Hot flow anomalies at Venus

被引：38
作者：
Collinson, G. A. [1 ]
Sibeck, D. G. [1 ]
Masters, A. [2 ,5 ]
Shane, N. [2 ,5 ]
Slavin, J. A. [1 ,3 ]
Coates, A. J. [2 ]
Zhang, T. L. [4 ]
Sarantos, M. [1 ,6 ]
Boardsen, S. [1 ,6 ]
Moore, T. E. [1 ]
Barabash, S. [7 ]
机构：
[1] NASA, Goddard Space Flight Ctr, Heliophys Sci Div, Greenbelt, MD 20771 USA
[2] Univ Coll London, Mullard Space Sci Lab, Holmbury RH5 6NT, England
[3] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA
[4] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria
[5] UCL Birkbeck, Ctr Planetary Sci, London, England
[6] Univ Maryland, Goddard Planetary & Heliophys Inst, Baltimore, MD 21201 USA
[7] Swedish Inst Space Phys, S-98128 Kiruna, Sweden
来源：
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2012年 / 117卷
关键词：
EARTHS BOW SHOCK; DIAMAGNETIC CAVITIES UPSTREAM; SPACE PLASMAS; EXPRESS MISSION; SOLAR-WIND; DISCONTINUITY; ANALYZER; LOCATION; ASPERA-4;
D O I：
10.1029/2011JA017277
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a multi-instrument study of a hot flow anomaly (HFA) observed by the Venus Express spacecraft in the Venusian foreshock, on 22 March 2008, incorporating both Venus Express Magnetometer and Analyzer of Space Plasmas and Energetic Atoms (ASPERA) plasma observations. Centered on an interplanetary magnetic field discontinuity with inward convective motional electric fields on both sides, with a decreased core field strength, ion observations consistent with a flow deflection, and bounded by compressive heated edges, the properties of this event are consistent with those of HFAs observed at other planets within the solar system.
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页数：9
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