IGGCAS OpenIR  > 地球与行星物理院重点实验室
Asymmetric Transport of the Earth's Polar Outflows by the Interplanetary Magnetic Field
Wang, Juan1,2,3; Huang, Can1; Ge, Yasong S.1; Dui, Aimin1; Feng, Xueshang4,5; Li, Kun6
2019-08-20
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
Volume881Issue:2Pages:6
AbstractThe polar outflows, as an important plasma source of the Earth's magnetosphere, usually exhibit significant north- south asymmetries, which can strongly affect the plasma distributions in the magnetotail lobe and perhaps contribute to the substorm triggering. But the mechanism of the asymmetric transport of these outflows is still unclear. In this Letter, 3D global magnetohydrodynamic (MHD) simulations are performed to investigate the development of the polar outflows after their escapes from the inner boundary under influences of the interplanetary magnetic field (IMF) B-x. It is found that the velocity of northern polar outflows is much stronger than the south. We suggest that the IMF B-x causes the north-south asymmetries in the magnetospheric configuration, and subsequently, great differences of the force and mass distributions appear between the two hemispheres, which lead to the significant north-south asymmetries in the transport of the polar outflows. We also discuss the differences in the acceleration mechanisms of the polar outflows between the northward and southward IMF cases.
KeywordEarth magnetic fields magnetohydrodynamics (MHD) plasmas solar-terrestrial relations solar wind
DOI10.3847/2041-8213/ab385d
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
WOS KeywordIONOSPHERIC OUTFLOW ; WIND ; PLASMA ; MAGNETOSPHERE ; ACCELERATION ; SIMULATION ; IONS
Language英语
Funding ProjectNational Natural Science Foundation of China[41604144] ; National Natural Science Foundation of China[41531073] ; National Natural Science Foundation of China[41474144] ; National Natural Science Foundation of China[41674168] ; National Natural Science Foundation of China[41774176] ; National Natural Science Foundation of China[41704164] ; China Postdoctoral Science Foundation[2018M630198] ; Specialized Research Fund for State Key Laboratories
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Specialized Research Fund for State Key Laboratories ; Specialized Research Fund for State Key Laboratories
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000482015200003
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/92980
Collection地球与行星物理院重点实验室
Corresponding AuthorHuang, Can
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Beijing Normal Univ, Sch Syst Sci, Beijing, Peoples R China
3.Chinese Acad Sci, State Key Lab Space Weather, Beijing, Peoples R China
4.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, SIGMA Weather Grp, Beijing, Peoples R China
5.Harbin Inst Technol, Inst Space Sci & Appl Technol, Lab Space Weather Storms, Shenzhen, Peoples R China
6.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China
First Author AffilicationKey Laboratory of Earth and Planetary Physics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Earth and Planetary Physics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Juan,Huang, Can,Ge, Yasong S.,et al. Asymmetric Transport of the Earth's Polar Outflows by the Interplanetary Magnetic Field[J]. ASTROPHYSICAL JOURNAL LETTERS,2019,881(2):6.
APA Wang, Juan,Huang, Can,Ge, Yasong S.,Dui, Aimin,Feng, Xueshang,&Li, Kun.(2019).Asymmetric Transport of the Earth's Polar Outflows by the Interplanetary Magnetic Field.ASTROPHYSICAL JOURNAL LETTERS,881(2),6.
MLA Wang, Juan,et al."Asymmetric Transport of the Earth's Polar Outflows by the Interplanetary Magnetic Field".ASTROPHYSICAL JOURNAL LETTERS 881.2(2019):6.
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