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

作　　者：贺艺华 杨昶 何兆国 张择龙 肖伏良 

机构地区：[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

出　　处：《Plasma Science and Technology》2013年第9期866-870,共5页等离子体科学和技术（英文版）

基　　金：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 HunanProvince;the Construct Program of the Key Discipline in Hunan Province,China

摘　　要：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.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.

关 键 词：correlated data wave-particle interaction electron energization whistler-mode waves 

分 类 号：O53[理学—等离子体物理]