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Formation of Fan-spine Magnetic Topology through Flux Emergence and Subsequent Jet Production

文献类型：期刊论文

作者Duan, Yadan1; Tian, Hui1; Chen, Hechao5; Shen YD(申远灯)4; Sun, Zheng1; Hou, Zhenyong1; Li, Chuan2,3
刊名ASTROPHYSICAL JOURNAL LETTERS
出版日期2024-02-01
卷号962期号:2
ISSN号2041-8205
DOI10.3847/2041-8213/ad24f3
产权排序第3完成单位
文献子类Article
英文摘要Fan-spine magnetic structure, as a fundamental three-dimensional topology in magnetic reconnection theory, plays a crucial role in producing solar jets. However, how fan-spine configurations form in the solar atmosphere remains elusive. Using the Chinese H alpha Solar Explorer (CHASE) and the Solar Dynamics Observatory, we present a case study on the complete buildup of fan-spine topology driven by flux emergence and the subsequent jet production. Two fan-spine structures and the two associated null points are present. Variations in null-point heights and locations were tracked over time during flux emergence. The north fan-spine structure is found to be created through magnetic reconnection between the newly emerged flux and the background field. Gentle reconnection persistently occurs after formation of the north fan-spine structure, resulting in weak plasma outflows. Subsequently, as flux emergence and magnetic helicity injection continue, the formation and eruption of minifilaments after reconnection at the quasi-separatrix layer between the two nulls trigger three homologous jets. The CHASE observations reveal that the circular flare ribbon, inner bright patch, and remote brightening all exhibit redshifted signatures during these jet ejections. This work unveils the key role of flux emergence in the formation of fan-spine topology, and highlights the importance of minifilaments for subsequent jet production.
学科主题天文学
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词X-RAY JETS ; QUASI-SEPARATRIX LAYERS ; CIRCULAR-RIBBON FLARES ; SMALL-SCALE FILAMENT ; SOLAR CORONAL JETS ; H-ALPHA SURGES ; CHROMOSPHERIC EVAPORATION ; BLOWOUT JET ; SPECTROSCOPIC OBSERVATIONS ; RECONNECTION DRIVEN
资助项目National Key R&D Program of China[2021YFA0718600]; Natural Science Foundation of Beijing[1244053]; National Postdoctoral Programs[GZC20230097]; National Postdoctoral Programs[2023M740112]; NSFC[12303057]; Yunnan Key Laboratory of Solar Physics and Space Science[YNSPCC202210]; Natural Science Foundation of China[12173083]; Yunnan Science Foundation for Distinguished Young Scholars[202101AV070004]; CHASE science teams; China National Space Administration
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001163325400001
出版者IOP Publishing Ltd
资助机构National Key R&D Program of China[2021YFA0718600] ; Natural Science Foundation of Beijing[1244053] ; National Postdoctoral Programs[GZC20230097, 2023M740112] ; NSFC[12303057] ; Yunnan Key Laboratory of Solar Physics and Space Science[YNSPCC202210] ; Natural Science Foundation of China[12173083] ; Yunnan Science Foundation for Distinguished Young Scholars[202101AV070004] ; CHASE science teams ; China National Space Administration
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/26490]  
专题云南天文台_选址与日冕观测组
作者单位1.School of Earth and Space Sciences, Peking University, Beijing, 100871, People's Republic of China; huitian@pku.edu.cn;
2.Key Laboratory for Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210023, People's Republic of China
3.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People's Republic of China;
4.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China;
5.School of Physics and Astronomy, Yunnan University, Kunming 650500, People's Republic of China;
推荐引用方式
GB/T 7714		 Duan, Yadan,Tian, Hui,Chen, Hechao,et al. Formation of Fan-spine Magnetic Topology through Flux Emergence and Subsequent Jet Production[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,962(2).
APA Duan, Yadan.,Tian, Hui.,Chen, Hechao.,申远灯.,Sun, Zheng.,...&Li, Chuan.(2024).Formation of Fan-spine Magnetic Topology through Flux Emergence and Subsequent Jet Production.ASTROPHYSICAL JOURNAL LETTERS,962(2).
MLA Duan, Yadan,et al."Formation of Fan-spine Magnetic Topology through Flux Emergence and Subsequent Jet Production".ASTROPHYSICAL JOURNAL LETTERS 962.2(2024).

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来源：云南天文台

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