Observation and analysis of whistler-mode wave and electrostatic solitary waves within density depletion near magnetic reconnection X-line  

作　　者：LI ShiYou ZHANG ShiFeng CAI Hong DENG XiaoHua YANG HuaBo 

机构地区：[1]College of Aerospace Science and Engineering, National University of Defense Technology [2]Institute of Space Science and Technology, Nanchang University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2014年第4期652-658,共7页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.41304132);the 53-class General Financial Grant from the China Postdoctoral Science Foundation(Grant No.2013M532115);the Post-Doctoral Research Program of China(Grant No.42956);the National Basic Research Program of China

摘　　要：The PWI/WFC data onboard Geotail during one burst time interval when Geotail is skimming a magnetic reconnection diffusion region in the near-Earth magnetotail is carefully analyzed.Both the whistler-mode wave and the electrostatic solitary wave are found within the region with density depletion on the boundary layer near the magnetic reconnection X-line.The whistler-mode wave is electromagnetic whistler wave propagating quasi-parallel to the ambient field with a small angle between the wave vector and the ambient magnetic field.The whistler-mode wave associated with ESWs suggests that enhanced electromagnetic whistler-mode fluctuations can also be generated after the decay of the ESWs,which is different from the 2-D PIC simulation results.The PWI/WFC data onboard Geotail during one burst time interval when Geotail is skimming a magnetic reconnection diffusion region in the near-Earth magnetotail is carefully analyzed.Both the whistler-mode wave and the electrostatic solitary wave are found within the region with density depletion on the boundary layer near the magnetic reconnection X-line.The whistler-mode wave is electromagnetic whistler wave propagating quasi-parallel to the ambient field with a small angle between the wave vector and the ambient magnetic field.The whistler-mode wave associated with ESWs suggests that enhanced electromagnetic whistler-mode fluctuations can also be generated after the decay of the ESWs,which is different from the 2-D PIC simulation results.

关 键 词：magnetic reconnection whistler-mode electrostatic solitary waves density depletion 

分 类 号：O441[理学—电磁学]