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Statistical Properties of Solar Wind Upstream of Mars: MAVEN Observations

文献类型：期刊论文

作者Liu, Di2,3; Rong, Zhaojin2,3,4; Gao, Jiawei2,3; He, Jiansen5; Klinger, Lucy6; Dunlop, Malcolm Wray1,7; Yan, Limei2,3,4; Fan, Kai2,3,4; Wei, Yong2,3,4; Fan,Kai
刊名ASTROPHYSICAL JOURNAL
出版日期2021-04-01
卷号911期号:2页码:10
ISSN号0004-637X
DOI10.3847/1538-4357/abed50
英文摘要Using the data sets of Mars Atmosphere and Volatile EvolutioN and OMNI for the period 2014 October 10-2020 February 14 and the heliocentric distance of 1-1.66 au, we investigate the statistical properties of solar wind upstream of Mars for the first time. The key parameters, including interplanetary magnetic field (IMF), proton density (N), bulk velocity ( divide V divide ), and dynamic pressure (P (dyn)), are surveyed with regard to variations of solar activity level and heliocentric distance. We find that the parameters divide IMF divide , N, and P (dyn) monotonously decrease with heliocentric distance. Both divide IMF divide and P (dyn) are generally stronger at a higher solar activity level (F (10.7) >= 70 sfu), while such activity has little relevance to N. In contrast, divide V divide basically keeps a median of about 370 km s(-1) and is insensitive to the solar activity level and heliocentric distance. We also find that the IMF upstream of Mars at the higher solar activity level has a much smaller spiral angle in the inward sector; thus, IMF seems "straighter" than that in the outward sector, although that is not so for the inward sector of the upstream of Earth. Our statistical survey can be used as a reference for upstream solar wind of Mars at 1.4 similar to 1.7 au, and could benefit the studies on solar wind as well as the Martian space environment.
资助项目National Natural Science Foundation of China[41922031] ; National Natural Science Foundation of China[41774188] ; National Natural Science Foundation of China[42074207] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201904]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000643729700001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/99841]  
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Rong, Zhaojin
作者单位1.Beihang Univ, Sch Astronaut, Space Sci Inst, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Mohe Observ Geophys, Beijing, Peoples R China
5.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
6.Peking Univ, Beijing Int Ctr Math Res, Beijing, Peoples R China
7.RAL, Chilton, Oxon, England
推荐引用方式
GB/T 7714		 Liu, Di,Rong, Zhaojin,Gao, Jiawei,et al. Statistical Properties of Solar Wind Upstream of Mars: MAVEN Observations[J]. ASTROPHYSICAL JOURNAL,2021,911(2):10.
APA Liu, Di.,Rong, Zhaojin.,Gao, Jiawei.,He, Jiansen.,Klinger, Lucy.,...&Fan,Kai.(2021).Statistical Properties of Solar Wind Upstream of Mars: MAVEN Observations.ASTROPHYSICAL JOURNAL,911(2),10.
MLA Liu, Di,et al."Statistical Properties of Solar Wind Upstream of Mars: MAVEN Observations".ASTROPHYSICAL JOURNAL 911.2(2021):10.

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来源：地质与地球物理研究所

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