globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069205
论文题名:
Finite gyroradius effects in the electron outflow of asymmetric magnetic reconnection
作者: Norgren C.; Graham D.B.; Khotyaintsev Y.V.; André M.; Vaivads A.; Chen L.-J.; Lindqvist P.-A.; Marklund G.T.; Ergun R.E.; Magnes W.; Strangeway R.J.; Russell C.T.; Torbert R.B.; Paterson W.R.; Gershman D.J.; Dorelli J.C.; Avanov L.A.; Lavraud B.; Saito Y.; Giles B.L.; Pollock C.J.; Burch J.L.
刊名: Geophysical Research Letters
ISSN: 0094-8935
EISSN: 1944-8666
出版年: 2016
卷: 43, 期:13
起始页码: 6724
结束页码: 6733
语种: 英语
英文关键词: electron demagnetization ; electron diffusion region ; finite gyroradius effects ; magnetic reconnection
Scopus关键词: Demagnetization ; Magnetism ; Magnetosphere ; Spacecraft ; Current sheets ; Electron diffusion ; Electron distributions ; Guide field ; Gyroradius ; Magnetic reconnections ; Magnetospheric multi scale ; Reconnecting current sheets ; Electrons ; demagnetization ; electromagnetic field ; electron ; magnetic property ; magnetopause ; particle motion ; plasma ; shape ; spacecraft
英文摘要: We present observations of asymmetric magnetic reconnection showing evidence of electron demagnetization in the electron outflow. The observations were made at the magnetopause by the four Magnetospheric Multiscale (MMS) spacecraft, separated by ∼15 km. The reconnecting current sheet has negligible guide field, and all four spacecraft likely pass close to the electron diffusion region just south of the X line. In the electron outflow near the X line, all four spacecraft observe highly structured electron distributions in a region comparable to a few electron gyroradii. The distributions consist of a core with T∥>T⊥ and a nongyrotropic crescent perpendicular to the magnetic field. The crescents are associated with finite gyroradius effects of partly demagnetized electrons. These observations clearly demonstrate the manifestation of finite gyroradius effects in an electron-scale reconnection current sheet. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979010610&doi=10.1002%2f2016GL069205&partnerID=40&md5=ad522160575c741a42046ce0b015992f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9898
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Swedish Institute of Space Physics, Uppsala, Sweden

Recommended Citation:
Norgren C.,Graham D.B.,Khotyaintsev Y.V.,et al. Finite gyroradius effects in the electron outflow of asymmetric magnetic reconnection[J]. Geophysical Research Letters,2016-01-01,43(13).
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