Observing Formation of Flux Rope by Tether-cutting Reconnection in the Sun
文献类型：期刊论文
| 作者 | Xue ZK(薛志科)1,2,3 ; Yan XL(闫晓理)1,2,3; Yang LH(杨丽恒)1,3; Wang JC(王建成)1,3,4; Zhao L(赵丽)1,3; Wang JC(王金成)
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2017-05-10 |
| 卷号 | 840期号:2 |
| 关键词 | Sun: activity Sun: chromosphere Sun: corona Sun: magnetic fields |
| ISSN号 | 2041-8205 |
| 产权排序 | 第1完成单位 |
| 通讯作者 | Xue, Zhike(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China) |
| 英文摘要 | Tether-cutting reconnection is considered as one mechanism for the formation of a flux rope. It has been proposed for more than 30 years; however, so far, direct observations of it are very rare. In this Letter, we present observations of the formation of a flux rope via tether-cutting reconnection in NOAA AR 11967 on 2014 February 2 by combining observations with the New Vacuum Solar Telescope and the Solar Dynamic Observatory. The tether-cutting reconnection occurs between two sets of highly sheared magnetic arcades. Comprehensive observational evidence of the reconnection is as follows: changes of the connections between the arcades, brightenings at the reconnection site, hot outflows, formation of a flux rope, slow-rise motion of the flux rope, and flux cancelation. The outflows are along three directions from the reconnection site to the footpoints with the velocities from 24 +/- 1 km s(-1) to 69 +/- 5 km s(-1). Additionally, it is found that the newly formed flux rope connects far footpoints and has a left-handed twisted structure with many fine threads and a concave-up-shape structure in the middle. All the observations are in agreement with the tether-cutting model and provide evidence that tether-cutting reconnection leads to the formation of the flux rope associated with flux shear flow and cancelation. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 天文学 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | VACUUM SOLAR TELESCOPE ; DYNAMICS-OBSERVATORY SDO ; CORONAL MASS EJECTIONS ; MAGNETIC RECONNECTION ; FILAMENT ERUPTION ; REGION PROMINENCE ; HIGH-RESOLUTION ; EMERGENCE ; FLARES ; DRIVEN |
| 收录类别 | SCI |
| 原文出处 | http://stacks.iop.org/2041-8205/840/i=2/a=L23?key=crossref.4434c91688b870c9692a3163e786095c |
| 语种 | 英语 |
| WOS记录号 | WOS:000402542600001 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/10094]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming Yunnan 650216, China 2.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, China 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China 4.University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Xue ZK,Yan XL,Yang LH,et al. Observing Formation of Flux Rope by Tether-cutting Reconnection in the Sun[J]. ASTROPHYSICAL JOURNAL LETTERS,2017,840(2). |
| APA | Xue ZK,Yan XL,Yang LH,Wang JC,Zhao L,&Wang JC.(2017).Observing Formation of Flux Rope by Tether-cutting Reconnection in the Sun.ASTROPHYSICAL JOURNAL LETTERS,840(2). |
| MLA | Xue ZK,et al."Observing Formation of Flux Rope by Tether-cutting Reconnection in the Sun".ASTROPHYSICAL JOURNAL LETTERS 840.2(2017). |
入库方式： OAI收割
来源：云南天文台
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