Asymmetric Lunar Magnetic Perturbations Produced by Reflected Solar Wind Particles
文献类型:期刊论文
作者 | Zhang, Tian-Xin1,2,3,8; Zhang, Hui1,2,3,8; Lai, Hai-Rong7; Zhong, Jun1,2,3,8; Liu, Li-Bo1,2,3,8; Wei, Yong1,2,3,8; Cao, Jin-Bin6; Cui, Jun7; Zhu, Chang-Bo5; Fu, Sui-Yan4 |
刊名 | ASTROPHYSICAL JOURNAL LETTERS |
出版日期 | 2020-04-01 |
卷号 | 893期号:2页码:8 |
ISSN号 | 2041-8205 |
关键词 | Solar wind Lunar magnetic fields Pickup ions |
DOI | 10.3847/2041-8213/ab8640 |
英文摘要 | Magnetic perturbations characterize the solar wind interaction of the Moon. The solar wind plasma absorption on the dayside surface produces large-scale field perturbations behind, i.e., the field enhancement in the central wake and reduction on the wake boundary. The solar wind repellence over local lunar magnetic anomalies (LMAs) leads to small-scale magnetic compressions ahead. In this study, the magnetic perturbations around the Moon are examined by using the observations from a near-Moon satellite mission, the Lunar Prospector, and they exhibit a clear left-right asymmetry in a coordinate system related to the solar wind convection electric field (). The magnetic field is observed to enhance before the left terminator that points to, while on the opposite side, it is not. The test particle simulations show that can divert the particles reflected over the LMAs to the left and then the solar wind pickup of these particles leads to the field enhancement observed before the left terminator. Behind the lunar terminator, the wake field reduction is also asymmetric. On the left, the field reduction is more remarkable and located closer to the central wake. The denser plasma, consisting of the background as well as the reflected solar wind particles, may produce a stronger diamagnetic current and thus more significant field reduction there. The asymmetric plasma and magnetic perturbations associated with the reflected particles may be a common and nonnegligible element during the solar wind interaction of a small-scale magnetic field, such as that of an asteroid or a comet. |
WOS关键词 | FIELD ; MOON ; SURFACE ; WAKE ; PROSPECTOR ; SIMULATION ; ANOMALIES ; IONS ; MARS |
资助项目 | B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; National Natural Science Foundation of China[41731068] ; National Natural Science Foundation of China[41774175] ; National Natural Science Foundation of China[41941001] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000529247200001 |
资助机构 | B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/96242] |
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 | Zhang, Hui |
作者单位 | 1.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 5.Chinese Acad Sci, Natl Space Sci Ctr, Beijing Key Lab Space Environm Explorat, Beijing 100190, Peoples R China 6.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China 7.Sun Yat Sen Univ, Sch Atmospher Sci, Planetary Environm & Astrobiol Res Lab, Zhuhai 519082, Peoples R China 8.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Tian-Xin,Zhang, Hui,Lai, Hai-Rong,et al. Asymmetric Lunar Magnetic Perturbations Produced by Reflected Solar Wind Particles[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,893(2):8. |
APA | Zhang, Tian-Xin.,Zhang, Hui.,Lai, Hai-Rong.,Zhong, Jun.,Liu, Li-Bo.,...&Wan, Wei-Xing.(2020).Asymmetric Lunar Magnetic Perturbations Produced by Reflected Solar Wind Particles.ASTROPHYSICAL JOURNAL LETTERS,893(2),8. |
MLA | Zhang, Tian-Xin,et al."Asymmetric Lunar Magnetic Perturbations Produced by Reflected Solar Wind Particles".ASTROPHYSICAL JOURNAL LETTERS 893.2(2020):8. |
入库方式: OAI收割
来源:地质与地球物理研究所
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