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

doi:10.1093/mnras/stae1020

YNAO OpenIR > 抚仙湖太阳观测和研究基地

	Rearrangement of sunspot magnetic field caused by an X1.5 solar flare
	Gong LF(龚刘凡)1,2 ; Yan XL(闫晓理)2,3 ; Liang, Hongfei 1; 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)2,4 ; Yang LP(杨丽平)2,4 ; Zhang XS(张鑫生)2,4
发表期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
	2024-05-06
卷号	530 期号:4 页码:3897-3905
DOI	10.1093/mnras/stae1020
产权排序	第2完成单位
收录类别	SCI ; EI
关键词	Sun: activity Sun: flares Sun: photosphere
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.
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
项目资助者	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
语种	英语
学科领域	天文学 ; 太阳与太阳系
文章类型	Article
出版者	OXFORD UNIV PRESS
出版地	GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN	0035-8711
URL	查看原文
WOS记录号	WOS:001215169400005
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	OBSERVATIONAL EVIDENCE ; RAPID CHANGES ; HELICITY ; ROTATION ; ENERGY ; FILAMENT ; MOTION
EI入藏号	20242016101746
EI主题词	Magnetic fields
EI分类号	701.2 Magnetism: Basic Concepts and Phenomena
引用统计
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27208
专题	抚仙湖太阳观测和研究基地光纤阵列太阳光学望远镜研究组
作者单位	1.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; 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People’s Republic of China; 3.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People’s Republic of China; 4.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
第一作者单位	中国科学院云南天文台
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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