气候变化领域集成服务门户(CCPortal): Characteristics of Energetic Electrons Near Active Magnetotail Reconnection Sites: Statistical Evidence for Local Energization

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DOI	10.1029/2020GL090087
	Characteristics of Energetic Electrons Near Active Magnetotail Reconnection Sites: Statistical Evidence for Local Energization
	Cohen I.J.; Turner D.L.; Mauk B.H.; Bingham S.T.; Blake J.B.; Fennell J.F.; Burch J.L.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:1
英文摘要	Magnetic reconnection is a universal process where energy is transferred from magnetic fields to particles. However, it remains unclear whether this transfer of energy includes the direct energization of particles to high energies (i.e., >10s of keV). We compare the spectral indices of energetic (50–200 keV) electrons from six magnetotail electron diffusion region candidates encountered by MMS with those from “quiet-time” plasma sheet crossings to test whether energetic electron enhancements result from direct energization at/near the reconnection site or simply focusing high-energy populations that do not originate from the nearby X-line and already exist in the plasma sheet along the newly reconnected field lines. The study suggests that active reconnection can be a source of localized electron energization. However, the EDR spectra are not outside the range of those from the quiet-time plasma sheet, which surprisingly still often have very energetic (up to and beyond 200 keV) electrons present. © 2020 The John Hopkins University Applied Physics Laboratory.
英文关键词	Electron scattering; Energy transfer; Magnetoplasma; Plasma sheaths; Electron diffusion; Energetic electron; Localized electrons; Magnetic reconnections; Magnetotail reconnection; Reconnection sites; Spectral indices; Statistical evidence; Electrons; diffusion; electron; magnetic field; magnetotail; plasma; spectrum
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/169283
作者单位	The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States; The Aerospace Corporation, El Segundo, CA, United States; Southwest Research Institute, San Antonio, TX, United States
推荐引用方式 GB/T 7714	Cohen I.J.,Turner D.L.,Mauk B.H.,et al. Characteristics of Energetic Electrons Near Active Magnetotail Reconnection Sites: Statistical Evidence for Local Energization[J],2021,48(1).
APA	Cohen I.J..,Turner D.L..,Mauk B.H..,Bingham S.T..,Blake J.B..,...&Burch J.L..(2021).Characteristics of Energetic Electrons Near Active Magnetotail Reconnection Sites: Statistical Evidence for Local Energization.Geophysical Research Letters,48(1).
MLA	Cohen I.J.,et al."Characteristics of Energetic Electrons Near Active Magnetotail Reconnection Sites: Statistical Evidence for Local Energization".Geophysical Research Letters 48.1(2021).