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  The Role of a Magnetic Topology Skeleton in a Solar Active Region

Guo, J., Wang, H., Wang, J., Zhu, X., Dai, X., Huang, X., et al. (2019). The Role of a Magnetic Topology Skeleton in a Solar Active Region. The Astrophysical Journal, 874(2): 181. doi:10.3847/1538-4357/ab0aed.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0006-67EE-B Version Permalink: https://hdl.handle.net/21.11116/0000-0006-67EF-A
Genre: Journal Article

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 Creators:
Guo, Juan, Author
Wang, Huaning, Author
Wang, Jingxiu, Author
Zhu, Xiaoshuai1, Author
Dai, Xinghua, Author
Huang, Xin, Author
He, Han, Author
Yan, Yan, Author
Zhao, Hui, Author
Affiliations:
1Max Planck Institute for Solar System Research, Max Planck Society, Justus-von-Liebig-Weg 3, 37077 Göttingen, DE, ou_1125546              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2019
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.3847/1538-4357/ab0aed
 Degree: -

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Title: The Astrophysical Journal
Source Genre: Journal
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Publ. Info: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 874 (2) Sequence Number: 181 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3