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Dynamical Evolution of an Active-region Filament Driven by Magnetic Reconnection
Guo, Yilin1,2; Hou, Yijun1,2; Li, Ting1,2; Zhang, Jun3
2021-10-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume920Issue:2Pages:8
AbstractStudying solar filament dynamical evolutions is an important approach to reveal the driving mechanism of solar eruptions, which seriously impact on the Sun-Earth system and could cause disastrous space weather. To better understand the evolution process of solar filaments, here we investigate an active-region filament by employing observations from the New Vacuum Solar Telescope (NVST), Solar Dynamics Observatory, and Interface Region Imaging Spectrograph. The high-resolution NVST H alpha images show that the northern footpoint of the filament gradually moved northward. Near the northern footpoint, there is an arch filament system (AFS). Between adjacent footpoints of the filament and the AFS, transient brightening, underlying magnetic cancellation, and bidirectional flows were detected, which jointly imply that it could be the magnetic reconnection between the filament and the AFS that changes the connection of filament threads and drives its footpoint to move northward. In addition, during the footpoint evolution, the filament with highly twisted structure underwent several untwisting motions. Meanwhile, transient brightenings were also observed and appeared as bright knots around several positions where filament threads might braid with each other. And some bright blobs were also detected to propagate outward from the brightening region. These observations suggest that magnetic reconnection might be responsible for the untwisting motion. This work exposes us to a dynamical scenario of the filament evolution driven by magnetic reconnection, which will promote our understanding of the formation and eruption of the filaments.
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu
DOI10.3847/1538-4357/ac1ac6
WOS KeywordSOLAR FILAMENT ; EVOLVING FIELDS ; NEUTRAL SHEETS ; FLUX ROPE ; PROMINENCE ; ERUPTIONS ; MODEL
Language英语
Funding ProjectNational Key R&D Program of China[2019YFA0405000] ; National Natural Science Foundation of China[12073001] ; National Natural Science Foundation of China[11790304] ; National Natural Science Foundation of China[11903050] ; National Natural Science Foundation of China[11773039] ; National Natural Science Foundation of China[11873059] ; National Natural Science Foundation of China[12073042] ; National Natural Science Foundation of China[11790300] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB41000000] ; Young Elite Scientists Sponsorship Program by CAST[2018QNRC001] ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS[2017078] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050] ; Yunnan Academician Workstation of Wang Jingxiu[202005AF150025]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Young Elite Scientists Sponsorship Program by CAST ; Young Elite Scientists Sponsorship Program by CAST ; NAOC Nebula Talents Program ; NAOC Nebula Talents Program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Key Programs of the Chinese Academy of Sciences ; Key Programs of the Chinese Academy of Sciences ; Yunnan Academician Workstation of Wang Jingxiu ; Yunnan Academician Workstation of Wang Jingxiu
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000708210800001
PublisherIOP Publishing Ltd
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/74536
Collection中国科学院国家天文台
Corresponding AuthorHou, Yijun; Zhang, Jun
Affiliation1.Chinese Acad Sci, CAS Key Lab Solar Act, Natl Astron Observ, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Anhui Univ, Sch Phys & Mat Sci, Hefei 230601, Peoples R China
Recommended Citation
GB/T 7714
Guo, Yilin,Hou, Yijun,Li, Ting,et al. Dynamical Evolution of an Active-region Filament Driven by Magnetic Reconnection[J]. ASTROPHYSICAL JOURNAL,2021,920(2):8.
APA Guo, Yilin,Hou, Yijun,Li, Ting,&Zhang, Jun.(2021).Dynamical Evolution of an Active-region Filament Driven by Magnetic Reconnection.ASTROPHYSICAL JOURNAL,920(2),8.
MLA Guo, Yilin,et al."Dynamical Evolution of an Active-region Filament Driven by Magnetic Reconnection".ASTROPHYSICAL JOURNAL 920.2(2021):8.
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