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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
2017-02-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume836Issue:2Pages:9
Corresponding AuthorZheng, Ruisheng(ruishengzheng@sdu.edu.cn)
AbstractUsing 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.
KeywordSun: corona Sun: coronal mass ejections (CMEs) Sun: filaments, prominences
DOI10.3847/1538-4357/aa5c38
WOS KeywordDYNAMICS-OBSERVATORY SDO ; SOLAR FILAMENT ; FLUX ROPES ; ERUPTION ; RECONNECTION ; EVOLUTION ; CHIRALITY ; FIELDS ; EVENT ; ANGLE
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000395917400001
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23202
Collection中国科学院紫金山天文台
Corresponding AuthorZheng, Ruisheng
Affiliation1.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
Recommended Citation
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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