The Induced Global Looping Magnetic Field on Mars

The Induced Global Looping Magnetic Field on Mars
复制标题

火星上感应的全球环形磁场

DOI:
10.3847/2041-8213/aaff6e
复制
发表时间:
2019-01
影响因子:
7.9
通讯作者:
Zhong Jun
Zhong Jun
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Chai Lihui;Wan Weixing;Wei Yong;Zhang Tielong;Exner Willi;Fraenz Markus;Dubinin Eduard;Feyerabend Moritz;Motschmann Uwe;Ma Yingjuan;Halekas J S;Li Yi;Rong Zhaojin;Zhong Jun

文献摘要

参考文献

被引文献

相似文献

在火星上观测到了与覆盖的行星际磁场和地壳磁场不一致的磁场。考虑到金星磁尾周围全球环流磁场的发现以及火星和金星之间太阳风相互作用的相似性,我们利用火星大气和挥发分演化观测来研究火星上的全球环场及其形成机制。结果发现,火星上也存在一个全球环状场,因此,这种全球环状场是具有电离层的非磁化行星体的共同特征,因此在土卫六和近太阳彗星上也应该存在。火星和金星上的环状场对比表明,火星上的环状场更强。观测到太阳风围绕磁尾向−磁尾极区()的方位角流动。我们证明了环状场可以通过这些方位向流弯曲覆盖的场线而形成,并且这些方位向流与+方向的重离子羽流有关,预计火星上的重离子羽流比金星上的重离子羽流更强。讨论了与环状场有关的电流系统及其与火星和金星上的夜间电离层形成和离子逃逸的可能联系。
Magnetic fields inconsistent with draped interplanetary magnetic fields and crustal fields have been observed on Mars. Considering the discovery of a global looping magnetic field around the Venusian magnetotail and the similarities in the solar wind interactions between Mars and Venus, we use Mars Atmosphere and Volatile Evolution observations to investigate the global looping field on Mars and its formation mechanism. It is found that a global looping field also exists on Mars; therefore, this type of global looping field is a common feature of unmagnetized planetary bodies with ionospheres, and therefore should also exist on Titan and near-Sun comets. The comparison of the looping fields on Mars and Venus shows that the looping field is stronger on Mars. Solar wind azimuthal flows around the magnetotail toward the − magnetotail polar region ( ) are observed. We illustrate that the looping field can be formed by bending the draped field lines with these azimuthal flows, and that these azimuthal flows are associated with heavy ion plumes along the + direction that are expected to be stronger on Mars than Venus. The current system associated with the looping field and its possible connection with the nightside ionosphere formations and ion escapes on Mars and Venus are discussed.
DOI: 10.1002/2017gl076813
发表时间: 2018-03
影响因子: 5.2
作者:
E. Dubinin;M. Fraenz;M. Pätzold;J. Halekas;J. Mcfadden;J. Connerney;B. Jakosky;O. Vaisberg;L. Zelenyi
通讯作者: E. Dubinin;M. Fraenz;M. Pätzold;J. Halekas;J. Mcfadden;J. Connerney;B. Jakosky;O. Vaisberg;L. Zelenyi
DOI: 10.1002/2015gl065005
发表时间: 2015-11-16
影响因子: 5.2
作者:
Harada, Y.;Halekas, J. S.;Jakosky, B. M.
通讯作者: Jakosky, B. M.
DOI: 10.1029/gm066p0225
发表时间: 2013-03
期刊: --
影响因子: --
作者:
C. Russell
通讯作者: C. Russell
DOI: 10.1029/95ja03147
发表时间: 1996-02
影响因子: --
作者:
P. Newell;K. Lyons;C. Meng
通讯作者: P. Newell;K. Lyons;C. Meng
DOI: 10.1002/2015ja021904
发表时间: 2016-01
期刊: Journal of Geophysical Research: Space Physics
影响因子: --
作者:
L. Chai;Yong Wei;W. Wan;Tielong Zhang;Z. Rong;M. Fraenz;E. Dubinin;Hui Zhang;J. Zhong;X. Han;S. Barabash
通讯作者: L. Chai;Yong Wei;W. Wan;Tielong Zhang;Z. Rong;M. Fraenz;E. Dubinin;Hui Zhang;J. Zhong;X. Han;S. Barabash