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Rearrangement of sunspot magnetic field caused by an X1.5 solar flare

文献类型：期刊论文

作者Gong LF(龚刘凡)3,4; Yan XL(闫晓理)2,3; Liang, Hongfei4; Xue ZK(薛志科)2,3; Wang JC(王金成)2,3; Yang LH(杨丽恒)2,3; Peng Y(彭洋)1,3; Yang LP(杨丽平)1,3; Zhang XS(张鑫生)1,3
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2024-05-06
卷号530期号:4页码:3897-3905
关键词Sun: activity Sun: flares Sun: photosphere
ISSN号0035-8711
DOI10.1093/mnras/stae1020
产权排序第2完成单位
文献子类Article
英文摘要Solar flares will cause the change of the photospheric magnetic field and sunspot structure. However, the exact physical processes involved remain unclear. Here, we study the changes of photospheric magnetic field before and after an X1.5 flare caused by a circular filament eruption in the active region NOAA 13006. The magnetic field structure of this active region is a fan-spine structure with a circular polarity inversion line (PIL). We found that the sunspot structure contracted towards the PIL as a whole after the flare. The penumbra away from the PIL gradually disappears, and the umbra and penumbra near the PIL gradually enhances. By analysing the local magnetic field, the Lorentz force (LF), and the photospheric velocity field in these three regions, we find that the magnetic flux in the region of the disappearing penumbra converges and contracts towards the PIL, leading to an enhancement of the umbra, while the enhancement of the penumbra potentially indicates that this region may be the footpoint of a reconnected magnetic field system. We suggest that this contracting motion is driven by the horizontal LF.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
WOS关键词OBSERVATIONAL EVIDENCE ; RAPID CHANGES ; HELICITY ; ROTATION ; ENERGY ; FILAMENT ; MOTION
资助项目Chinese Academy of Sciences[XDB0560000]; Strategic Priority Research Program of the Chinese Academy of Sciences[12325303]; Strategic Priority Research Program of the Chinese Academy of Sciences[U1931116]; National Natural Science Foundation of China[YNSPCC202212]; National Natural Science Foundation of China[202205AG070009]; Yunnan Key Laboratory of the Solar physics and Space Science[202305AS350029]; Yunnan Key Laboratory of the Solar physics and Space Science[202305AT350005]; Yunnan Revitalization Talent Support Program[202305AH340002]; Yunnan Provincial Science and Technology Department[23NSESC4481]; Natural Science Foundation of Sichuan
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001215169400005
出版者OXFORD UNIV PRESS
资助机构Chinese Academy of Sciences[XDB0560000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[12325303, U1931116] ; National Natural Science Foundation of China[YNSPCC202212, 202205AG070009] ; Yunnan Key Laboratory of the Solar physics and Space Science[202305AS350029, 202305AT350005] ; Yunnan Revitalization Talent Support Program[202305AH340002] ; Yunnan Provincial Science and Technology Department[23NSESC4481] ; Natural Science Foundation of Sichuan
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27208]  
专题云南天文台_抚仙湖太阳观测站
云南天文台_光纤阵列太阳光学望远镜研究组
作者单位1.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
2.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People’s Republic of China;
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China;
4.Key Laboratory of Colleges and Universities in Yunnan Province for High-energy Astrophysics, Department of Physics, Yunnan Normal University, Kunming 650500, People’s Republic of China;
推荐引用方式
GB/T 7714		 Gong LF,Yan XL,Liang, Hongfei,et al. Rearrangement of sunspot magnetic field caused by an X1.5 solar flare[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2024,530(4):3897-3905.
APA 龚刘凡.,闫晓理.,Liang, Hongfei.,薛志科.,王金成.,...&张鑫生.(2024).Rearrangement of sunspot magnetic field caused by an X1.5 solar flare.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,530(4),3897-3905.
MLA 龚刘凡,et al."Rearrangement of sunspot magnetic field caused by an X1.5 solar flare".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 530.4(2024):3897-3905.

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