The Role of a Magnetic Topology Skeleton in a Solar Active Region
Guo,Juan1,2; Wang,Huaning1,3; Wang,Jingxiu3; Zhu,Xiaoshuai1,4; Dai,Xinghua1; Huang,Xin1; He,Han1; Yan,Yan1; Zhao,Hui
Source PublicationThe Astrophysical Journal
AbstractAbstract We investigate the 3D magnetic topology in the active region NOAA 11719 nine hours before and after a flare–coronal mass ejection (CME) event on 2013 April 11. The extrapolated 3D coronal magnetic field is computed employing a boundary integrated model, and a complex magnetic topology skeleton comprising five fairly robust null points and their relevant structures are revealed with a mathematical method based on a Poincaré index of isolated 3D null points. Comparative analyses show that the magnetic topology skeleton in this active region determines geometries of post-flare loops and flare ribbons, and characterizes the initial stage of the CME. The present work demonstrates that the magnetic topology skeleton plays an important role in the process of the flare–CME eruption.
Keywordmagnetic reconnection Sun: coronal mass ejections (CMEs) Sun: flares Sun: magnetic fields
WOS IDIOP:0004-637X-874-2-ab0aed
PublisherThe American Astronomical Society
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Document Type期刊论文
Affiliation1.Key laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China,
2.Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210093, People’s Republic of China
3.University of Chinese Academy of Science, Beijing, People’s Republic of China
4.Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, D-37077 G?ttingen, Germany
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
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Guo,Juan,Wang,Huaning,Wang,Jingxiu,et al. The Role of a Magnetic Topology Skeleton in a Solar Active Region[J]. The Astrophysical Journal,2019,874(2).
APA Guo,Juan.,Wang,Huaning.,Wang,Jingxiu.,Zhu,Xiaoshuai.,Dai,Xinghua.,...&Zhao,Hui.(2019).The Role of a Magnetic Topology Skeleton in a Solar Active Region.The Astrophysical Journal,874(2).
MLA Guo,Juan,et al."The Role of a Magnetic Topology Skeleton in a Solar Active Region".The Astrophysical Journal 874.2(2019).
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