Electron flat-top distributions and cross-scale wave modulations   observed in the current sheet of geomagnetic tail

doi:10.1063/1.4997765

CORC > 北京大学 > 地球与空间科学学院

	Electron flat-top distributions and cross-scale wave modulations observed in the current sheet of geomagnetic tail
	Zhao, Duo ; Fu, Suiyan ; Parks, George K. ; Sun, Weijie ; Zong, Qiugang ; Pan, Dongxiao ; Wu, Tong
刊名	PHYSICS OF PLASMAS
	2017
关键词	IN-SITU EVIDENCE MAGNETIC RECONNECTION THEMIS FIELD PLASMA MAGNETOMETER MAGNETOTAIL INSTRUMENT EMISSIONS
DOI	10.1063/1.4997765
英文摘要	We present new observations of electron distributions and the accompanying waves during the current sheet activities at similar to 60 R-E in the geomagnetic tail detected by the ARTEMIS ( Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun) spacecraft. We find that electron flat-top distribution is a common feature near the neutral sheet of the tailward flowing plasmas, consistent with the electron distributions that are shaped in the reconnection region. Whistler mode waves are generated by the anisotropic electron temperature associated with the electron flat-top distributions. These whistler mode waves are modulated by low frequency ion scale waves that are possibly excited by the high-energy ions injected during the current sheet instability. The magnetic and electric fields of the ion scale waves are in phase with electron density variations, indicating that they are compressional ion cyclotron waves. Our observations present examples of the dynamical processes occurring during the current sheet activities far downstream of the geomagnetic tail. Published by AIP Publishing.; National Natural Science Foundation of China [41474139, 41421003]; Chinese Scholarship Council; NASA [NAS5-02099]; German Ministry for Economy and Technology; German Center for Aviation and Space (DLR) [50 OC 0302]; SCI(E); ARTICLE; 8; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471646]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhao, Duo,Fu, Suiyan,Parks, George K.,et al. Electron flat-top distributions and cross-scale wave modulations observed in the current sheet of geomagnetic tail[J]. PHYSICS OF PLASMAS,2017.
APA	Zhao, Duo.,Fu, Suiyan.,Parks, George K..,Sun, Weijie.,Zong, Qiugang.,...&Wu, Tong.(2017).Electron flat-top distributions and cross-scale wave modulations observed in the current sheet of geomagnetic tail.PHYSICS OF PLASMAS.
MLA	Zhao, Duo,et al."Electron flat-top distributions and cross-scale wave modulations observed in the current sheet of geomagnetic tail".PHYSICS OF PLASMAS (2017).