globalchange  > 科学计划与规划
DOI: 10.1002/2016GL068691
论文题名:
Subsolar magnetopause observation and kinetic simulation of a tripolar guide magnetic field perturbation consistent with a magnetic island
作者: Eriksson S.; Cassak P.A.; Retinò A.; Mozer F.S.
刊名: Geophysical Research Letters
ISSN: 0094-9153
EISSN: 1944-8884
出版年: 2016
卷: 43, 期:7
起始页码: 3035
结束页码: 3041
语种: 英语
英文关键词: guide magnetic field ; magnetic island ; reconnection exhaust
Scopus关键词: Magnetic fields ; Magnetism ; Magnetopause ; Plasma density ; Plasma simulation ; Wave plasma interactions ; Guide magnetic field ; Hall magnetic field ; Kinetic simulation ; Magnetic island ; Magnetopause crossings ; Out-of-plane magnetic fields ; Polar satellites ; Reconnection exhaust ; Magnetoplasma
英文摘要: The Polar satellite recorded two reconnection exhausts within 6 min on 1 April 2001 across a subsolar magnetopause that displayed a symmetric plasma density, but different out-of-plane magnetic field signatures for similar solar wind conditions. The first magnetopause crossing displayed a bipolar guide field variation in a weak external guide field consistent with a symmetric Hall field from a single X line. The subsequent crossing represents the first observation of a tripolar guide field perturbation at Earth's magnetopause in a strong guide field. This perturbation consists of a significant guide field enhancement between two narrow guide field depressions. A particle-in-cell simulation for the prevailing conditions across this second event resulted in a magnetic island between two simulated X lines across which a tripolar guide field developed consistent with the observation. The simulated island supports a scenario whereby Polar encountered the asymmetric quadrupole Hall magnetic fields between two X lines for symmetric conditions across the magnetopause. © 2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979467481&doi=10.1002%2f2016GL068691&partnerID=40&md5=5f8237e4259a1c5f6dd675a102f34f45
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10116
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 for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States

Recommended Citation:
Eriksson S.,Cassak P.A.,Retinò A.,et al. Subsolar magnetopause observation and kinetic simulation of a tripolar guide magnetic field perturbation consistent with a magnetic island[J]. Geophysical Research Letters,2016-01-01,43(7).
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