Induced magnetosphere and its outer boundary at Venus

被引：50

作者：

Zhang, T. L. ^{[1
,2
]}

Delva, M. ^{[1
]}

Baumjohann, W. ^{[1
]}

Volwerk, M. ^{[1
]}

Russell, C. T. ^{[3
]}

Wei, H. Y. ^{[3
]}

Wang, C. ^{[2
]}

Balikhin, M. ^{[4
]}

Barabash, S. ^{[5
]}

Auster, H. -U. ^{[6
]}

Kudela, K. ^{[7
]}

机构：

[1] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

[2] Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100080, Peoples R China

[3] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA

[4] Univ Sheffield, Dept Automat Control & Syst Engn, Sheffield S1 3JD, S Yorkshire, England

[5] Swedish Inst Space Phys, SE-98128 Kiruna, Sweden

[6] Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Extraterrestr Phys, D-38106 Braunschweig, Germany

[7] Slovak Acad Sci, Inst Expt Phys, Kosice 04001, Slovakia

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS | 2008年 / 113卷

基金：

美国国家航空航天局; 英国科学技术设施理事会;

关键词：

D O I：

10.1029/2008JE003215

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The induced magnetosphere at Venus consists of regions near the planet and its wake for which the magnetic pressure dominates all other pressure contributions. Initial Venus Express measurements indicate a well-defined outer boundary, the magnetopause, of the induced magnetosphere. This magnetopause acts as an obstacle to deflect the solar wind. Across this boundary, the magnetic field exhibits abrupt directional changes and pronounced draping. In this paper, we examine the structure of the magnetopause using Venus Express magnetic measurements. We find that the magnetopause is a directional discontinuity resembling either a tangential or a rotational discontinuity depending on the interplanetary magnetic field orientation.

引用

页数：9

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