Is the flow-aligned component of IMF really able to impact the magnetic field structure of Venusian magnetotail?

被引：14

作者：

Rong, Z. J. ^{[1
,2
]}

Stenberg, G. ^{[3
]}

Wei, Y. ^{[1
,2
]}

Chai, L. H. ^{[1
,2
]}

Futaana, Y. ^{[3
]}

Barabash, S. ^{[3
]}

Wan, W. X. ^{[1
,2
]}

Shen, C. ^{[4
]}

机构：

[1] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China

[2] Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China

[3] Swedish Inst Space Phys, Kiruna, Sweden

[4] Harbin Inst Technol, Shenzhen, Peoples R China

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2016年 / 121卷 / 11期

基金：

中国国家自然科学基金;

关键词：

EXPRESS OBSERVATIONS; BOW SHOCK; INDUCED MAGNETOSPHERE; CONDUCTING SPHERE; FLAPPING MOTION; CURRENT SHEETS; SOLAR-WIND; PLASMA; MARS; LOCATION;

D O I：

10.1002/2016JA022413

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An earlier statistical survey suggested that the flow-aligned component of upstream interplanetary magnetic field (IMF) may play an important role in controlling the lobe asymmetries of the Venusian magnetotail. The tail current sheet would be displaced and the magnetic field configuration would show asymmetries with respect to the current sheet. The asymmetries are expected to be more evident when the flow-aligned component becomes dominant. Here with carefully selected cases as well as a statistical study based on Venus Express observations in the near-Venus tail, we show that the lobe asymmetries of the magnetic field as well as the displacement of the current sheet are common characteristics of the Venusian magnetotail. However, the asymmetries and the displacement of the current sheet do not show a significant dependence on the flow-aligned component of the IMF. Our results suggest that the flow-aligned component of IMF cannot penetrate into the near magnetotail to impact the magnetic field structure.

引用

页码：10978 / 10993

页数：16

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