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Rotating Magnetic Structures Associated with a Quasi-circular Ribbon Flare
Li HD(李海东)1,2; Jiang YC(姜云春)1; Yang JY(杨家艳)1; Yang B(杨波)1,2; Xu Z(徐喆)1,2; Hong JC(洪俊超)1; Bi Y(毕以)1,2
Source PublicationASTROPHYSICAL JOURNAL
2017-02-20
Volume836Issue:2
DOI10.3847/1538-4357/aa5eac
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Corona Sun: Filaments Sun: Flares Sun: Magnetic Fields Supporting Material: Animations
Abstract

We present the detection of a small eruption and the associated quasi-circular ribbon flare during the emergence of a bipole occurring on 2015 February 3. Under a fan dome, a sigmoid was rooted in a single magnetic bipole, which was encircled by negative polarity. The nonlinear force-free field extrapolation shows the presence of twisted field lines, which can represent a sigmoid structure. The rotation of the magnetic bipole may cause the twisting of magnetic field lines. An initial brightening appeared at one of the footpoints of the sigmoid, where the positive polarity slides toward a nearby negative polarity field region. The sigmoid displayed an ascending motion and then interacted intensively with the spine-like field. This type of null point reconnection in corona led to a violent blowout jet, and a quasi-circular flare ribbon was also produced. The magnetic emergence and rotational motion are the main contributors to the energy buildup for the flare, while the cancellation and collision might act as a trigger.

Funding ProjectNatural Science Foundation of China[11333007] ; Natural Science Foundation of China[11403098] ; Natural Science Foundation of China[11473065] ; Natural Science Foundation of China[11573012] ; Natural Science Foundation of China[11503081] ; Natural Science Foundation of China[11503082] ; Natural Science Foundation of China[11633008] ; CAS
Funding OrganizationNatural Science Foundation of China[11333007, 11403098, 11473065, 11573012, 11503081, 11503082, 11633008] ; CAS
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
ISSN0004-637X
URL查看原文
WOS IDWOS:000401169200003
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSOLAR ACTIVE-REGION ; SLIP-RUNNING RECONNECTION ; RAPID SUNSPOT ROTATION ; SEPARATRIX LAYERS ; X-RAY ; MULTIWAVELENGTH OBSERVATIONS ; RESOLUTION OBSERVATIONS ; CORONAL JETS ; FLUX ROPES ; FIELD
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/10063
Collection太阳物理研究组
Corresponding AuthorLi HD(李海东)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming, 650216, China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing, 100012, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li HD,Jiang YC,Yang JY,et al. Rotating Magnetic Structures Associated with a Quasi-circular Ribbon Flare[J]. ASTROPHYSICAL JOURNAL,2017,836(2).
APA Li HD.,Jiang YC.,Yang JY.,Yang B.,Xu Z.,...&Bi Y.(2017).Rotating Magnetic Structures Associated with a Quasi-circular Ribbon Flare.ASTROPHYSICAL JOURNAL,836(2).
MLA Li HD,et al."Rotating Magnetic Structures Associated with a Quasi-circular Ribbon Flare".ASTROPHYSICAL JOURNAL 836.2(2017).
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