Cluster Observation of Eelectrostatic Solitary Waves around Magnetic Null Point in Thin Current Sheet |
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| Authors: | LI Shi-You DENG Xiao-Hua ZHOU Meng YUAN Zhi-Gang WANG Jing-Fang LIN Xi LIN Min-Hui FU Song |
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| Affiliation: | Department of Space Physics, Wuhan University, Wuhan 430072Institute of Information and Engineering, Nanchang University, Nanchang 330031 |
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| Abstract: | Electrostatic solitary waves (ESWs) are observed in the vicinity of the magnetic null of the widely studied magnetic reconnection taking place at the near-earth tail when current sheet becomes dramatic thinning during substorm time on 1 October 2001. We use the Imada method for the 2-D reconnection model and study the characteristics of ESWs near the X-line region and the magnetic null points. The result shows that the amplitude of the observed ESWs in the vicinity of X-line region ranges from 0.1mV/m to 5mV/m, and the amplitude is larger near the magnetic null points. The generation mechanism and the role of ESWs associated with magnetic reconnection are also discussed. |
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| Keywords: | 94 30 -d 94 30 Ej 94 30 Gm 94 30 Tz |
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