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Properties of Plasmoids Observed in Saturn's Dayside and Nightside Magnetodisc

文献类型：期刊论文

作者Xu, Y.2; Guo, R. L.3,4; Yao, Z. H.1,2; Pan, D. X.2; Dunn, W. R.5; Ye, S-Y6; Zhang, B.7; Sun, Y. X.8; Wei, Y.2; Coates, A. J.5
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2021-12-28
卷号48期号:24页码:9
ISSN号0094-8276
关键词magnetosphere flux rope plasma
DOI10.1029/2021GL096765
英文摘要Plasmoid is a key structure for transferring magnetic flux and plasma in planetary magnetospheres. At Earth, plasmoids are key media which transfer energy and mass in the "Dungey Cycle." For giant planets, plasmoids are primarily generated by the dynamic processes associated with "Vasyliunas cycle." It is generally believed that planetary magnetotails are favorable for producing plasmoids. Nevertheless, recent studies reveal that magnetic field lines could be sufficiently stretched to allow magnetic reconnection in Saturn's dayside magnetodisc. In the study, we report direct observations of plasmoids in Saturn's dayside magnetodisc for the first time. Moreover, we perform a statistical investigation on the global plasmoid electron density distribution. The results show an inverse correlation between the nightside plasmoid electron density and local time, and the maximum plasmoid electron density around prenoon local time on the dayside. These results are consistent with the magnetospheric circulation picture associated with the "Vasyliunas cycle."
WOS关键词MAGNETIC-FIELD ; MAGNETOTAIL ; RECONNECTION ; TAIL ; EVOLUTION
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB 41000000] ; National Science Foundation of China[42074211] ; Key Research Program of the Institute of Geology and Geophysics CAS[IGGCAS-201904] ; UCL-MSSL solar system consolidated Grant from STFC, UK[ST/S000240/1] ; General Research Fund[17300719] ; General Research Fund[17308520] ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China[41922060] ; International Space Science Institute in Beijing (ISSI-BJ)
WOS研究方向Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000735897000069
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; General Research Fund ; General Research Fund ; General Research Fund ; General Research Fund ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; General Research Fund ; General Research Fund ; General Research Fund ; General Research Fund ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; General Research Fund ; General Research Fund ; General Research Fund ; General Research Fund ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; UCL-MSSL solar system consolidated Grant from STFC, UK ; General Research Fund ; General Research Fund ; General Research Fund ; General Research Fund ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; Excellent Young Scientists Fund Hong Kong and Macau of the National Natural Science Foundation of China ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ)
源URL[http://ir.iggcas.ac.cn/handle/132A11/103948]  
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Yao, Z. H.
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Univ Liege, STAR Inst, Lab Planetary & Atmospher Phys, Liege, Belgium
4.Shandong Univ, Lab Opt Astron & Solar Terr Environm, Inst Space Sci, Sch Space Sci & Phys, Weihai, Shandong, Peoples R China
5.UCL Mullard Space Sci Lab, Dorking, Surrey, England
6.Southern Univ Sci & Technol SUSTech, Dept Earth & Space Sci, Shenzhen, Peoples R China
7.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
8.Peking Univ, Sch Earth & Space Sci, Inst Space Phys & Appl Technol, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Y.,Guo, R. L.,Yao, Z. H.,et al. Properties of Plasmoids Observed in Saturn's Dayside and Nightside Magnetodisc[J]. GEOPHYSICAL RESEARCH LETTERS,2021,48(24):9.
APA Xu, Y..,Guo, R. L..,Yao, Z. H..,Pan, D. X..,Dunn, W. R..,...&Coates, A. J..(2021).Properties of Plasmoids Observed in Saturn's Dayside and Nightside Magnetodisc.GEOPHYSICAL RESEARCH LETTERS,48(24),9.
MLA Xu, Y.,et al."Properties of Plasmoids Observed in Saturn's Dayside and Nightside Magnetodisc".GEOPHYSICAL RESEARCH LETTERS 48.24(2021):9.

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来源：地质与地球物理研究所

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