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Shock waves standing in the middle- and high-latitude magnetosheath from global MHD simulations
Guo, X. C.; Wang, C.; Sun, T. R.; Hu, Y. Q.; Guo, XC (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2011
Volume116Pages:A03206
ISSN0148-0227
Language英语
AbstractStanding shock waves (SSWs) are found to exist in the middle-and high-latitude magnetosheath through the global magnetohydrodynamic simulations. There are two (or one) SSWs for constant northward (or southward) interplanetary magnetic field (IMF); they extend into the magnetosheath region and further interact with the bow shock. Because of the extension of SSWs into the interplanetary space, especially when IMF turns southward, an indented bow shock emerges in front of the magnetosphere. The SSWs are excited by the indentations of the magnetopause in the supermagnetosonic solar wind flows in the magnetosheath; for northward IMF, one of the indentations is located in the cusp region and the other corresponds to the neutral point in the tailward of the cusp; for southward IMF, the indentation simply locates in the cusp region. We examine the Rankine-Hugoniot relations across the shock fronts and find the numerical model results are consistent with theoretical predictions.; Standing shock waves (SSWs) are found to exist in the middle-and high-latitude magnetosheath through the global magnetohydrodynamic simulations. There are two (or one) SSWs for constant northward (or southward) interplanetary magnetic field (IMF); they extend into the magnetosheath region and further interact with the bow shock. Because of the extension of SSWs into the interplanetary space, especially when IMF turns southward, an indented bow shock emerges in front of the magnetosphere. The SSWs are excited by the indentations of the magnetopause in the supermagnetosonic solar wind flows in the magnetosheath; for northward IMF, one of the indentations is located in the cusp region and the other corresponds to the neutral point in the tailward of the cusp; for southward IMF, the indentation simply locates in the cusp region. We examine the Rankine-Hugoniot relations across the shock fronts and find the numerical model results are consistent with theoretical predictions.
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/122/3270
Collection空间科学部
Corresponding AuthorGuo, XC (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Guo, X. C.,Wang, C.,Sun, T. R.,et al. Shock waves standing in the middle- and high-latitude magnetosheath from global MHD simulations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2011,116:A03206.
APA Guo, X. C.,Wang, C.,Sun, T. R.,Hu, Y. Q.,&Guo, XC .(2011).Shock waves standing in the middle- and high-latitude magnetosheath from global MHD simulations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,116,A03206.
MLA Guo, X. C.,et al."Shock waves standing in the middle- and high-latitude magnetosheath from global MHD simulations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116(2011):A03206.
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