Magnetic Field near Venus: Comparison between Solar Cycle 24 and Previous Cycles
文献类型：期刊论文
| 作者 | Chang, Qing1; Xu, Xiaojun1,2; Zhang, Tielong3; Chai, Lihui4; Wei, Yong4; Xu, Qi1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-11-10 |
| 卷号 | 867期号:2页码:9 |
| ISSN号 | 0004-637X |
| 关键词 | planets and satellites: individual (Venus) planets and satellites: magnetic fields planets and satellites: terrestrial planets Sun: activity solar wind |
| DOI | 10.3847/1538-4357/aae3e7 |
| 英文摘要 | Solar Cycle 24 has been proven to be the weakest cycle in solar activity in the last century. So far, most of the evidence has been presented near Earth at 1 au. In this study, we statistically studied the magnetic field of the solar wind near Venus and the induced magnetosphere of Venus using Pioneer Venus Orbiter (PVO) and Venus Express (VEX) observations. Our study provides fundamental and comparative results between different solar phases of Solar Cycle 24 at 0.72 au. The solar wind magnetic field strength near Venus shows a strongly correlated variation with solar activities. While the solar wind magnetic field direction, indicated by the Bx component ratio, is almost the same in different solar phases of the same cycle. It is significantly different between Cycle 24 and previous cycles. The magnetic field strength of the Venusian-induced magnetosphere is also closely correlated to solar activities. It is strongest at solar maximum and weakest at solar minimum. Observations from PVO and VEX clearly show that the magnetic barrier of the Venusian-induced magnetosphere is much weaker in Cycle 24 than in previous cycles. But the average magnetic fields of the ionosphere and the magnetotail are stronger in Cycle 24. |
| WOS关键词 | BOW SHOCK ; GEOMAGNETIC STORMS ; WIND ; MINIMUM ; IONOSPHERE ; LOCATION ; EXPRESS ; ORBITER ; ESCAPE ; ATMOSPHERE |
| 资助项目 | Science and Technology Development Fund of Macao SAR[008/2016/A1] ; Science and Technology Development Fund of Macao SAR[119/2017/A3] ; National Natural Science Foundation of China (NSFC)[41564007] ; National Natural Science Foundation of China (NSFC)[41731067] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000449532800006 |
| 资助机构 | Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Science and Technology Development Fund of Macao SAR ; Science and Technology Development Fund of Macao SAR ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/89425]  |
| 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 | Xu, Xiaojun |
| 作者单位 | 1.Macau Univ Sci & Technol, Space Sci Inst, Macau, Peoples R China 2.Inst Space Sci & Technol, Nanchang 330031, Jiangxi, Peoples R China 3.Harbin Inst Technol, Shenzhen, Peoples R China 4.Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Qing,Xu, Xiaojun,Zhang, Tielong,et al. Magnetic Field near Venus: Comparison between Solar Cycle 24 and Previous Cycles[J]. ASTROPHYSICAL JOURNAL,2018,867(2):9. |
| APA | Chang, Qing,Xu, Xiaojun,Zhang, Tielong,Chai, Lihui,Wei, Yong,&Xu, Qi.(2018).Magnetic Field near Venus: Comparison between Solar Cycle 24 and Previous Cycles.ASTROPHYSICAL JOURNAL,867(2),9. |
| MLA | Chang, Qing,et al."Magnetic Field near Venus: Comparison between Solar Cycle 24 and Previous Cycles".ASTROPHYSICAL JOURNAL 867.2(2018):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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