globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069215
Electron energization and mixing observed by MMS in the vicinity of an electron diffusion region during magnetopause reconnection
Author: Chen L.-J.; Hesse M.; Wang S.; Gershman D.; Ergun R.; Pollock C.; Torbert R.; Bessho N.; Daughton W.; Dorelli J.; Giles B.; Strangeway R.; Russell C.; Khotyaintsev Y.; Burch J.; Moore T.; Lavraud B.; Phan T.; Avanov L.
Source Publication: Geophysical Research Letters
ISSN: 0094-9732
EISSN: 1944-9463
Publishing Year: 2016
Volume: 43, Issue:12
pages begin: 6036
pages end: 6043
Language: 英语
Keyword: electron diffusion region ; magnetic reconnection ; particle acceleration ; plasma heating
Scopus Keyword: Diffusion ; Distribution functions ; Electric fields ; Flow patterns ; Magnetopause ; Magnetoplasma ; Magnetosphere ; Mixing ; Plasma heating ; Electron diffusion ; Electron energization ; Four-point measurements ; Ion-skin-depth scale ; Magnetic field reversal ; Magnetic reconnections ; Magnetospheric multiscale missions ; Particle acceleration ; Electrons
English Abstract: Measurements from the Magnetospheric Multiscale (MMS) mission are reported to show distinct features of electron energization and mixing in the diffusion region of the terrestrial magnetopause reconnection. At the ion jet and magnetic field reversals, distribution functions exhibiting signatures of accelerated meandering electrons are observed at an electron out-of-plane flow peak. The meandering signatures manifested as triangular and crescent structures are established features of the electron diffusion region (EDR). Effects of meandering electrons on the electric field normal to the reconnection layer are detected. Parallel acceleration and mixing of the inflowing electrons with exhaust electrons shape the exhaust flow pattern. In the EDR vicinity, the measured distribution functions indicate that locally, the electron energization and mixing physics is captured by two-dimensional reconnection, yet to account for the simultaneous four-point measurements, translational invariant in the third dimension must be violated on the ion-skin-depth scale. ©2016. American Geophysical Union. All Rights Reserved.
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Document Type: 期刊论文
Appears in Collections:科学计划与规划

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Affiliation: NASA Goddard Space Flight Center, Greenbelt, MD, United States

Recommended Citation:
Chen L.-J.,Hesse M.,Wang S.,et al. Electron energization and mixing observed by MMS in the vicinity of an electron diffusion region during magnetopause reconnection[J]. Geophysical Research Letters,2016-01-01,43(12).
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