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Observing the release of twist by magnetic reconnection in a solar filament eruption
Xue ZK(薛志科)1,2; Yan XL(闫晓理)1; Cheng, Xin3; Yang LH(杨丽恒)1,2; Su, Yingna4; Bernhard Kliem1,5; Zhang, Jun2; Liu Z(刘忠)1; Bi Y(毕以)1; Xiang YY(向永源)1; Yang, Kai3; Zhao L(赵丽)1
Source PublicationNATURE COMMUNICATIONS
2016-06-01
Volume7
DOI10.1038/ncomms11837
Contribution Rank第1完成单位
Indexed BySCI ; EI
Abstract

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.

Funding ProjectNational Science Foundation of China[11503080] ; National Science Foundation of China[11373066] ; National Science Foundation of China[11573012] ; National Science Foundation of China[11373065] ; National Science Foundation of China[11303016] ; National Science Foundation of China[11533008] ; National Science Foundation of China[11473071] ; Key Laboratory of Solar Activity of Chinese Academy of Sciences (CAS)[KLSA201412] ; Key Laboratory of Solar Activity of Chinese Academy of Sciences (CAS)[KLSA201407] ; Yunnan Science Foundation of China[2013FB086] ; CAS 'Light of West China' Program ; Youth Innovation Promotion Association CAS[2011056] ; national basic research program of China (973 program)[2011CB811400] ; CAS[2012T1J0017] ; DFG ; One Hundred Talent Program of Chinese Academy of Sciences
Funding OrganizationNational Science Foundation of China[11503080, 11373066, 11573012, 11373065, 11303016, 11533008, 11473071] ; Key Laboratory of Solar Activity of Chinese Academy of Sciences (CAS)[KLSA201412, KLSA201407] ; Yunnan Science Foundation of China[2013FB086] ; CAS 'Light of West China' Program ; Youth Innovation Promotion Association CAS[2011056] ; national basic research program of China (973 program)[2011CB811400] ; CAS[2012T1J0017] ; DFG ; One Hundred Talent Program of Chinese Academy of Sciences
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATURE PUBLISHING GROUP
Publication PlaceMACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
ISSN2041-1723
URL查看原文
Archive Date2016-12-15
WOS IDWOS:000378812000001
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS KeywordX-RAY TELESCOPE ; DYNAMICS-OBSERVATORY SDO ; CORONAL MASS EJECTIONS ; 2010 APRIL 8 ; ACTIVE REGIONS ; CURRENT SHEET ; FLUX ROPE ; FLARE ; LOOP ; MODEL
EI Accession Number4947801
EI Classification Number901Geobase: Related Topics
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9616
Collection抚仙湖太阳观测站
Corresponding AuthorYan XL(闫晓理)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650216, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.School of Astronomy and Space Science, Nanjing University, Nanjing, Jiangsu 210093, China
4.Key Laboratory for Dark Matter and Space Science, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China
5.Institute of Physics and Astronomy, University of Potsdam, Potsdam 14476, Germany
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xue ZK,Yan XL,Cheng, Xin,et al. Observing the release of twist by magnetic reconnection in a solar filament eruption[J]. NATURE COMMUNICATIONS,2016,7.
APA Xue ZK.,Yan XL.,Cheng, Xin.,Yang LH.,Su, Yingna.,...&Zhao L.(2016).Observing the release of twist by magnetic reconnection in a solar filament eruption.NATURE COMMUNICATIONS,7.
MLA Xue ZK,et al."Observing the release of twist by magnetic reconnection in a solar filament eruption".NATURE COMMUNICATIONS 7(2016).
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