Asymmetric Transport of the Earth's Polar Outflows by the Interplanetary Magnetic Field
文献类型：期刊论文
| 作者 | Wang, Juan; Huang, Can; Ge, Yasong S.; Dui, Aimin; Feng, Xueshang; Li, Kun |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2019 |
| 卷号 | 881期号:2页码:L34 |
| 关键词 | Earth magnetic fields magnetohydrodynamics (MHD) plasmas solar-terrestrial relations solar wind |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ab385d |
| 英文摘要 | The 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. |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/7249]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 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):L34. |
| 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),L34. |
| MLA | Wang, Juan,et al."Asymmetric Transport of the Earth's Polar Outflows by the Interplanetary Magnetic Field".ASTROPHYSICAL JOURNAL LETTERS 881.2(2019):L34. |
入库方式： OAI收割
来源：国家空间科学中心
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