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A Statistical Survey of Low-Frequency Magnetic Fluctuations at Saturn

文献类型：期刊论文

作者Pan, Dong-Xiao5; Yao, Zhong-Hua5; Guo, Rui-Long1; Bonfond, Bertrand1; Wei, Yong5; Dunn, William3; Zhang, Bin-Zheng2; Zong, Qiu-Gang4; Zhou, Xu-Zhi4; Grodent, Denis1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2021-02-01
卷号126期号:2页码:9
关键词low‐ frequency waves magnetosphere planetary system
ISSN号2169-9380
DOI10.1029/2020JA028387
英文摘要Low-frequency waves are closely related to magnetospheric energy dissipation processes. The Cassini spacecraft explored Saturn's magnetosphere for over 13 years, until September 2017, covering a period of more than a complete solar cycle. Using this rich heritage data set, we systematically investigated key physical parameters of low-frequency waves in Saturn's magnetosphere, including their local time distribution and the dependence on solar activity. We found that the wave activity peaked in the near noon sector. For the nightside, the wave intensity also appeared to peak pre and postmidnight. Due to the limited local time coverage for each solar phase, we were not able to draw a firm conclusion on the wave's dependence on solar activity. In general, the wave power showed a monotonically decreasing trend toward larger distances in nightside sectors especially during the declining phase, which implied that low-frequency waves mainly originate from the relatively inner regions of the magnetosphere. On the dayside, stronger waves were mostly located at/within similar to 25 R-s, near the magnetopause. The study shows a global picture of low-frequency waves in Saturn's magnetosphere, providing important implications for how magnetospheric energy dissipates into Saturn's polar ionosphere and atmosphere.
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; National Natural Science Foundation of China[42004149] ; National Natural Science Foundation of China[41704169] ; National Natural Science Foundation of China[42074211] ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; PRODEX program ; Science and Technology Facilities Council (STFC) ; European Space Agency (ESA)[4000120752/17/NL/MH] ; International Space Science Institute in Beijing (ISSI-BJ) ; Key Research Program of the Institute of Geology and Geophysics CAS[IGGCAS-201904] ; Belgian Federal Science Policy Office
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000627265100094
出版者AMER GEOPHYSICAL UNION
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; PRODEX program ; PRODEX program ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; European Space Agency (ESA) ; European Space Agency (ESA) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Belgian Federal Science Policy Office ; Belgian Federal Science Policy Office ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; PRODEX program ; PRODEX program ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; European Space Agency (ESA) ; European Space Agency (ESA) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Belgian Federal Science Policy Office ; Belgian Federal Science Policy Office ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; PRODEX program ; PRODEX program ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; European Space Agency (ESA) ; European Space Agency (ESA) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Belgian Federal Science Policy Office ; Belgian Federal Science Policy Office ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming Post-Docs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; PRODEX program ; PRODEX program ; Science and Technology Facilities Council (STFC) ; Science and Technology Facilities Council (STFC) ; European Space Agency (ESA) ; European Space Agency (ESA) ; International Space Science Institute in Beijing (ISSI-BJ) ; International Space Science Institute in Beijing (ISSI-BJ) ; Key Research Program of the Institute of Geology and Geophysics CAS ; Key Research Program of the Institute of Geology and Geophysics CAS ; Belgian Federal Science Policy Office ; Belgian Federal Science Policy Office
源URL[http://ir.iggcas.ac.cn/handle/132A11/101061]  
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, Zhong-Hua
作者单位1.Univ Liege, STAR Inst, Lab Phys Atmospher & Planetaire, Liege, Belgium
2.Univ Hong Kong, Dept Earth Sci, Hong Kong, Peoples R China
3.Univ Coll London, Mullard Space Sci Lab, Dorking, Surrey, England
4.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Dong-Xiao,Yao, Zhong-Hua,Guo, Rui-Long,et al. A Statistical Survey of Low-Frequency Magnetic Fluctuations at Saturn[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2021,126(2):9.
APA Pan, Dong-Xiao.,Yao, Zhong-Hua.,Guo, Rui-Long.,Bonfond, Bertrand.,Wei, Yong.,...&Wan, Wei-Xing.(2021).A Statistical Survey of Low-Frequency Magnetic Fluctuations at Saturn.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,126(2),9.
MLA Pan, Dong-Xiao,et al."A Statistical Survey of Low-Frequency Magnetic Fluctuations at Saturn".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126.2(2021):9.

入库方式： OAI收割

来源：地质与地球物理研究所

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