气候变化领域集成服务门户(CCPortal): MMS Observation of Secondary Magnetic Reconnection Beside Ion-Scale Flux Rope at the Magnetopause

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DOI	10.1029/2020GL089075
	MMS Observation of Secondary Magnetic Reconnection Beside Ion-Scale Flux Rope at the Magnetopause
	Dong X.-C.; Dunlop M.W.; Wang T.-Y.; Trattner K.J.; Russell C.T.; Giles B.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	Using high-resolution data from Magnetospheric Multiscale (MMS) mission, we report an in situ observation of a secondary reconnection electron diffusion region (EDR) beside the leading edge of an ion-scale flux rope at the magnetopause. This reconnection EDR is characterized by strong electron current and electron jet reversal, a normal Hall electric field, unmagnetized electrons with nongyrotropic distributions, a large parallel electric field, and strong energy dissipation. The ion-scale flux rope beside the EDR consists of a force-free structure with diameter of only ~3 ion inertial lengths. Our observation of secondary reconnection beside the flux rope gives further evidence that flux ropes can be created and evolved in the reconnection exhaust region. ©2020. The Authors.
英文关键词	Electric fields; Electrons; Energy dissipation; Ions; Magnetopause; Electron diffusion; Hall electric field; High resolution data; In-situ observations; Ion inertial length; Large parallel electric fields; Magnetic reconnections; Magnetospheric multiscale missions; Rope; diffusion; electric field; electron; energy dissipation; jet; magnetopause; magnetosphere; observational method
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169856
作者单位	RAL Space, STFC, Oxfordshire, United Kingdom; School of Space and Environment, Beihang University, Beijing, China; Key Laboratory of Space Environment Monitoring and Information Processing, Ministry of Industry and Information Technology, Beijing, China; LASP, University of Colorado Boulder, Boulder, CO, United States; Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States
推荐引用方式 GB/T 7714	Dong X.-C.,Dunlop M.W.,Wang T.-Y.,et al. MMS Observation of Secondary Magnetic Reconnection Beside Ion-Scale Flux Rope at the Magnetopause[J],2020,47(16).
APA	Dong X.-C.,Dunlop M.W.,Wang T.-Y.,Trattner K.J.,Russell C.T.,&Giles B..(2020).MMS Observation of Secondary Magnetic Reconnection Beside Ion-Scale Flux Rope at the Magnetopause.Geophysical Research Letters,47(16).
MLA	Dong X.-C.,et al."MMS Observation of Secondary Magnetic Reconnection Beside Ion-Scale Flux Rope at the Magnetopause".Geophysical Research Letters 47.16(2020).