Xiaoli Yan, Zhike Xue, Chaowei Jiang, E. R. Priest, Bernhard Kliem, Liheng Yang, Jincheng Wang, Defang Kong, Yongliang Song, Xueshang Feng, Zhong Liu
- Magnetic reconnection is a multi-faceted process of energy conversion in astrophysical, space and laboratory plasmas that operates at microscopic scales but has macroscopic drivers and consequences.
Solar flares present a key laboratory for its study, leaving imprints of the microscopic physics in radiation spectra and allowing the macroscopic evolution to be imaged, yet a full observational characterization remains elusive.
Here we combine high resolution imaging and spectral observations of a confined solar flare at multiple wavelengths with data-constrained magnetohydrodynamic modeling to study the dynamics of the flare plasma from the current sheet to the plasmoid scale. The analysis suggests that the flare resulted from the interaction of a twisted magnetic flux rope surrounding a filament with nearby magnetic loops whose feet are anchored in chromospheric fibrils. Bright cusp-shaped structures represent the region around a reconnecting separator or quasi-separator (hyperbolic flux tube).
The fast reconnection, which isMagnetic reconnection is a multi-faceted process of energy conversion in astrophysical, space and laboratory plasmas that operates at microscopic scales but has macroscopic drivers and consequences.
Solar flares present a key laboratory for its study, leaving imprints of the microscopic physics in radiation spectra and allowing the macroscopic evolution to be imaged, yet a full observational characterization remains elusive.
Here we combine high resolution imaging and spectral observations of a confined solar flare at multiple wavelengths with data-constrained magnetohydrodynamic modeling to study the dynamics of the flare plasma from the current sheet to the plasmoid scale. The analysis suggests that the flare resulted from the interaction of a twisted magnetic flux rope surrounding a filament with nearby magnetic loops whose feet are anchored in chromospheric fibrils. Bright cusp-shaped structures represent the region around a reconnecting separator or quasi-separator (hyperbolic flux tube).
The fast reconnection, which is relevant for other astrophysical environments, revealed plasmoids in the current sheet and separatrices and associated unresolved turbulent motions.
Solar flares provide wide range of observational details about fundamental processes involved. Here, the authors show evidence for magnetic reconnection in a strong confined solar flare displaying all four reconnection flows with plasmoids in the current sheet and the separatrices.…
MetadatenAuthor details: | Xiaoli YanORCiD, Zhike XueORCiD, Chaowei JiangORCiD, E. R. PriestORCiDGND, Bernhard KliemORCiDGND, Liheng Yang, Jincheng Wang, Defang Kong, Yongliang Song, Xueshang FengORCiD, Zhong Liu |
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DOI: | https://doi.org/10.1038/s41467-022-28269-w |
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ISSN: | 2041-1723 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/35110575 |
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Title of parent work (English): | Nature Communications |
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Publisher: | Nature Publishing Group UK |
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Place of publishing: | London |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2022/02/02 |
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Publication year: | 2022 |
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Release date: | 2024/06/07 |
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Volume: | 13 |
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Issue: | 1 |
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Article number: | 640 |
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Number of pages: | 14 |
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Funding institution: | National Science Foundation of China (NSFC) [11873087, 11973084,; 11803085, 2019FD085, 12003064, 11633008, 11763004, U1831210, 11803002];; Yunnan Key Science Foundation of China [2018FA001, 2018FB007]; Yunnan; Science Foundation for Distinguished Young Scholars [202001AV070004];; Specialized Research Fund for State Key Laboratories; Key Research and; Development Project of Yunnan Province [202003AD150019]; NSFC/DFG; [41761134088/KL817.8-1]; National Natural Science Foundation of China; [41822404, 42174200]; Fundamental Research Funds for the Central; Universities [HIT.BRETIV.201901]; Shenzhen Technology Project; [JCYJ20190806142609035]; DFG |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 50 Naturwissenschaften / 500 Naturwissenschaften und Mathematik |
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| 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Peer review: | Referiert |
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Publishing method: | Open Access / Gold Open-Access |
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| DOAJ gelistet |
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License (German): | CC-BY - Namensnennung 4.0 International |
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