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DOI: 10.1002/2016GL068992
Title:
Magnetospheric Multiscale observations of large-amplitude, parallel, electrostatic waves associated with magnetic reconnection at the magnetopause
Author: Ergun R.E.; Holmes J.C.; Goodrich K.A.; Wilder F.D.; Stawarz J.E.; Eriksson S.; Newman D.L.; Schwartz S.J.; Goldman M.V.; Sturner A.P.; Malaspina D.M.; Usanova M.E.; Torbert R.B.; Argall M.; Lindqvist P.-A.; Khotyaintsev Y.; Burch J.L.; Strangeway R.J.; Russell C.T.; Pollock C.J.; Giles B.L.; Dorelli J.J.C.; Avanov L.; Hesse M.; Chen L.J.; Lavraud B.; Le Contel O.; Retino A.; Phan T.D.; Eastwood J.P.; Oieroset M.; Drake J.; Shay M.A.; Cassak P.A.; Nakamura R.; Zhou M.; Ashour-Abdalla M.; André M.
Source Publication: Geophysical Research Letters
ISSN: 0094-8999
EISSN: 1944-8730
Publishing Year: 2016
Volume: 43, Issue:11
pages begin: 5626
pages end: 5634
Language: 英语
Keyword: beam mode ; electron acoustic ; electron diffusion region ; ion acoustic ; large-amplitude waves ; magnetic reconnection
Scopus Keyword: Diffusion ; Electric field effects ; Electric fields ; Electrons ; Electrostatics ; Magnetism ; Magnetopause ; Magnetosphere ; Plasma diagnostics ; Plasma stability ; beam mode ; Electron diffusion ; Large amplitude waves ; Magnetic reconnections ; Magnetospheric multi scale ; Nonlinear characteristics ; Parallel electric fields ; Two stream instability ; Magnetoplasma
English Abstract: We report observations from the Magnetospheric Multiscale satellites of large-amplitude, parallel, electrostatic waves associated with magnetic reconnection at the Earth's magnetopause. The observed waves have parallel electric fields (E||) with amplitudes on the order of 100 mV/m and display nonlinear characteristics that suggest a possible net E||. These waves are observed within the ion diffusion region and adjacent to (within several electron skin depths) the electron diffusion region. They are in or near the magnetosphere side current layer. Simulation results support that the strong electrostatic linear and nonlinear wave activities appear to be driven by a two stream instability, which is a consequence of mixing cold (<10 eV) plasma in the magnetosphere with warm (~100 eV) plasma from the magnetosheath on a freshly reconnected magnetic field line. The frequent observation of these waves suggests that cold plasma is often present near the magnetopause. ©2016. American Geophysical Union. All Rights Reserved.
Related Link: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977098183&doi=10.1002%2f2016GL068992&partnerID=40&md5=8a6fb50e591d05d0a7528e906a196b6b
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Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/9962
Appears in Collections:科学计划与规划
气候变化与战略

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Affiliation: Department of Astrophysical and Planetary Sciences, University of Colorado Boulder, Boulder, CO, United States

Recommended Citation:
Ergun R.E.,Holmes J.C.,Goodrich K.A.,et al. Magnetospheric Multiscale observations of large-amplitude, parallel, electrostatic waves associated with magnetic reconnection at the magnetopause[J]. Geophysical Research Letters,2016-01-01,43(11).
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