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DOI | 10.1029/2019GL083032 |
Evidence of Electron Acceleration at a Reconnecting Magnetopause | |
Fu, H. S.1; Peng, F. Z.1; Liu, C. M.1; Burch, J. L.2; Gershman, D. G.3; Le Contel, O.4 | |
2019-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:11页码:5645-5652 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; France |
英文摘要 | It is still unknown nowadays whether magnetic reconnection-a process occurring both in the magnetotail and at the magnetopause-can intrinsically accelerate energetic electrons. Observations in the Earth's magnetotail usually indicate strong electron acceleration during magnetic reconnection, while observations at the Earth's magnetopause rarely show such features. With the recently launched Magnetospheric Multiscale (MMS) mission, here we report the first evidence of energetic-electron acceleration at a reconnecting magnetopause. We find that the acceleration of electrons, with energy up to 70 times their thermal energy, occurs in the magnetosheath side of the ion diffusion region and is associated with strong whistler waves. Such acceleration-not contaminated by the magnetospheric population-is attributed to nonadiabatic wave-particle interactions, as supported by analyses of the resonance condition. It manifests that energetic-electron acceleration can happen at the reconnecting magnetopause, like that in the tail. |
英文关键词 | magnetic reconnection electron acceleration magnetopause wave-particle interaction nonadiabatic leakage |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616200002 |
WOS关键词 | ENERGETIC ELECTRONS ; MMS OBSERVATIONS ; CONVERSION ; TOPOLOGY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/184066 |
专题 | 气候变化 |
作者单位 | 1.Beihang Univ, Sch Space & Environm, Beijing, Peoples R China; 2.Southwest Res Inst, San Antonio, TX USA; 3.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 4.UPMC, Ecole Polytech, CNRS, Lab Phys Plasmas, Palaiseau, France |
推荐引用方式 GB/T 7714 | Fu, H. S.,Peng, F. Z.,Liu, C. M.,et al. Evidence of Electron Acceleration at a Reconnecting Magnetopause[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(11):5645-5652. |
APA | Fu, H. S.,Peng, F. Z.,Liu, C. M.,Burch, J. L.,Gershman, D. G.,&Le Contel, O..(2019).Evidence of Electron Acceleration at a Reconnecting Magnetopause.GEOPHYSICAL RESEARCH LETTERS,46(11),5645-5652. |
MLA | Fu, H. S.,et al."Evidence of Electron Acceleration at a Reconnecting Magnetopause".GEOPHYSICAL RESEARCH LETTERS 46.11(2019):5645-5652. |
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