Spatially Highly Resolved Solar-wind-induced Magnetic Field on Venus
文献类型：期刊论文
| 作者 | He, Maosheng2,5; Vogt, Joachim2; Dubinin, Eduard1; Zhang, Tielong3; Rong, Zhaojin4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 923期号:1页码:17 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ac2836 |
| 英文摘要 | The current work investigates the Venusian solar-wind-induced magnetosphere at a high spatial resolution using all Venus Express (VEX) magnetic observations through an unbiased statistical method. We first evaluate the predictability of the interplanetary magnetic field (IMF) during VEX's Venusian magnetospheric transits and then map the induced field in a cylindrical coordinate system under different IMF conditions. Our mapping resolves structures on various scales, ranging from the ionopause to the classical IMF draping. We also resolve two recently reported structures, a low-ionosphere magnetization over the terminator, and a global "looping" structure in the near magnetotail. In contrast to the reported IMF-independent cylindrical magnetic field of both structures, our results illustrate their IMF dependence. In both structures, the cylindrical magnetic component is more intense in the hemisphere with an upward solar wind electric field (E (SW)) than in the opposite hemisphere. Under downward E (SW), the looping structure even breaks, which is attributable to an additional draped magnetic field structure wrapping toward -E (SW). In addition, our results suggest that these two structures are spatially separate. The low-ionosphere magnetization occurs in a very narrow region, at about 88 degrees-95 degrees solar zenith angle and 185-210 km altitude. A least-squares fit reveals that this structure is attributable to an antisunward line current with 191.1 A intensity at 179 +/- 10 km altitude, developed potentially in a Cowling channel. |
| WOS关键词 | PLASMA ENVIRONMENT ; EXPRESS ; ASYMMETRIES ; MAGNETOTAIL ; ATMOSPHERE ; BARRIER ; PICKUP ; MODEL ; MARS |
| 资助项目 | Deutsche Forschungsgemeinschaft[HE6915/1-1] ; Deutsche Forschungsgemeinschaft[TE664/4-1] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000730637700001 |
| 资助机构 | Deutsche Forschungsgemeinschaft ; Deutsche Forschungsgemeinschaft ; Deutsche Forschungsgemeinschaft ; Deutsche Forschungsgemeinschaft |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102958]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | He, Maosheng |
| 作者单位 | 1.Max Planck Inst Solar Syst Res, Gottingen, Germany 2.Jacobs Univ Bremen, Dept Phys & Earth Sci, Bremen, Germany 3.Austrian Acad Sci, Space Res Inst, Graz, Austria 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 5.Rostock Univ, Leibniz Inst Atmospher Phys, Kuhlungsborn, Germany |
| 推荐引用方式 GB/T 7714 | He, Maosheng,Vogt, Joachim,Dubinin, Eduard,et al. Spatially Highly Resolved Solar-wind-induced Magnetic Field on Venus[J]. ASTROPHYSICAL JOURNAL,2021,923(1):17. |
| APA | He, Maosheng,Vogt, Joachim,Dubinin, Eduard,Zhang, Tielong,&Rong, Zhaojin.(2021).Spatially Highly Resolved Solar-wind-induced Magnetic Field on Venus.ASTROPHYSICAL JOURNAL,923(1),17. |
| MLA | He, Maosheng,et al."Spatially Highly Resolved Solar-wind-induced Magnetic Field on Venus".ASTROPHYSICAL JOURNAL 923.1(2021):17. |
入库方式： OAI收割
来源：地质与地球物理研究所
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