Spectroscopic Case Studies of Four Long-duration Transition-region Explosive Events
文献类型：期刊论文
| 作者 | Zhou YA(周羿安)1,2; Yan XL(闫晓理)1,2; Xue ZK(薛志科)1,2; Yang LH(杨丽恒)1,2; Wang JC(王金成)1,2; Xu Z(徐喆)1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 1000期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae4c4f |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | This work presents a detailed spectroscopic case study of four long-duration transition-region (TR) explosive events (EEs) observed in NOAA Active Region 13213 on 2023 February 10 using the Interface Region Imaging Spectrograph. The dynamic spectral evolution of each event is tracked through multicomponent Gaussian fitting of the Si iv 1403 & Aring; line profiles. Three recurrent spectral morphologies are identified and characterized: bilateral wing enhancement, exclusive red-wing enhancement, and exclusive blue-wing enhancement, among which bilateral enhancement is the most common in the studied cases. Throughout their lifetimes of 20-25 minutes, these events display sustained and evolving bidirectional flows, with high-velocity components (divided by v divided by > 100 km s-1) emerging in late phases. These spectral signatures are interpreted as evidence of ongoing or recurrent magnetic reconnection, where bilateral profiles correspond to bidirectional outflows, and exclusive wing enhancements represent geometric or evolutionary phases of the same process. In contrast, cotemporal flare ribbons and loop structures exhibit pronounced, unidirectional redshifts. This study underscores that significant non-Gaussian wing enhancement, rather than exclusively high speed, constitutes a defining spectroscopic signature of EEs, and provides detailed kinematic constraints on the dynamics of such TR EEs. |
| 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 | MAGNETIC RECONNECTION ; QUIET-SUN ; CORONAL HOLE ; 2D ENVIRONMENT ; IRIS ; SCALE ; SIGNATURES ; JETS ; SIMULATIONS ; EVOLUTION |
| 资助项目 | MOST divided by National Natural Science Foundation of China (NSFC)[12325303]; MOST divided by National Natural Science Foundation of China (NSFC)[11973084]; MOST divided by National Natural Science Foundation of China (NSFC)[11803085]; MOST divided by National Natural Science Foundation of China (NSFC)[12003064]; MOST divided by National Natural Science Foundation of China (NSFC)[U1831210]; MOST divided by National Natural Science Foundation of China (NSFC)[11803002]; Yunnan Provincial Science and Technology Department ((sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic))[202305AH340002] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001722064800001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Natural Science Foundation of China (NSFC)[12325303, 11973084, 11803085, 12003064, U1831210, 11803002] ; Yunnan Provincial Science and Technology Department ((sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic))[202305AH340002] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29065]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 通讯作者 | Zhou YA(周羿安) |
| 作者单位 | 1.Yunnan Key Laboratory of Solar Physics and Space Science, Kunming 650216, People’s Republic of China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming Yunnan 650216, People’s Republic of China; zhouyian@ynao.ac.cn, yanxl@ynao.ac.cn; |
| 推荐引用方式 GB/T 7714 | Zhou YA,Yan XL,Xue ZK,et al. Spectroscopic Case Studies of Four Long-duration Transition-region Explosive Events[J]. ASTROPHYSICAL JOURNAL,2026,1000(2). |
| APA | 周羿安,闫晓理,薛志科,杨丽恒,王金成,&徐喆.(2026).Spectroscopic Case Studies of Four Long-duration Transition-region Explosive Events.ASTROPHYSICAL JOURNAL,1000(2). |
| MLA | 周羿安,et al."Spectroscopic Case Studies of Four Long-duration Transition-region Explosive Events".ASTROPHYSICAL JOURNAL 1000.2(2026). |
入库方式： OAI收割
来源：云南天文台
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