| Two Intermittent Eruptions of a Minifilament Triggered by a Two-step Magnetic Reconnection Within a Fan-spine Configuration | |
Yang LP(杨丽平)1,2 ; Xue ZK(薛志科)1,3; Wang JC(王金成)1,3; Yang LH(杨丽恒)1,3; Li, Qiaoling4,5; Zhou YA(周羿安)1,3; Peng Y(彭洋)1,2; Zhang XS(张鑫生)1,2
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2024-11-01 | |
| 卷号 | 976期号:1 |
| DOI | 10.3847/1538-4357/ad84f9 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 摘要 | Although numerous works have concentrated on minifilament eruption in complex configurations, the detailed triggering mechanism is still an open question. Using the observational data from the New Vacuum Solar Telescope and Solar Dynamics Observatory, we studied a two-step magnetic reconnection process that triggered a minifilament that erupted intermittently within a fan-spine structure in the active region NOAA 13272. The first-step reconnection occurred between a set of low-lying small-scale magnetic loops and their nearby inner spine, resulting in the appearance of a brightening at the reconnection site and the reconfiguration of the inner spine. As the reconfigured inner spine approached the outer spine, reconnection occurred between them at the null point and led to the minifilament erupting partially. Subsequently, this two-step reconnection scenario occurred again and triggered the minifilament to erupt completely. The null point reconnection was supported by the changes in the topological structure of the inner spine and the outer spine, circular ribbon flares, remote brightenings, and the brightening of the outer spine. The null point reconnection related to the second eruption was also confirmed by some plasmoids expelled from the reconnection site. Further, the results of the magnetic field extrapolation reveal the existence of a fan-spine structure involving a three-dimensional null point. We suggest that the two-step reconnection triggers the two eruptions, in which the null point reconnection plays a direct role, but the dynamical evolution of the inner spine and the outer spine driven by the first-step reconnection might be a precursor of the subsequent null point reconnection. |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000]; National Science Foundation of China (NSFC)[12325303]; National Science Foundation of China (NSFC)[12203097]; National Science Foundation of China (NSFC)[12433010]; Yunnan Science Foundation of China[202201AT070194]; Yunnan Science Foundation of China[202101AT070032]; Yunnan Science Foundation of China[202301AT070347]; Key Research and Development Project of Yunnan Province[202003AD150019]; CAS Light of West China Program; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]; Yunnan Provincial Science and Technology Department[202305AH340002]; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004]; Yunnan Fundamental Research Projects[202301AT070349]; Yunnan Revitalization Talent Support Program[202305AS350029]; Yunnan Revitalization Talent Support Program[202305AT350005] |
| 项目资助者 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; National Science Foundation of China (NSFC)[12325303, 12203097, 12433010] ; Yunnan Science Foundation of China[202201AT070194, 202101AT070032, 202301AT070347] ; Key Research and Development Project of Yunnan Province[202003AD150019] ; CAS Light of West China Program ; Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] ; Yunnan Provincial Science and Technology Department[202305AH340002] ; Yunnan Science Foundation for Distinguished Young Scholars[202001AV070004] ; Yunnan Fundamental Research Projects[202301AT070349] ; Yunnan Revitalization Talent Support Program[202305AS350029, 202305AT350005] |
| 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 | IOP Publishing Ltd |
| 出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:001358780700001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | CIRCULAR-RIBBON FLARES ; QUASI-SEPARATRIX LAYERS ; SOLAR CORONAL JETS ; X-RAY JETS ; FILAMENT ERUPTIONS ; FLUX ROPE ; BLOWOUT JET ; NULL POINTS ; H-ALPHA ; REGION |
| 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/114a53/27793 |
| 专题 | 抚仙湖太阳观测和研究基地 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; [email protected]; 2.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 3.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People's Republic of China; 4.Department of Physics, Yunnan University, Kunming 650091, People's Republic of China; 5.Department of Astronomy, Key Laboratory of Astroparticle Physics of Yunnan Province, Yunnan University, Kunming 650091, 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 | Yang LP,Xue ZK,Wang JC,et al. Two Intermittent Eruptions of a Minifilament Triggered by a Two-step Magnetic Reconnection Within a Fan-spine Configuration[J]. ASTROPHYSICAL JOURNAL,2024,976(1). |
| APA | 杨丽平.,薛志科.,王金成.,杨丽恒.,Li, Qiaoling.,...&张鑫生.(2024).Two Intermittent Eruptions of a Minifilament Triggered by a Two-step Magnetic Reconnection Within a Fan-spine Configuration.ASTROPHYSICAL JOURNAL,976(1). |
| MLA | 杨丽平,et al."Two Intermittent Eruptions of a Minifilament Triggered by a Two-step Magnetic Reconnection Within a Fan-spine Configuration".ASTROPHYSICAL JOURNAL 976.1(2024). |
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