IGGCAS OpenIR  > 地球与行星物理院重点实验室
Statistics on the Magnetosheath Properties Related to Magnetopause Magnetic Reconnection
Zhang, Hui1,2,3,4; Fu, Suiyan5; Pu, Zuyin5; Lu, Jianyong6; Zhong, Jun1,2,3,4; Zhu, Changbo1,2,3,4; Wan, Weixing1,2,3,4; Liu, Libo1,2,3,4
2019-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume880Issue:2Pages:37
AbstractMagnetosheath properties, particularly those related to magnetopause magnetic reconnection (MR), are investigated in this study. (1) Asymmetries are found to exist in the distributions of plasma and magnetic field parameters in the magnetosheath. These asymmetries are related to the interplanetary magnetic field (IMF) orientation, and they are produced either on the bow shock or inside the magnetosheath. Thus, one must be very cautious in directly using the upstream solar wind and IMF properties as the magnetopause MR initiation conditions, since the magnetosheath parameters are not the same everywhere. (2) A unique method is introduced to estimate how much IMF magnetic flux passes through the magnetosphere via MR on either the low-latitude or the high-latitude magnetopause. This flux mainly varies with three independent parameters: the IMF clock angle theta(CL), the magnetosheath plasma beta, and the solar wind sound Mach number M-S. Surprisingly, the magnetic fluxes passing through the magnetosphere are comparable under the southward and northward IMF conditions. (3) The dipole tilt angle, the property from the inside of the magnetosphere, also controls the magnetosheath parameters. As the Earth's dipole tilt angle varies, the plasma pressure ridge shifts its location but remains near the magnetic equator. The stagnation point of the magnetosheath flow on the magnetopause, however, remains at the subsolar point no matter how large the dipole tilt angle is. These behaviors may be determinative of the locations of MR and the generation of flux transfer events on the magnetopause.
KeywordEarth magnetic reconnection plasmas solar wind
DOI10.3847/1538-4357/ab290e
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
WOS KeywordSOLAR-WIND CONTROL ; EARTHS BOW SHOCK ; DAYSIDE MAGNETOPAUSE ; STANDOFF DISTANCE ; MHD EQUATIONS ; FIELD ; DEPENDENCE ; MODEL ; MAGNETOSPHERE ; LOCATION
Language英语
Funding ProjectNational Science Foundation of China[41731068] ; National Science Foundation of China[41774175] ; National Science Foundation of China[41621063]
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000479029300004
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/92978
Collection地球与行星物理院重点实验室
Corresponding AuthorZhang, Hui
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
5.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
6.Nanjing Univ Informat Sci & Technol, Coll Math & Stat, Inst Space Weather, Nanjing, Jiangsu, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Hui,Fu, Suiyan,Pu, Zuyin,et al. Statistics on the Magnetosheath Properties Related to Magnetopause Magnetic Reconnection[J]. ASTROPHYSICAL JOURNAL,2019,880(2):37.
APA Zhang, Hui.,Fu, Suiyan.,Pu, Zuyin.,Lu, Jianyong.,Zhong, Jun.,...&Liu, Libo.(2019).Statistics on the Magnetosheath Properties Related to Magnetopause Magnetic Reconnection.ASTROPHYSICAL JOURNAL,880(2),37.
MLA Zhang, Hui,et al."Statistics on the Magnetosheath Properties Related to Magnetopause Magnetic Reconnection".ASTROPHYSICAL JOURNAL 880.2(2019):37.
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