Observation and Modeling of Geostationary Orbit Electron Energization Induced by Enhanced Dayside Whistler-Mode Waves

HE Yihua (贺艺华); YANG Chang (杨昶); HE Zhaoguo (何兆国); ZHANG Zelong (张择龙); et al.

doi:10.1088/1009-0630/15/9/06

Plasma Science and Technology > 2013 > 15(9): 866-870. > DOI: 10.1088/1009-0630/15/9/06

HE Yihua (贺艺华), YANG Chang (杨昶), HE Zhaoguo (何兆国), ZHANG Zelong (张择龙), et al.. Observation and Modeling of Geostationary Orbit Electron Energization Induced by Enhanced Dayside Whistler-Mode Waves[J]. Plasma Science and Technology, 2013, 15(9): 866-870. DOI: 10.1088/1009-0630/15/9/06

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Observation and Modeling of Geostationary Orbit Electron Energization Induced by Enhanced Dayside Whistler-Mode Waves

1 School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410004, China 2 State Key Laboratory of Space Weather, Beijing 100190, China

Funds: supported by National Natural Science Foundation of China (Nos.40925014, 41274165), the Specialized Research Fund for State Key Laboratories, the Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, and the Construct Program of the Key Discipline in Hunan Province, China

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Received Date: June 25, 2012

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Abstract

Abstract

We provide correlated observations of enhanced dayside whistler-mode waves and energetic electron acceleration collected by the CLUSTER and GOES satellites during the 23∼24 September 2001 storm. Energetic (>0.6 MeV) electron fluxes are found to increase significantly during the recovery phase and the main phase, by a factor of ∼50 higher than the prestorm level. These high electron fluxes occur when strong dayside whistler-mode waves are present. Two-dimensional (2D) numerical simulations are carried out and the results demonstrate that the dayside whistler-mode wave can contribute to such enhancements in electron flux within 24 h, consistent with the observation.
- correlated data,
- wave-particle interaction,
- electron energization,
- whistler- mode waves

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