Interaction of Two Filaments in a Long Filament Channel Associated with Twin Coronal Mass Ejections | |
Zheng, Ruisheng1,2; Zhang, Qingmin3; Chen, Yao1,2; Wang, Bing1,2; Du, Guohui1,2; Li, Chuanyang1,2; Yang, Kai4 | |
刊名 | ASTROPHYSICAL JOURNAL |
2017-02-20 | |
卷号 | 836期号:2页码:9 |
关键词 | Sun: corona Sun: coronal mass ejections (CMEs) Sun: filaments, prominences |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/aa5c38 |
英文摘要 | Using the high-quality observations of the Solar Dynamics Observatory, we present the interaction of two filaments (F1 and F2) in a long filament channel associated with twin coronal mass ejections (CMEs) on 2016 January 26. Before the eruption, a sequence of rapid cancellation and emergence of the magnetic flux has been observed, which likely triggered the ascending of the west filament (F1). The east footpoints of rising F1 moved toward the east far end of the filament channel, accompanied by post-eruption loops and flare ribbons. This likely indicated a large-scale eruption involving the long filament channel, which resulted from the interaction between F1 and the east filament (F2). Some bright plasma flew over F2, and F2 stayed at rest during the eruption, likely due to the confinement of its overlying lower magnetic field. Interestingly, the impulsive F1 pushed its overlying magnetic arcades to form the first CME, and F1 finally evolved into the second CME after the collision with the nearby coronal hole. We suggest that the interaction of F1 and the overlying magnetic field of F2 led to the merging reconnection that forms a longer eruptive filament loop. Our results also provide a possible picture of the origin of twin CMEs and show that the large-scale magnetic topology of the coronal hole is important for the eventual propagation direction of CMEs. |
WOS关键词 | DYNAMICS-OBSERVATORY SDO ; SOLAR FILAMENT ; FLUX ROPES ; ERUPTION ; RECONNECTION ; EVOLUTION ; CHIRALITY ; FIELDS ; EVENT ; ANGLE |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000395917400001 |
内容类型 | 期刊论文 |
源URL | [http://libir.pmo.ac.cn/handle/332002/23201] |
专题 | 中国科学院紫金山天文台 |
通讯作者 | Zheng, Ruisheng |
作者单位 | 1.Shandong Univ, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China 2.Shandong Univ, Inst Space Sci, Weihai 264209, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210008, Jiangsu, Peoples R China 4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zheng, Ruisheng,Zhang, Qingmin,Chen, Yao,et al. Interaction of Two Filaments in a Long Filament Channel Associated with Twin Coronal Mass Ejections[J]. ASTROPHYSICAL JOURNAL,2017,836(2):9. |
APA | Zheng, Ruisheng.,Zhang, Qingmin.,Chen, Yao.,Wang, Bing.,Du, Guohui.,...&Yang, Kai.(2017).Interaction of Two Filaments in a Long Filament Channel Associated with Twin Coronal Mass Ejections.ASTROPHYSICAL JOURNAL,836(2),9. |
MLA | Zheng, Ruisheng,et al."Interaction of Two Filaments in a Long Filament Channel Associated with Twin Coronal Mass Ejections".ASTROPHYSICAL JOURNAL 836.2(2017):9. |
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