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DOI: 10.1002/2015GL065248
论文题名:
Magnetotail dynamics at Mars: Initial MAVEN observations
作者: Di Braccio G.A.; Espley J.R.; Gruesbeck J.R.; Connerney J.E.P.; Brain D.A.; Halekas J.S.; Mitchell D.L.; McFadden J.P.; Harada Y.; Livi R.; Collinson G.; Hara T.; Mazelle C.; Jakosky B.M.
刊名: Geophysical Research Letters
ISSN: 0094-8480
EISSN: 1944-8211
出版年: 2015
卷: 42, 期:21
起始页码: 8828
结束页码: 8837
语种: 英语
英文关键词: current sheet dynamics ; energized planetary ions ; magnetic flux ropes ; magnetotail reconnection ; plasma sheet flapping ; substorm-like signatures
Scopus关键词: Dynamics ; Magnetic flux ; Magnetism ; Magnetosphere ; Plasma sheaths ; Rope ; Unloading ; Current sheets ; Magnetic flux ropes ; Magnetotail reconnection ; Plasma sheet ; Substorms ; Magnetoplasma ; current ring ; loading ; magnetic field ; magnetosphere ; magnetotail ; Mars ; Martian atmosphere ; observational method ; plasma ; spacecraft ; unloading
英文摘要: We report on the complex nature of the induced Martian magnetotail using simultaneous magnetic field and plasma measurements from the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. Two case studies are analyzed from which we identify (1) repetitive loading and unloading of tail magnetic flux as the field magnitude changes dramatically, exhibiting signatures similar to substorm activity within intrinsic magnetospheres; (2) multiple current sheet crossings indicative of plasma sheet flapping; (3) tailward flowing high-energy planetary ions (O+ and O2+), confined exclusively to the cross-tail current sheet, contributing to atmospheric escape; and (4) signatures of magnetic flux ropes, suggesting the occurrence of tail reconnection. These events illustrate the complexity of the Martian magnetotail as MAVEN provides key observations relevant to the unanswered questions of induced magnetosphere dynamics. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955194049&doi=10.1002%2f2015GL065248&partnerID=40&md5=0f70937d4494cf81a855d22dea2048ef
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8096
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: Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, United States

Recommended Citation:
Di Braccio G.A.,Espley J.R.,Gruesbeck J.R.,et al. Magnetotail dynamics at Mars: Initial MAVEN observations[J]. Geophysical Research Letters,2015-01-01,42(21).
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