气候变化领域集成服务门户(CCPortal): Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes

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DOI	10.1029/2020GL087268
	Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes
	Burkholder B.L.; Nykyri K.; Ma X.; Rice R.; Fuselier S.A.; Trattner K.J.; Pritchard K.R.; Burch J.L.; Petrinec S.M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	On 17 October 2016, Magnetospheric Multiscale (MMS) sampled an electron diffusion region (EDR) embedded in an electron-scale current sheet within a mixed portion of the high-latitude magnetosheath adjacent to the magnetopause. We analyze the generalized Ohm's law, dissipation, and electron velocity distributions inside the EDR. The velocities, magnetic fields, and densities observed in the magnetosheath and magnetosphere indicate the magnetopause was unstable to the Kelvin-Helmholtz instability, which can form electron-scale current sheets. Alternatively, a current sheet was observed in the solar wind at L1 40 min before the MMS observations, which could have been compressed by the bow shock initiating reconnection. Hundreds of keV particles near the EDR may have been locally accelerated. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Magnetopause; Bow shocks; Current sheets; Electron diffusion; Electron velocity distributions; High Latitudes; Kelvin- helmholtz instabilities; Magnetosheaths; Magnetospheric multi scale; Electrons; diffusion; Kelvin-Helmholtz instability; latitude; magnetic field; magnetopause; magnetosphere; solar wind
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/169965
作者单位	Center for Space and Atmospheric Research, Embry-Riddle Aeronautical University, Daytona Beach, FL, United States; Department of Space Science and Engineering, Southwest Research Institute, San Antonio, TX, United States; Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; Lockheed Martin Advanced Technology Center, Palo Alto, CA, United States
推荐引用方式 GB/T 7714	Burkholder B.L.,Nykyri K.,Ma X.,et al. Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes[J],2020,47(15).
APA	Burkholder B.L..,Nykyri K..,Ma X..,Rice R..,Fuselier S.A..,...&Petrinec S.M..(2020).Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes.Geophysical Research Letters,47(15).
MLA	Burkholder B.L.,et al."Magnetospheric Multiscale Observation of an Electron Diffusion Region at High Latitudes".Geophysical Research Letters 47.15(2020).