Zhike Xue, Xiaoli Yan, Xin Cheng, Liheng Yang, Yingna Su, Bernhard Kliem, Jun Zhang, Zhong Liu, Yi Bi, Yongyuan Xiang, Kai Yang, Li Zhao
- Magnetic reconnection is a fundamental process of topology change and energy release, taking place in plasmas on the Sun, in space, in astrophysical objects and in the laboratory. However, observational evidence has been relatively rare and typically only partial. Here we present evidence of fast reconnection in a solar filament eruption using high-resolution H-alpha images from the New Vacuum Solar Telescope, supplemented by extreme ultraviolet observations. The reconnection is seen to occur between a set of ambient chromospheric fibrils and the filament itself. This allows for the relaxation of magnetic tension in the filament by an untwisting motion, demonstrating a flux rope structure. The topology change and untwisting are also found through nonlinear force-free field modelling of the active region in combination with magnetohydrodynamic simulation. These results demonstrate a new role for reconnection in solar eruptions: the release of magnetic twist.
MetadatenVerfasserangaben: | Zhike Xue, Xiaoli Yan, Xin Cheng, Liheng Yang, Yingna Su, Bernhard KliemORCiDGND, Jun Zhang, Zhong Liu, Yi Bi, Yongyuan Xiang, Kai Yang, Li Zhao |
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DOI: | https://doi.org/10.1038/ncomms11837 |
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ISSN: | 2041-1723 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/27306479 |
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Titel des übergeordneten Werks (Englisch): | Nature Communications |
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Verlag: | Nature Publ. Group |
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Verlagsort: | London |
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Publikationstyp: | Wissenschaftlicher Artikel |
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Sprache: | Englisch |
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Jahr der Erstveröffentlichung: | 2016 |
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Erscheinungsjahr: | 2016 |
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Datum der Freischaltung: | 22.03.2020 |
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Band: | 7 |
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Seitenanzahl: | 11 |
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Fördernde Institution: | National Science Foundation of China [11503080, 11373066, 11573012, 11373065, 11303016, 11533008, 11473071]; Key Laboratory of Solar Activity of Chinese Academy of Sciences (CAS) [KLSA201412, KLSA201407]; national basic research program of China (973 program) [2011CB811400]; CAS [2012T1J0017]; DFG; One Hundred Talent Program of Chinese Academy of Sciences |
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Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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Peer Review: | Referiert |
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