Continuous lobe reconnectionin the mid-tail and its relationship to substorms:Cluster observations of continuous lobe reconnection in the mid-magneto tail  

作　　者：CAO Xin PU Zuyin ZHANG Hui FU Suiyan XIAO Chijie LIU Zhenxing J. B. cao A. Korth M. Frazen Q. G. Zong H. Reme K. H. Glassmeier 

机构地区：[1]School of Earth and Space Science, Peking University, Beijing 100871, China [2]The National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China [3]Center for Space Science and Applied Research, Chinese Academy ofSciences, Beijing 100080, China [4]Max-Planck-Institute for Solar System Research, Germany [5]CSR Boston University, US [6]CNSR, France [7]IGM, TU Braunschweig, Germany

出　　处：《Chinese Science Bulletin》2005年第18期2057-2063,共7页

基　　金：supported by the N ational Natural Science Foundation of China major program(Grant No.40390152);the State Key Basic Research Program(Grant No.G200000784);the XK 100010404 of Beijing City;the Space Weather Laboratory;Center for Space Science and Applied Research.CAS.

摘　　要：When the IMF turns southward, a great amount of magnetic energy is stored in the magnetotail, and the electric field across the magnetotail substantially en-hances. As long as magnetic reconnection (MR) in the mag-netotail initiates and continues, the magnetic field and plasma in the central plasma sheet are carried away to the near-Earth and down to the tail, the magnetic field and plasma in the lobe region enter the CPS and are involved in MR. We call this process “Continuous Lobe Reconnection (CLR)”. In this paper a detailed analysis of Cluster observa-tion of MR through 2001―2003 is made. Plenty of CLR events are found that led to considerable changes of tail con-figuration, appearance of BBF, as well as large-scale bubbles in which both plasma temperature and number density sub-stantially decrease. It is shown that in general CLR events last for dozens of minutes and have good correspondence to substorm initiation under the condition of continuous southward IMF.When the IMF turns southward, a great amount of magnetic energy is stored in the magnetotail, and the electric field across the magnetotail substantially enhances. As long as magnetic reconnection （MR） in the magnetotail initiates and continues, the magnetic field and plasma in the central plasma sheet are carried away to the near-Earth and down to the tail, the magnetic field and plasma in the lobe region enter the CPS and are involved in MR. We call this process “Continuous Lobe Reconnection （CLR）”. In this paper a detailed analysis of Cluster observation of MR through 2001--2003 is made. Plenty of CLR events are found that led to considerable changes of tail configuration, appearance of BBF, as well as large-scale bubbles in which both plasma temperature and number density substantially decrease. It is shown that in general CLR events last for dozens of minutes and have good correspondence to substorm initiation under the condition of continuous southward IMF.

关 键 词：圆裂片重接 亚暴 磁能 磁尾 等离子体 

分 类 号：P353[天文地球—空间物理学]