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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
Examining the Magnetic Geometry of Magnetic Flux Ropes from the View of Single-point Analysis

文献类型：期刊论文

作者Zhang, Chi5,6; Rong, Zhaojin3,5,6; Shen, Chao2; Klinger, Lucy4; Gao, Jiawei5,6; Slavin, James A.7; Zhang, Yongcun1; Cui, Jun8; Wei, Yong3,5,6; Zhang,Chi
刊名ASTROPHYSICAL JOURNAL
出版日期2020-11-01
卷号903期号:1页码:15
ISSN号0004-637X
关键词Space plasmas Magnetic fields Astrophysical magnetism Planetary magnetosphere Planetary science Planetary boundary layers Solar coronal mass ejections
DOI10.3847/1538-4357/abba16
英文摘要Magnetic flux ropes, characterized as magnetic field lines that wrap and rotate around a central axis, are observed ubiquitously in the space-plasma environment. Accurately examining the physical parameters (e.g., axis orientation, helical handedness, current density, curvature radius, and size) of flux ropes is essential for studying their evolution and associated dynamics. The geometric parameters of flux ropes can be resolved by a cluster of at least four spacecraft with the separation scale much smaller than the flux ropes. However, most spacecraft missions are of single-point measurements, especially for the missions on other planets (e.g., Mars, Venus, Mercury), thus, the method for investigating the flux ropes based on single-point measurements becomes particularly important. A single-point method that infers the axis orientation of flux ropes was recently developed by Rong et al. Here, we apply this method to study two flux ropes observed by the Magnetospheric Multiscale Mission (MMS), one close to the force-free field and the other close to the non-force-free field, by comparing them with the multipoint analysis of MMS. Our study demonstrates that, apart from axis orientation, the method of Rong et al. can reasonably infer the current density, curvature radius of magnetic field, and the transverse size of flux ropes. We discussed the main error sources of calculated parameters, and suggest that it is worthwhile to widely apply the method by Rong et al. to single-point spacecraft missions for the purpose of examining the geometry and dynamics of flux ropes.
WOS关键词CLUSTER ; RECONSTRUCTION ; MAGNETOPAUSE ; MAGNETOTAIL ; ORIENTATION ; CLOUDS ; FIELD
资助项目Chinese Academy of Sciences[XDA17010201] ; Institute of Geology & Geophysics, CAS[IGGCAS-201904] ; National Natural Science Foundation of China[41922031] ; National Natural Science Foundation of China[41774188] ; National Natural Science Foundation of China[41874190] ; National Natural Science Foundation of China[41874176] ; NASA MMS Guest Investigator grant[80NSSC18K1363]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000584314800001
资助机构Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; Institute of Geology & Geophysics, CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant ; NASA MMS Guest Investigator grant
源URL[http://ir.iggcas.ac.cn/handle/132A11/98212]  
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.Chinese Acad Sci, State Key Lab Space Weather, Natl Space Sci Ctr, Beijing, Peoples R China
2.Harbin Inst Technol, Shenzhen, Peoples R China
3.Chinese Acad Sci, Beijing Natl Observ Space Environm, Inst Geol & Geophys, Beijing, Peoples R China
4.Peking Univ, Beijing Int Ctr Math Res, Beijing, Peoples R China
5.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
7.Univ Michigan, Dept Climate & Space Sci & Engn, Ann Arbor, MI 48109 USA
8.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Chi,Rong, Zhaojin,Shen, Chao,et al. Examining the Magnetic Geometry of Magnetic Flux Ropes from the View of Single-point Analysis[J]. ASTROPHYSICAL JOURNAL,2020,903(1):15.
APA Zhang, Chi.,Rong, Zhaojin.,Shen, Chao.,Klinger, Lucy.,Gao, Jiawei.,...&Zhang,Chi.(2020).Examining the Magnetic Geometry of Magnetic Flux Ropes from the View of Single-point Analysis.ASTROPHYSICAL JOURNAL,903(1),15.
MLA Zhang, Chi,et al."Examining the Magnetic Geometry of Magnetic Flux Ropes from the View of Single-point Analysis".ASTROPHYSICAL JOURNAL 903.1(2020):15.

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来源：地质与地球物理研究所

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