Spatial Evolution of Electrostatic Solitary Waves along Plasma Sheet Boundary Layer Adjacent to the Magnetic Reconnection X-Line  

作　　者：LI Shi-You ZHANG Shi-Feng DENG Xiao-Hua CAI Hong 李世友;张士峰;邓晓华;蔡洪(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073;Department of Space Physics,Wuhan University,Wuhan 430072;Nanchang University,Nanchang 330031)

机构地区：[1]College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073 [2]Department of Space Physics,Wuhan University,Wuhan 430072 [3]Nanchang University,Nanchang 330031

出　　处：《Chinese Physics Letters》2012年第8期313-317,共5页中国物理快报（英文版）

基　　金：Supported by the Post-Doctoral Research Program of China(42956);the National Basic Research Program of China;the National Natural Science Foundation of China under Grant No 40890163.

摘　　要：Analysis on the spatial structure of electrostatic solitary waves(ESWs)along the plasma sheet boundary layer(PSBL)near an on-going magnetic reconnection X-line is performed.Most of the ESWs in the PSBL of R3 region near reconnection X-line are propagating earthwards away from the reconnecting site.An analysis of their spatial structure shows that,when ESWs propagate along the ambient field in the PSBL,outwards from the magnetic reconnection X-line,their amplitude will finally attenuate and thus the electron hole will fade away but their spatial scale remains unchanged.However,the spatial structure of propagating ESWs evolves from 1-D-like to 2-D-like though totally in a 1-D structure.

关 键 词：SPATIAL PROPAGATING structure 

分 类 号：P35[天文地球—空间物理学]