| GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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Cluster Observation of Eelectrostatic Solitary Waves around Magnetic Null Point in Thin Current Sheet |
| LI Shi-You1, DENG Xiao-Hua1,2, ZHOU Meng1, YUAN Zhi-Gang1, WANG Jing-Fang1, LIN Xi1, LIN Min-Hui1, FU Song1 |
| 1Department of Space Physics, Wuhan University, Wuhan 4300722Institute of Information and Engineering, Nanchang University, Nanchang 330031 |
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| Cite this article: |
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LI Shi-You, DENG Xiao-Hua, ZHOU Meng et al 2010 Chin. Phys. Lett. 27 019401 |
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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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Received: 27 May 2009
Published: 30 December 2009
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