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Asymmetric Lunar Magnetic Perturbations Produced by Reflected Solar Wind Particles
Alternative TitleWOS:000529247200001
Zhang, Tian-Xin; Zhang, Hui; Lai, Hai-Rong; Zhong, Jun; Liu, Li-Bo; Wei, Yong; Cao, Jin-Bin; Cui, Jun25; Zhu, Chang-Bo; Fu, Sui-Yan; Wan, Wei-Xing
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2020
Volume893Issue:2Pages:L36
DOI10.3847/2041-8213/ab8640
ISSN2041-8205
Language英语
KeywordSolar wind Lunar magnetic fields Pickup ions FIELD MOON SURFACE WAKE PROSPECTOR SIMULATION ANOMALIES IONS MARS
AbstractMagnetic 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.
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7514
Collection中国科学院国家空间科学中心
Affiliation1.[Zhang, Tian-Xin
2.Zhang, Hui
3.Zhong, Jun
4.Liu, Li-Bo
5.Wei, Yong
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
7.[Zhang, Tian-Xin
8.Zhang, Hui
9.Zhong, Jun
10.Liu, Li-Bo
11.Wei, Yong
12.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
13.[Zhang, Tian-Xin
14.Zhang, Hui
15.Zhong, Jun
16.Liu, Li-Bo
17.Wei, Yong
18.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
19.[Zhang, Tian-Xin
20.Zhang, Hui
21.Zhong, Jun
22.Liu, Li-Bo
23.Wei, Yong
24.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing 100029, Peoples R China
25.[Lai, Hai-Rong
26.Sun Yat Sen Univ, Sch Atmospher Sci, Planetary Environm & Astrobiol Res Lab, Zhuhai 519082, Peoples R China
27.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China
28.Chinese Acad Sci, Natl Space Sci Ctr, Beijing Key Lab Space Environm Explorat, Beijing 100190, Peoples R China
29.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
Recommended Citation
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):L36.
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),L36.
MLA Zhang, Tian-Xin,et al."Asymmetric Lunar Magnetic Perturbations Produced by Reflected Solar Wind Particles".ASTROPHYSICAL JOURNAL LETTERS 893.2(2020):L36.
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