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Reconfiguration and Eruption of a Solar Filament by Magnetic Reconnection with an Emerging Magnetic Field

文献类型：期刊论文

作者Li, Leping1,2; Peter, Hardi3; Chitta, Lakshmi Pradeep3; Song, Hongqiang4,5; Xu, Zhe6; Xiang, Yongyuan6
刊名ASTROPHYSICAL JOURNAL
出版日期2022-08-01
卷号935期号:2页码:12
ISSN号0004-637X
DOI10.3847/1538-4357/ac7ffa
英文摘要Both observations and simulations suggest that the solar filament eruption is closely related to magnetic flux emergence. It is thought that the eruption is triggered by magnetic reconnection between the filament and the emerging flux. However, the details of such a reconnection are rarely presented. In this study, we report the detailed reconnection between a filament and its nearby emerging fields, which led to the reconfiguration and subsequent partial eruption of the filament located over the polarity inversion line of active region 12816. Before the reconnection, we observed repeated brightenings in the filament at a location that overlies a site of magnetic flux cancellation. Plasmoids form at this brightening region, and propagate bidirectionally along the filament. These indicate the tether-cutting reconnection that results in the formation and eruption of a flux rope. To the northwest of the filament, magnetic fields emerge, and reconnect with the context ones, resulting in repeated jets. Afterwards, other magnetic fields emerge near the northwestern filament endpoints, and reconnect with the filament, forming the newly reconnected filament and loops. A current sheet repeatedly occurs at the interface, with the mean temperature and emission measure of 1.7 MK and 1.1x10(28) cm(-5). Plasmoids form in the current sheet, and propagate along it and further along the newly reconnected filament and loops. The newly reconnected filament then erupts, while the unreconnected filament remains stable. We propose that besides the orientation of emerging fields, some other parameters, such as the position, distance, strength, and area, are also crucial for triggering the filament eruption.
WOS关键词CORONAL MASS EJECTIONS ; FLUX EMERGENCE ; ACTIVE-REGION ; PROMINENCES ; INITIATION ; MECHANISM ; DYNAMICS ; DRIVEN ; ONSET ; KINK
资助项目Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDB 41000000] ; National Natural Science Foundations of China[12073042] ; National Natural Science Foundations of China[U2031109] ; Key Research Program of Frontier Sciences[ZDBS-LY-SLH013] ; CAS[QYZDJ-SSW-SLH050] ; Yunnan Academician Workstation of Wang Jingxiu[202005AF150025]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000841590800001
出版者IOP Publishing Ltd
资助机构Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Research Program of Frontier Sciences ; Key Research Program of Frontier Sciences ; CAS ; CAS ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Research Program of Frontier Sciences ; Key Research Program of Frontier Sciences ; CAS ; CAS ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Research Program of Frontier Sciences ; Key Research Program of Frontier Sciences ; CAS ; CAS ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; Key Research Program of Frontier Sciences ; Key Research Program of Frontier Sciences ; CAS ; CAS ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu
源URL[http://ir.bao.ac.cn/handle/114a11/87619]  
专题中国科学院国家天文台
通讯作者Li, Leping
作者单位1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Max Planck Inst Solar Syst Res, D-37077 Gottingen, Germany
4.Shandong Univ, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Shandong, Peoples R China
5.Shandong Univ, Inst Space Sci, Weihai 264209, Shandong, Peoples R China
6.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
推荐引用方式
GB/T 7714		 Li, Leping,Peter, Hardi,Chitta, Lakshmi Pradeep,et al. Reconfiguration and Eruption of a Solar Filament by Magnetic Reconnection with an Emerging Magnetic Field[J]. ASTROPHYSICAL JOURNAL,2022,935(2):12.
APA Li, Leping,Peter, Hardi,Chitta, Lakshmi Pradeep,Song, Hongqiang,Xu, Zhe,&Xiang, Yongyuan.(2022).Reconfiguration and Eruption of a Solar Filament by Magnetic Reconnection with an Emerging Magnetic Field.ASTROPHYSICAL JOURNAL,935(2),12.
MLA Li, Leping,et al."Reconfiguration and Eruption of a Solar Filament by Magnetic Reconnection with an Emerging Magnetic Field".ASTROPHYSICAL JOURNAL 935.2(2022):12.

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