SOTE: A Nonlinear Method for Magnetic Topology Reconstruction in Space Plasmas
文献类型：期刊论文
| 作者 | Liu,Y. Y.7; Fu,H. S.7; Olshevsky,V.6; Pontin,D. I.5; Liu,C. M.7; Wang,Z.7; Chen,G.3,4; Dai,L.2; Retino,A.1 |
| 刊名 | The Astrophysical Journal Supplement Series
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 244期号:2 |
| ISSN号 | 0067-0049 |
| 关键词 | magnetic fields magnetic reconnection methods: data analysis solar wind turbulence |
| DOI | 10.3847/1538-4365/ab391a |
| 英文摘要 | Abstract Complex magnetic structures are ubiquitous in turbulent astrophysical plasmas. Such structures can be host to many dynamic processes, such as magnetic reconnection and energy dissipation. Thus, revealing the 3D topologies of these structures is necessary. In this study, we propose a new method to reconstruct complex magnetic topologies in quasi-steady space plasmas, by utilizing eight-point measurements of magnetic fields and particles. Such a method, based on the Second-Order Taylor Expansion (SOTE) of a magnetic field, is nonlinear; it is constrained by and , where is from particle moments. A benchmark test of this method, using the simulation data, shows that the method can give accurate reconstruction results within an area about three times the size of a spacecraft tetrahedron. By comparing to the previous First-Order Taylor Expansion (FOTE) method, this method (SOTE) gives similar results for reconstructing quasilinear structures but exhibits better accuracy in reconstructing nonlinear structures. Such a method will be useful to the multi-scale missions, such as the future European Space Agency's “cross-scale” mission and China's “self-adaptive” mission. Also, it can be applied to four-point missions, such as Cluster and the Magnetospheric Multiscale Mission. We demonstrated how to apply this method to the four-point missions. In principle, this method will be useful to study shocks, magnetic holes, dipolarization fronts, and other nonlinear structures in space plasmas. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0067-0049-244-2-AB391A |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/93871]  |
| 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 |
| 作者单位 | 1.Laboratoire de Physique des Plasmas, CNRS/Ecole Polytechnique/Sorbonne, Université/Université Paris Sud/Observatoire de Paris, Paris, France 2.National Space Science Center, Chinese Academy of Sciences, Beijing, People’s Republic of China 3.Institutions of Earth Science, Chinese Academy of Sciences, Beijing, People’s Republic of China 4.Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Beijing, People’s Republic of China 5.University of Dundee, Dundee, UK 6.KTH Royal Institute of Technology, Stockholm, Sweden 7.School of Space and Environment, Beihang University, Beijing, People’s Republic of China; huishanf@gmail.com |
| 推荐引用方式 GB/T 7714 | Liu,Y. Y.,Fu,H. S.,Olshevsky,V.,et al. SOTE: A Nonlinear Method for Magnetic Topology Reconstruction in Space Plasmas[J]. The Astrophysical Journal Supplement Series,2019,244(2). |
| APA | Liu,Y. Y..,Fu,H. S..,Olshevsky,V..,Pontin,D. I..,Liu,C. M..,...&Retino,A..(2019).SOTE: A Nonlinear Method for Magnetic Topology Reconstruction in Space Plasmas.The Astrophysical Journal Supplement Series,244(2). |
| MLA | Liu,Y. Y.,et al."SOTE: A Nonlinear Method for Magnetic Topology Reconstruction in Space Plasmas".The Astrophysical Journal Supplement Series 244.2(2019). |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。