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A Small-scale Oscillatory Reconnection and the Associated Formation and Disappearance of a Solar Flux Rope
Xue ZK(薛志科)1,2,3; Yan XL(闫晓理)1,3; Jin, Chunlan2; Yang LH(杨丽恒)1,3; Wang JC(王金成)1,3; Li QL(李巧玲)1,3,4; Zhao L(赵丽)1,3
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2019-04-01
Volume874Issue:2Pages:9
DOI10.3847/2041-8213/ab1135
Contribution Rank第1完成单位
Indexed BySCI
Keywordmagnetic reconnection Sun: activity Sun: magnetic fields Sun: oscillations
Abstract

We present the observations of a small-scale oscillatory reconnection for the first time and its resulting in formation and disappearance of a flux rope with the high-resolution data obtained by the New Vacuum Solar Telescope and the Solar Dynamics Observatory on 2013 July 24 and 25. This oscillatory reconnection consists of four relatively independent magnetic reconnections which last for about 48, 158, 275, and 340 minutes, respectively. The durations of the four magnetic reconnections increase with time. Four current sheets along two nearly perpendicular directions are formed alternately. The oscillatory reconnection experiences two cycles, and the periods of the two oscillations are 206 and 615 minutes, which are much longer than the previous results. The period of the first oscillation is shorter than that of the second oscillation. Furthermore, a flux rope forms during the second magnetic reconnection. Its twist increases with the reconnection and transfers from the reconnection site to one leg, and this leads the flux rope to become more slender. Then, the flux rope disappears in the early stage of the third magnetic reconnection. We conclude that the formation and disappearance of the flux rope are caused by the oscillatory reconnection.

Funding ProjectNational Science Foundation of China (NSFC)[11503080] ; National Science Foundation of China (NSFC)[11873087] ; National Science Foundation of China (NSFC)[11803085] ; National Science Foundation of China (NSFC)[11633008] ; National Science Foundation of China (NSFC)[11573012] ; National Science Foundation of China (NSFC)[11763004] ; Yunnan Science Foundation of China[2018FB007] ; Yunnan Science Foundation of China[2018FA001] ; Youth Innovation Promotion Association, CAS[2019061] ; Youth Innovation Promotion Association, CAS[2011056] ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories[KLSA201910] ; CAS "Light of West China" Program ; Project of the Group for Innovation of Yunnan Province
Funding OrganizationNational Science Foundation of China (NSFC)[11503080, 11873087, 11803085, 11633008, 11573012, 11763004] ; Yunnan Science Foundation of China[2018FB007, 2018FA001] ; Youth Innovation Promotion Association, CAS[2019061, 2011056] ; CAS Key Laboratory of Solar Activity ; National Astronomical Observatories[KLSA201910] ; CAS "Light of West China" Program ; Project of the Group for Innovation of Yunnan Province
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
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS IDWOS:000463394800002
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordMAGNETIC RECONNECTION ; FLARE ; RECONSTRUCTION ; EMERGENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/19640
Collection抚仙湖太阳观测站
Corresponding AuthorXue ZK(薛志科)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming Yunnan 650216, People's Republic of China
2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People's Republic of China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, People's Republic of China
4.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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,Jin, Chunlan,et al. A Small-scale Oscillatory Reconnection and the Associated Formation and Disappearance of a Solar Flux Rope[J]. ASTROPHYSICAL JOURNAL LETTERS,2019,874(2):9.
APA Xue ZK.,Yan XL.,Jin, Chunlan.,Yang LH.,Wang JC.,...&Zhao L.(2019).A Small-scale Oscillatory Reconnection and the Associated Formation and Disappearance of a Solar Flux Rope.ASTROPHYSICAL JOURNAL LETTERS,874(2),9.
MLA Xue ZK,et al."A Small-scale Oscillatory Reconnection and the Associated Formation and Disappearance of a Solar Flux Rope".ASTROPHYSICAL JOURNAL LETTERS 874.2(2019):9.
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