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 | |
刊名 | ASTROPHYSICAL JOURNAL |
2017-02-20 | |
卷号 | 836期号:2 |
关键词 | Sun: Activity Sun: Corona Sun: Filaments Sun: Flares Sun: Magnetic Fields Supporting Material: Animations |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/aa5eac |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
资助项目 | Natural 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 |
WOS关键词 | SOLAR ACTIVE-REGION ; SLIP-RUNNING RECONNECTION ; RAPID SUNSPOT ROTATION ; SEPARATRIX LAYERS ; X-RAY ; MULTIWAVELENGTH OBSERVATIONS ; RESOLUTION OBSERVATIONS ; CORONAL JETS ; FLUX ROPES ; FIELD |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000401169200003 |
资助机构 | Natural Science Foundation of China[11333007, 11403098, 11473065, 11573012, 11503081, 11503082, 11633008] ; CAS |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/10063] |
专题 | 云南天文台_太阳物理研究组 |
通讯作者 | Li HD(李海东) |
作者单位 | 1.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 |
推荐引用方式 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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