Repeated Sunspot Light Bridge Jets Associated with Slipping Base Brightenings
文献类型：期刊论文
| 作者 | Duan YD(段雅丹)1,2; Yan XL(闫晓理)1,2; Gao, Yuhang3,4; Wang JC(王金成)1,2; Xu Z(徐喆)1,2; Xiang YY(向永源)1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2026-05-20 |
| 卷号 | 1003期号:1 |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ae6340 |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Light bridge (LB) jets offer a unique window into small-scale eruptive phenomena within sunspots, the Sun's strongest magnetic environments; however, their generation mechanism remains a subject of debate. Using high-resolution observations from the New Vacuum Solar Telescope, we investigated six recurrent LB jets and the slipping motions of their jet base points (JBPs). Analogous to coronal jets, our observations show that these LB jets are characterized by a preceding JBP followed by a collimated jet spire. The JBP of each repeated jet along the LB displays apparent slipping motion at velocities of 0.6-1.5 km s-1, which is temporally correlated with a quasiperiodic enhanced photospheric horizontal motion of 1.3-6.5 km s-1. Following the slipping JBPs, the resulting jet spires' fronts display similar slipping behaviors within the upper solar atmosphere. The Chinese H alpha Solar Explorer reveals Ellerman-bomb-like spectral signatures at the JBPs, confirming that magnetic reconnection is operating at the jet base. Based on these results, we propose that repeated 3D reconnection occurring between the horizontal LB field and the ambient vertical umbral field may drive these LB jets. This process appears to be driven and/or modulated by quasiperiodic horizontal motion fueled by convective upflows and the transport of magnetic flux along the LB. This work suggests that some LB jets share a common reconnection-driven mechanism with coronal jets and provides direct evidence of slipping reconnection occurring along the sunspot LB. |
| 学科主题 | 天文学 ; 太阳与太阳系 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | X-RAY JETS ; MAGNETIC RECONNECTION ; FLUX EMERGENCE ; ELLERMAN BOMBS ; RUNNING RECONNECTION ; SHAPED JETS ; H-ALPHA ; SOLAR ; DYNAMICS ; PLASMA |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000]; NSFC[12403065]; National Science Foundation of China (NSFC)[12325303]; Yunling Scholar Project (Yunnan Revitalization Talent Support Program), Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009]; Yunnan Fundamental Research Projects[202301AT070350]; Center for Astronomical Mega-Science, Chinese Academy of Science; China National Space Administration |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001763753400001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0560000] ; NSFC[12403065] ; National Science Foundation of China (NSFC)[12325303] ; Yunling Scholar Project (Yunnan Revitalization Talent Support Program), Yunnan Key Laboratory of Solar Physics and Space Science[202205AG070009] ; Yunnan Fundamental Research Projects[202301AT070350] ; Center for Astronomical Mega-Science, Chinese Academy of Science ; China National Space Administration |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29238]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 通讯作者 | Duan YD(段雅丹) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China; duanyadan@ynao.ac.cn; 2.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People’s Republic of China; 3.School of Earth and Space Sciences, Peking University, Beijing 100871, People’s Republic of China; 4.Centre for Mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, Celestijnenlaan 200B bus 2400, B-3001 Leuven, Belgium |
| 推荐引用方式 GB/T 7714 | Duan YD,Yan XL,Gao, Yuhang,et al. Repeated Sunspot Light Bridge Jets Associated with Slipping Base Brightenings[J]. ASTROPHYSICAL JOURNAL LETTERS,2026,1003(1). |
| APA | 段雅丹,闫晓理,Gao, Yuhang,王金成,徐喆,&向永源.(2026).Repeated Sunspot Light Bridge Jets Associated with Slipping Base Brightenings.ASTROPHYSICAL JOURNAL LETTERS,1003(1). |
| MLA | 段雅丹,et al."Repeated Sunspot Light Bridge Jets Associated with Slipping Base Brightenings".ASTROPHYSICAL JOURNAL LETTERS 1003.1(2026). |
入库方式： OAI收割
来源：云南天文台
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