude about one day, in agreement with the satellite observations during the recovery phase of magnetic storms.
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| Keywords:
94.20.Rr
52.35.Hr
94.30.Lr
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Published: 01 January 2007
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| PACS: |
94.20.Rr
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52.35.Hr
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(Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid))
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94.30.Lr
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(Magnetic storms, substorms)
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