globalchange  > 气候减缓与适应
DOI: 10.1002/2017JA024664
Scopus记录号: 2-s2.0-85042408727
论文题名:
Generation Mechanism for Interlinked Flux Tubes on the Magnetopause
作者: FarinasPerez G.; Cardoso F.R.; Sibeck D.; Gonzalez W.D.; Facskó G.; Coxon J.C.; Pembroke A.D.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:2
起始页码: 1337
结束页码: 1355
语种: 英语
英文关键词: flux transfer events ; interlinked flux tubes ; magnetopause reconnection
英文摘要: We use a global magnetohydrodynamics simulation to analyze transient magnetic reconnection processes at the magnetopause. The solar wind conditions have been kept constant, and an interplanetary magnetic field with large duskward BY and southward BZ components has been imposed. Five flux transfer events (FTEs) with clear bipolar magnetic field signatures have been observed. We observed a peculiar structure defined as interlinked flux tubes (IFTs) in the first and fourth FTE, which had very different generation mechanisms. The first FTE originates as an IFTs and remains with this configuration until its final moment. However, the fourth FTE develops as a classical flux rope but changes its 3-D magnetic configuration to that of IFTs. This work studies the mechanism for generating IFTs. The growth of the resistive tearing instability has been identified as the cause for the first IFTs formation. We believe that the instability has been triggered by the accumulation of interplanetary magnetic field at the subsolar point where the grid resolution is very high. The evidence shows that two new reconnection lines form northward and southward of the subsolar region. The IFTs have been generated with all the classical signatures of a single flux rope. The other IFTs detected in the fourth FTE developed as a result of magnetic reconnection inside its complex and twisted magnetic fields, which leads to a change in the magnetic configuration from a flux rope of twisted magnetic field lines to IFTs. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114568
Appears in Collections:气候减缓与适应

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作者单位: NASA Goddard Space Flight Center, Greenbelt, MD, United States; INPE Instituto Nacional de Pesquisas Espaciais, São José dos Campos, São Paulo, Brazil; Catholic University of America, Washington, DC, United States; EEL/USP Escola de Engenharia de Lorena/Universidade de São Paulo, Lorena, Brazil; Research Center for Astronomy and Earth Sciences, Geodetic and Geophysical Institute, Hungarian Academy of Sciences, Sopron, Hungary; School of Physics and Astronomy, University of Southampton, Southampton, United Kingdom

Recommended Citation:
FarinasPerez G.,Cardoso F.R.,Sibeck D.,et al. Generation Mechanism for Interlinked Flux Tubes on the Magnetopause[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(2)
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