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Model investigation of the influence of the crustal magnetic field on the oxygen ion distribution in the near Martian tail
Li L(李磊); Zhang YT(张艺腾); 北京8701信箱
Department太阳系探测联合研究中心
Source PublicationJournal of Geophysical Research-Space Physics
2009
Volume114Pages:A06215
ISSN0148-0227
Language英语
KeywordSolar-wind Interaction Mars Acceleration Simulation Wake
AbstractTo investigate the influence of the Martian crustal magnetic field on the acceleration and escape of the planetary ions in the near tail region, the distributions of planetary oxygen ions are studied by means of test particle simulation in an electromagnetic environment created by a recent multispecies Magnetohydrodynamics (MHD) simulation of the solar wind interaction with Mars, with crustal field included or excluded. Results under different crustal field conditions are compared to determine the effects of crustal field. It is found that when crustal field is present, draped magnetic field lines are replaced by closed field lines in the near tail region and the electric field is also intensified because of the Hall effect. As a result, the oxygen ion distribution reveals distinct stream structures in the tail region when crustal field is included, with one hot streamat the central tail and two cold streams at the flank of the tail. Some energetic ions inside the hot stream are accelerated toward the planet, instead of escaping downstream.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1549
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Li L,Zhang YT,北京8701信箱. Model investigation of the influence of the crustal magnetic field on the oxygen ion distribution in the near Martian tail[J]. Journal of Geophysical Research-Space Physics,2009,114:A06215.
APA 李磊,张艺腾,&北京8701信箱.(2009).Model investigation of the influence of the crustal magnetic field on the oxygen ion distribution in the near Martian tail.Journal of Geophysical Research-Space Physics,114,A06215.
MLA 李磊,et al."Model investigation of the influence of the crustal magnetic field on the oxygen ion distribution in the near Martian tail".Journal of Geophysical Research-Space Physics 114(2009):A06215.
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