Onset mechanism of an inverted U-shaped solar filament eruption revealed by NVST, SDO, and STEREO-A observations

doi:10.1051/0004-6361/202347962

YNAO OpenIR > 抚仙湖太阳观测和研究基地

	Onset mechanism of an inverted U-shaped solar filament eruption revealed by NVST, SDO, and STEREO-A observations
	Wang JC(王金成)1,2 ; Yan XL(闫晓理)1,2 ; Cai, Qiangwei 3; Xue ZK(薛志科)1,2 ; Yang LH(杨丽恒)1,2 ; Li, Qiaoling 4; Xu Z(徐喆)1,2 ; Cai YF(蔡云芳)1,2 ; Yang LP(杨丽平)1,5 ; Peng Y(彭洋)1,5 ; Sun X(孙霞)1,6 ; Zhang XS(张鑫生)1,5 ; Zhou YA(周羿安)1
发表期刊	ASTRONOMY & ASTROPHYSICS
	2024-03-28
卷号	684
DOI	10.1051/0004-6361/202347962
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Sun: activity Sun: filaments prominences
摘要	Context. Solar filaments, also called solar prominences when appearing on the solar limb, consist of dense, cool plasma suspended in the hot and tenuous corona. They are the main potential sources of solar storms. Aims. To understand the onset mechanism of solar filaments, we investigated the eruption process of an inverted U-shaped solar filament and two precursory jet-like activities. Methods. Using observations from the New Vacuum Solar Telescope (NVST), the Solar Dynamics Observatory (SDO), and the Solar Terrestrial Relations Observatory-Ahead (STEREO-A), we investigated the event from two distinct observational perspectives: on the solar disk using NVST and SDO, and on the solar limb using STEREO-A. We employed both a nonlinear force-free field model and a potential field model to reconstruct the coronal magnetic field with the aim to understand its magnetic properties. Results. Two precursor jet-like activities were observed before the eruption, displaying an untwisted rotation. The second activity released an estimated twist of over two turns. During these two jet-like activities, Y-shaped brightenings, which are newly emerging magnetic flux accompanied by magnetic cancellation, and the formation of newly moving fibrils were identified. When these observational features are combined, it can be inferred that these two precursor jet-like activities released the magnetic field that constrained the filament and were caused by newly emerging magnetic flux. Before the filament eruption, it was observed that some moving flows had been ejected from the site as the onset of two jet-like activities, indicating the same physical process as in the two jet-like activities. Extrapolations revealed that the filament was below the height of the decay index of 1.0 and had a strong magnetic field (540 Gauss) and a high twist number (2.4 turns) before the eruption. An apparent rotational motion was observed during the filament eruption. Conclusions. We deduce that the solar filament, exhibiting an inverted U-shape, is a significantly twisted flux rope. The eruption of the filament was initiated by the release of constraining magnetic fields through continuous magnetic reconnection. This reconnection process was caused by the emergence of new magnetic flux.
资助项目	the National Key R&D Program of China[XDB0560000]; Strategic Priority Research Program of the Chinese Academy of Sciences[2019YFA0405000]; National Key R&D Program of China[12003064]; National Key R&D Program of China[12325303]; National Key R&D Program of China[11973084]; National Key R&D Program of China[12203020]; National Key R&D Program of China[12203097]; National Key R&D Program of China[12273110]; National Key R&D Program of China[12003068]; National Science Foundation of China (NSFC)[202205AG070009]; Yunnan Key Laboratory of Solar Physics and Space Science[202301AT070347]; Yunnan Key Laboratory of Solar Physics and Space Science[202201AT070194]; Yunnan Key Laboratory of Solar Physics and Space Science[202001AU070077]; Yunnan Science Foundation of China[202001AV070004]; Yunnan Science Foundation for Distinguished Young Scholars; Group for Innovation of Yunnan province
项目资助者	the National Key R&D Program of China[XDB0560000] ; Strategic Priority Research Program of the Chinese Academy of Sciences[2019YFA0405000] ; National Key R&D Program of China[12003064, 12325303, 11973084, 12203020, 12203097, 12273110, 12003068] ; National Science Foundation of China (NSFC)[202205AG070009] ; Yunnan Key Laboratory of Solar Physics and Space Science[202301AT070347, 202201AT070194, 202001AU070077] ; Yunnan Science Foundation of China[202001AV070004] ; Yunnan Science Foundation for Distinguished Young Scholars ; Group for Innovation of Yunnan province
语种	英语
学科领域	天文学 ; 天文学:太阳与太阳系
文章类型	Article
出版者	EDP SCIENCES S A
出版地	17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
ISSN	0004-6361
URL	查看原文
WOS记录号	WOS:001194836100003
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	CORONAL MASS EJECTIONS ; MAGNETIC-FLUX ROPES ; TRIGGER MECHANISM ; KINK INSTABILITY ; FIELD ; REGION ; PROMINENCE ; EVOLUTION ; RECONSTRUCTION ; RECONNECTION
EI入藏号	20241415841749
EI主题词	Magnetic flux
EI分类号	701.2 Magnetism: Basic Concepts and Phenomena - 932.3 Plasma Physics
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/27046
专题	抚仙湖太阳观测和研究基地
通讯作者	Wang JC(王金成)
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan, 650216, China; 2.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming, 650011, China; 3.Institute of Space Physics, Luoyang Normal University, Luoyang, 471934, China; 4.Department of Physics, Yunnan University, Kunming, 650091, China; 5.University of Chinese Academy of Sciences, Yuquan Road, Shijingshan Block, Beijing, 100049, China; 6.School of Physics and Electronic Information Technology, Yunnan Normal University, Kunming, 650500, China
第一作者单位	中国科学院云南天文台
通讯作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Wang JC,Yan XL,Cai, Qiangwei,et al. Onset mechanism of an inverted U-shaped solar filament eruption revealed by NVST, SDO, and STEREO-A observations[J]. ASTRONOMY & ASTROPHYSICS,2024,684.
APA	Wang JC.,Yan XL.,Cai, Qiangwei.,Xue ZK.,Yang LH.,...&Zhou YA.(2024).Onset mechanism of an inverted U-shaped solar filament eruption revealed by NVST, SDO, and STEREO-A observations.ASTRONOMY & ASTROPHYSICS,684.
MLA	Wang JC,et al."Onset mechanism of an inverted U-shaped solar filament eruption revealed by NVST, SDO, and STEREO-A observations".ASTRONOMY & ASTROPHYSICS 684(2024).

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