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DOI: 10.1002/2016GL070404
论文题名:
Observations of large-amplitude, parallel, electrostatic waves associated with the Kelvin-Helmholtz instability by the magnetospheric multiscale mission
作者: Wilder F.D.; Ergun R.E.; Schwartz S.J.; Newman D.L.; Eriksson S.; Stawarz J.E.; Goldman M.V.; Goodrich K.A.; Gershman D.J.; Malaspina D.M.; Holmes J.C.; Sturner A.P.; Burch J.L.; Torbert R.B.; Lindqvist P.-A.; Marklund G.T.; Khotyaintsev Y.; Strangeway R.J.; Russell C.T.; Pollock C.J.; Giles B.L.; Dorrelli J.C.; Avanov L.A.; Patterson W.R.; Plaschke F.; Magnes W.
刊名: Geophysical Research Letters
ISSN: 0094-8664
EISSN: 1944-8395
出版年: 2016
卷: 43, 期:17
起始页码: 8859
结束页码: 8866
语种: 英语
英文关键词: boundary layer ; electrostatic waves ; Kelvin-Helmholtz ; turbulence
Scopus关键词: Boundary layers ; Electric field effects ; Electric fields ; Electrostatics ; Magnetosphere ; Plasma turbulence ; Spacecraft ; Turbulence ; Electrostatic waves ; Ion plasma frequency ; Kelvin- helmholtz instabilities ; Kelvin-Helmholtz ; Magnetospheric multi scale ; Magnetospheric multiscale missions ; Multiple particles ; Stability analysis ; Atmospheric thermodynamics ; amplitude ; boundary layer ; electric field ; Kelvin-Helmholtz instability ; magnetic field ; magnetopause ; magnetosphere ; observational method ; plasma ; spacecraft ; stability analysis ; turbulence
英文摘要: On 8 September 2015, the four Magnetospheric Multiscale spacecraft encountered a Kelvin-Helmholtz unstable magnetopause near the dusk flank. The spacecraft observed periodic compressed current sheets, between which the plasma was turbulent. We present observations of large-amplitude (up to 100 mV/m) oscillations in the electric field. Because these oscillations are purely parallel to the background magnetic field, electrostatic, and below the ion plasma frequency, they are likely to be ion acoustic-like waves. These waves are observed in a turbulent plasma where multiple particle populations are intermittently mixed, including cold electrons with energies less than 10 eV. Stability analysis suggests a cold electron component is necessary for wave growth. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84984837657&doi=10.1002%2f2016GL070404&partnerID=40&md5=0eb8ad6a0fe0648465c2d15ca6ffe94f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9627
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: Laboratory of Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States

Recommended Citation:
Wilder F.D.,Ergun R.E.,Schwartz S.J.,et al. Observations of large-amplitude, parallel, electrostatic waves associated with the Kelvin-Helmholtz instability by the magnetospheric multiscale mission[J]. Geophysical Research Letters,2016-01-01,43(17).
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