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  2. 地质与地球物理研究所
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  4. 中国科学院地球与行星物理重点实验室
Magnetic Fluctuations Associated With Small-Scale Magnetic Holes in the Martian Magnetosheath

文献类型：期刊论文

作者Chen, Yangjun1,2; Wu, Mingyu1; Xiao, Sudong1; Du, Aimin3; Wang, Guoqiang1; Chen, Yuanqiang1; Pan, Zonghao2; Zhang, Tielong1,2,4
刊名FRONTIERS IN ASTRONOMY AND SPACE SCIENCES
出版日期2022-04-04
卷号9页码:8
ISSN号2296-987X
关键词small-scale magnetic holes Mars magnetic fluctuations spectral indices magnetosheath
DOI10.3389/fspas.2022.858300
英文摘要Small-scale magnetic holes are common magnetic structures with a spatial scale always smaller than one thermal proton gyroradius ( rho i ) in the turbulent planetary magnetosheath. However, the contribution of small-scale MHs to dissipating energy and transporting particles in turbulent plasmas is still unclear. In this work, we investigate magnetic fluctuations around small-scale MHs in the Martian magnetosheath and compute their spectral indices in the kinetic frequency range. Our statistical results show that the spectral index value gradually decreases from the bow shock to the induced magnetosphere boundary at the nightside of Mars. Small-scale MHs have an obvious influence on the spectral indices of the magnetic fluctuations by their high-frequency components. For most events, these MHs lead to a variation in the spectral index in the kinetic range, and such a variation can be very significant in more than 20% of events. Our results indicate that because of the existence of MHs, using the spectral index alone as a diagnostic sometimes is not enough convincing during the analysis of turbulence in planetary environments.
WOS关键词SOLAR-WIND ; BOW SHOCK ; KINETIC SCALES ; TURBULENCE ; MARS ; BOUNDARY ; CLUSTER ; FIELD
资助项目NSFC[41774171] ; NSFC[41974205] ; NSFC[41774167] ; NSFC[41804157] ; NSFC[41904156] ; CNSA[D020103] ; Key Laboratory of Geospace Environment, CAS ; AS Center for Excellence in Comparative Planetology
WOS研究方向Astronomy & Astrophysics
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:000790957100001
资助机构NSFC ; NSFC ; CNSA ; CNSA ; Key Laboratory of Geospace Environment, CAS ; Key Laboratory of Geospace Environment, CAS ; AS Center for Excellence in Comparative Planetology ; AS Center for Excellence in Comparative Planetology ; NSFC ; NSFC ; CNSA ; CNSA ; Key Laboratory of Geospace Environment, CAS ; Key Laboratory of Geospace Environment, CAS ; AS Center for Excellence in Comparative Planetology ; AS Center for Excellence in Comparative Planetology ; NSFC ; NSFC ; CNSA ; CNSA ; Key Laboratory of Geospace Environment, CAS ; Key Laboratory of Geospace Environment, CAS ; AS Center for Excellence in Comparative Planetology ; AS Center for Excellence in Comparative Planetology ; NSFC ; NSFC ; CNSA ; CNSA ; Key Laboratory of Geospace Environment, CAS ; Key Laboratory of Geospace Environment, CAS ; AS Center for Excellence in Comparative Planetology ; AS Center for Excellence in Comparative Planetology
源URL[http://ir.iggcas.ac.cn/handle/132A11/105178]  
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Wu, Mingyu; Zhang, Tielong
作者单位1.Harbin Inst Technol, Inst Space Sci & Appl Technol, Shenzhen, Peoples R China
2.Univ Sci & Technol China, Chinese Acad Sci, Key Lab Geospace Environm, Hefei, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
4.Austrian Acad Sci, Space Res Inst, Graz, Austria
推荐引用方式
GB/T 7714		 Chen, Yangjun,Wu, Mingyu,Xiao, Sudong,et al. Magnetic Fluctuations Associated With Small-Scale Magnetic Holes in the Martian Magnetosheath[J]. FRONTIERS IN ASTRONOMY AND SPACE SCIENCES,2022,9:8.
APA Chen, Yangjun.,Wu, Mingyu.,Xiao, Sudong.,Du, Aimin.,Wang, Guoqiang.,...&Zhang, Tielong.(2022).Magnetic Fluctuations Associated With Small-Scale Magnetic Holes in the Martian Magnetosheath.FRONTIERS IN ASTRONOMY AND SPACE SCIENCES,9,8.
MLA Chen, Yangjun,et al."Magnetic Fluctuations Associated With Small-Scale Magnetic Holes in the Martian Magnetosheath".FRONTIERS IN ASTRONOMY AND SPACE SCIENCES 9(2022):8.

入库方式： OAI收割

来源：地质与地球物理研究所

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