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Resolving interchange reconnection dynamics in a fan-spine-like topology observed by Solar Orbiter

文献类型：期刊论文

作者Duan YD(段雅丹)1,2,3; Yan XL(闫晓理)1,2; Hong JC(洪俊超)1; Chen, Hechao2,6; Gao, Yuhang3,5; Sun, Zheng3,4; Hou, Zhenyong3; Wang JC(王金成)1,2
刊名ASTRONOMY & ASTROPHYSICS
出版日期2026-01-27
卷号706
关键词Sun: activity Sun: atmosphere Sun: corona
ISSN号0004-6361
DOI10.1051/0004-6361/202557158
产权排序第1完成单位
文献子类Article
英文摘要Interchange reconnection is thought to play a significant role in the production of solar jets and the solar wind. The dynamics of interchange reconnection in the low corona might be more complex than recognized before in higher temporal and spatial resolutions, however. Using unprecedentedly high-resolution observations from the Extreme Ultraviolet Imager (EUI) on board the Solar Orbiter, we analyzed the dynamics of interchange reconnection in a small-scale fan-spine-like topology. The interchange reconnection that continuously occurs around the multinull points of the fan-spine-like system exhibits a quasi-periodicity of similar to 200 s that nearly covers the entire evolution of this system. Continuous evolution and a reversal of multiple current sheets are observed over time near the null point. These results reveal that the dynamics of interchange reconnection is likely modulated by emerging magnetic structures, such as mini-filaments and emerging arcades. Moreover, a curtain-like feature with a width of 1.7 Mm is also observed near the interchange reconnection region and persistently generates outflows. This is similar to the separatrix curtain reported in the pseudostreamer structure. This study not only demonstrates the complex and variable reconnection dynamics of interchange reconnection within a small-scale fan-spine topology, but also provides insights into the self-similarity of magnetic field configurations across multiple temporal and spatial scales.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE
WOS关键词CORONAL MASS EJECTIONS ; MAGNETIC RECONNECTION ; CIRCULAR-RIBBON ; NULL-POINT ; FILAMENT ERUPTION ; BREAKOUT MODEL ; FLUX EMERGENCE ; CURRENT SHEETS ; BRIGHT POINTS ; 2 EPISODES
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000]; NSFC[12403065]; NSFC[12425301]; NSFC[12573061]; NSFC[12173084]; NSFC[12303057]; Beijing Natural Science Foundation[1244053]; National Science Foundation of China (NSFC)[12325303]; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]; Yunnan Fundamental Research Projects[202301AT070347]; Yunnan Fundamental Research Projects[202301AT070349]; Yunnan Fundamental Research Projects[202401CF070165]; Yunnan Fundamental Research Projects[202501AW070002]; CAS Light of West China Program; Yunnan Science Foundation of China[202401AT070071]; Belgian Federal Science Policy Office[BELSPO/PRODEX PEA 4000112292]; Centre National d' Etudes Spatiales (CNES); UK Space Agency (UKSA); Bundesministerium fur Wirtschaft und Energie (BMWi) through the Deutsches Zentrum fur Luftund Raumfahrt (DLR); Swiss Space Office (SSO)
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001673223900022
出版者EDP SCIENCES S A
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; NSFC[12403065, 12425301, 12573061, 12173084, 12303057] ; Beijing Natural Science Foundation[1244053] ; National Science Foundation of China (NSFC)[12325303] ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] ; Yunnan Fundamental Research Projects[202301AT070347, 202301AT070349] ; Yunnan Fundamental Research Projects[202401CF070165, 202501AW070002] ; CAS Light of West China Program ; Yunnan Science Foundation of China[202401AT070071] ; Belgian Federal Science Policy Office[BELSPO/PRODEX PEA 4000112292] ; Centre National d' Etudes Spatiales (CNES) ; UK Space Agency (UKSA) ; Bundesministerium fur Wirtschaft und Energie (BMWi) through the Deutsches Zentrum fur Luftund Raumfahrt (DLR) ; Swiss Space Office (SSO)
源URL[http://ir.ynao.ac.cn/handle/114a53/28899]  
专题云南天文台_太阳物理研究组
通讯作者Duan YD(段雅丹)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences Kunming 650216, China;
2.Yunnan Key Laboratory of Solar Physics and Space Science Kunming 650216, PR China;
3.School of Earth and Space Sciences, Peking University Beijing 100871, PR China;
4.Leibniz Institute for Astrophysics Potsdam An der Sternwarte 16 Potsdam 14482, Germany
5.Centre for Mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven Celestijnenlaan 200B bus 2400 B-3001 Leuven, Belgium;
6.School of Physics and Astronomy, Yunnan University Kunming 650500, China;
推荐引用方式
GB/T 7714		 Duan YD,Yan XL,Hong JC,et al. Resolving interchange reconnection dynamics in a fan-spine-like topology observed by Solar Orbiter[J]. ASTRONOMY & ASTROPHYSICS,2026,706.
APA 段雅丹.,闫晓理.,洪俊超.,Chen, Hechao.,Gao, Yuhang.,...&王金成.(2026).Resolving interchange reconnection dynamics in a fan-spine-like topology observed by Solar Orbiter.ASTRONOMY & ASTROPHYSICS,706.
MLA 段雅丹,et al."Resolving interchange reconnection dynamics in a fan-spine-like topology observed by Solar Orbiter".ASTRONOMY & ASTROPHYSICS 706(2026).

入库方式： OAI收割

来源：云南天文台

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