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A three-dimensional model of spiral null pair to form ion-scale flux ropes in magnetic reconnection region observed by Cluster

文献类型：期刊论文

作者Guo, Ruilong8; Pu, Zuyin1; Yao, Zhonghua2; Dunlop, Malcolm3,4; Bogdanova, Yulia, V4; Wei, Yong8; Wang, Xiaogang6; Xiao, Chijie5; He, Jiansen1; Fu, Suiyan1
刊名PHYSICS OF PLASMAS
出版日期2019-11-01
卷号26期号:11页码:9
ISSN号1070-664X
DOI10.1063/1.5114620
英文摘要The magnetic structure and topology of the three-dimensional magnetic reconnection region are significantly dynamic and complex. Small-scale flux ropes and magnetic null points are frequently detected in the reconnection outflow region and diffusion region due to the increased in situ measurements at high temporal cadences. Previous studies have demonstrated that X-line and small-scale flux ropes are both related to null points. In this study, by applying a fitting-reconstruction method with the input of the Cluster dataset, we reveal three types of spiral null pairs that serve as the skeleton of the flux ropes. Two spiral nulls can be connected by a spine, or by a separator, or by both a spine and a separator. A theoretical model is proposed to explain these spiral null pairs. The observational results and the model indicate that the number of magnetic loops of the flux rope is restricted by the linkage pattern of two nulls, while the flux rope is confined by the two nulls and their fan surfaces. The model predicts that the magnetic perturbations in the reconnection region can transform the linkage types of the nulls and eventually lead to the evolution of flux ropes. Published under license by AIP Publishing.
WOS关键词ELECTRON ; TOPOLOGY ; PLASMA ; FIELDS
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; National Natural Science Foundation of China[41704169] ; National Natural Science Foundation of China[41525016] ; National Natural Science Foundation of China[41274167] ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA
WOS研究方向Physics
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000507883900001
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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA ; Belgian Federal Science Policy Office (BELSPO) via the PRODEX Program of ESA
源URL[http://ir.iggcas.ac.cn/handle/132A11/95931]  
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Guo, Ruilong
作者单位1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.Univ Liege, STAR Inst, Lab Phys Atmospher & Planetaire, B-4000 Liege, Belgium
3.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China
4.STFC, Rutherford Appleton Lab, RAL Space, Didcot OX11 0QX, Oxon, England
5.Peking Univ, Sch Phys, Beijing 100871, Peoples R China
6.Harbin Inst Technol, Harbin 150001, Peoples R China
7.UCL Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Ruilong,Pu, Zuyin,Yao, Zhonghua,et al. A three-dimensional model of spiral null pair to form ion-scale flux ropes in magnetic reconnection region observed by Cluster[J]. PHYSICS OF PLASMAS,2019,26(11):9.
APA Guo, Ruilong.,Pu, Zuyin.,Yao, Zhonghua.,Dunlop, Malcolm.,Bogdanova, Yulia, V.,...&Wan, Weixing.(2019).A three-dimensional model of spiral null pair to form ion-scale flux ropes in magnetic reconnection region observed by Cluster.PHYSICS OF PLASMAS,26(11),9.
MLA Guo, Ruilong,et al."A three-dimensional model of spiral null pair to form ion-scale flux ropes in magnetic reconnection region observed by Cluster".PHYSICS OF PLASMAS 26.11(2019):9.

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来源：地质与地球物理研究所

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