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Total electron content depression in the nightside Martian ionosphere: statistical results from Mars Express MARSIS measurements and implications

文献类型：期刊论文

作者Cao, Yutian2; Niu, Dandan1; Liang, Wenjun2; Cui, Jun2,6; Wu, Xiaoshu2,6; Wan, Xin2; Zhong, Jiahao2; Li, Lei5; Rong, Zhaojin3,4; Wei, Yong3,4
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2023-02-01
卷号519期号:2页码:2262-2267
关键词planets and satellites: atmospheres planets and satellites: individual: terrestial planets
ISSN号0035-8711
DOI10.1093/mnras/stac3641
英文摘要Thermal electron depression and energetic electron depletion are two well-known features of the nightside Martian ionosphere. While the latter has been extensively studied in the past, there is no report of systematic and firm identification of the former and hence the correlation between them is unknown. Applying an automatic procedure to the Mars Express total electron content (TEC) measurements, we identify a large number of TEC depression features that amount to one-third of the available nightside measurements. Similar to the observation of energetic electron depletion, large amplitude TEC depression is more frequently observed near strong magnetic fields, as an expected result of the established solar-wind-driven scenario that the shielding of precipitating electrons by closed magnetic loops is responsible for the observed reduction in thermal electron density. However, small amplitude depression appears to be uniformly distributed across the Martian surface, implying an alternative origin yet to be determined. Contrary to our expectation, TEC depression and energetic electron depletion are not usually collocated, but this dilemma may simply reflect the complexity of the magnetic field topology with respect to the spacecraft trajectory.
WOS关键词MAGNETIC-FIELD ; DEPLETIONS ; IONIZATION ; ATMOSPHERE ; HOLES
资助项目Chinese Academy of Sciences (CAS) B-type Strategic Priority Program[XDB41000000] ; National Natural Science Foundation of China[42030201] ; National Natural Science Foundation of China[42261160643] ; National Natural Science Foundation of China[42274218] ; National Natural Science Foundation of China[42104170] ; China National Space Administration[D020105] ; China National Space Administration[D020104] ; CAS Institute of Geology and Geophysics[IGGCAS-201904]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000909578700008
出版者OXFORD UNIV PRESS
资助机构Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; CAS Institute of Geology and Geophysics ; CAS Institute of Geology and Geophysics ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; CAS Institute of Geology and Geophysics ; CAS Institute of Geology and Geophysics ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; CAS Institute of Geology and Geophysics ; CAS Institute of Geology and Geophysics ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; Chinese Academy of Sciences (CAS) B-type Strategic Priority Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China National Space Administration ; China National Space Administration ; CAS Institute of Geology and Geophysics ; CAS Institute of Geology and Geophysics
源URL[http://ir.iggcas.ac.cn/handle/132A11/106887]  
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Niu, Dandan
作者单位1.Harbin Inst Technol, Inst Space Sci & Appl Technol, Shenzhen 518000, Guangdong, Peoples R China
2.Sun Yat Sen Univ, Sch Atmospher Sci, Planetary Environm & Astrobiol Res Lab PEARL, Zhuhai 519082, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Sch Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
6.Ctr Excellence Comparat Planetol, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Yutian,Niu, Dandan,Liang, Wenjun,et al. Total electron content depression in the nightside Martian ionosphere: statistical results from Mars Express MARSIS measurements and implications[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,519(2):2262-2267.
APA Cao, Yutian.,Niu, Dandan.,Liang, Wenjun.,Cui, Jun.,Wu, Xiaoshu.,...&Wei, Yong.(2023).Total electron content depression in the nightside Martian ionosphere: statistical results from Mars Express MARSIS measurements and implications.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,519(2),2262-2267.
MLA Cao, Yutian,et al."Total electron content depression in the nightside Martian ionosphere: statistical results from Mars Express MARSIS measurements and implications".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 519.2(2023):2262-2267.

入库方式： OAI收割

来源：地质与地球物理研究所

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