DOI: 10.1002/2016GL069578
论文题名: The effects of turbulence on three-dimensional magnetic reconnection at the magnetopause
作者: Price L. ; Swisdak M. ; Drake J.F. ; Cassak P.A. ; Dahlin J.T. ; Ergun R.E.
刊名: Geophysical Research Letters
ISSN: 0094-9589
EISSN: 1944-9320
出版年: 2016
卷: 43, 期: 12 起始页码: 6020
结束页码: 6027
语种: 英语
英文关键词: MMS
; reconnection
; turbulence
Scopus关键词: Magnetism
; Magnetopause
; Magnetosphere
; Magnetic reconnections
; Magnetospheric multiscale missions
; Reconnection
; Three dimensional particle-in-cell simulations
; Three dimensional simulations
; Three dimensional systems
; Turbulent environments
; Two-dimensional simulations
; Turbulence
; magnetic field
; magnetopause
; magnetosphere
; three-dimensional modeling
; turbulence
; viscosity
英文摘要: Two- and three-dimensional particle-in-cell simulations of a recent encounter of the Magnetospheric Multiscale Mission (MMS) with an electron diffusion region at the magnetopause are presented. While the two-dimensional simulation is laminar, turbulence develops at both the X line and along the magnetic separatrices in the three-dimensional simulation. The turbulence is strong enough to make the magnetic field around the reconnection island chaotic and produces both anomalous resistivity and anomalous viscosity. Each contribute significantly to breaking the frozen-in condition in the electron diffusion region. A surprise is that the crescent-shaped features in velocity space seen both in MMS observations and in two-dimensional simulations survive, even in the turbulent environment of the three-dimensional system. This suggests that MMS's measurements of crescent distributions do not exclude the possibility that turbulence plays an important role in magnetopause reconnection. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977520665&doi=10.1002%2f2016GL069578&partnerID=40&md5=db04d0d30a617ef119090928c9f12618
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10552
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: IREAP, University of Maryland, College Park, MD, United States
Recommended Citation:
Price L.,Swisdak M.,Drake J.F.,et al. The effects of turbulence on three-dimensional magnetic reconnection at the magnetopause[J]. Geophysical Research Letters,2016-01-01,43(12).