| Two-step Evolution of a Rising Flux Rope Resulting in a Confined Solar Flare | |
Yang, Shuhong1,2; Zhang, Jun1,2; Song, Qiao3; Bi Y(毕以)4 ; Li, Ting1,2
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2019-06-10 | |
| 卷号 | 878期号:1页码:9 |
| DOI | 10.3847/1538-4357/ab1f67 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | magnetic reconnection Sun: activity Sun: flares Sun: magnetic fields |
| 摘要 | Combining the Solar Dynamics Observatory and the New Vacuum Solar Telescope observations, we study a confined flare triggered by a rising flux rope within the trailing sunspots of active region 12733. The flux rope lying above the sheared polarity inversion line can be constructed through magnetic extrapolation but could not be detected in multiwavelength images at the pre-flare stage. The conspicuous shearing motions between the opposite-polarity fields in the photosphere are considered to be responsible for the flux rope formation. The maximum twist of the flux rope is as high as -1.76, and then the flux rope rises due to the kink instability. Only when the flare starts can the flux rope be observed in high-temperature wavelengths. The differential emission measure results confirm that this flux rope is a high-temperature structure. Associated with the rising flux rope, there appear many post-flare loops and a pair of flare ribbons. When the rising flux rope meets and reconnects with the large-scale overlying field lines, a set of large-scale twisted loops are formed, and two flare ribbons propagating in opposite directions appear on the outskirts of the former ribbons, indicating that the twist of the flux rope is transferred to a much larger system. These results imply that the external reconnection between the rising flux rope and the large-scale overlying loops plays an important role in the confined flare formation. |
| 资助项目 | National Natural Science Foundations of China[11673035] ; National Natural Science Foundations of China[11790304] ; National Natural Science Foundations of China[41404136] ; National Natural Science Foundations of China[11773039] ; National Natural Science Foundations of China[11533008] ; National Natural Science Foundations of China[41774195] ; National Natural Science Foundations of China[11790300] ; Key Programs of the Chinese Academy of Sciences[QYZDJ-SSW-SLH050] ; Youth Innovation Promotion Association of CAS[2014043] ; Youth Innovation Promotion Association of CAS[2017078] ; Young Elite Scientists Sponsors hip Program by CAST[2018QNRC001] |
| 项目资助者 | National Natural Science Foundations of China ; Key Programs of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of CAS ; Young Elite Scientists Sponsors hip Program by CAST |
| 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:000471316800001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | INTERNAL RECONNECTION ; EXTERNAL RECONNECTION ; ERUPTIONS ; FORCE ; MODEL ; EJECTIONS ; ONSET |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/20324 |
| 专题 | 抚仙湖太阳观测和研究基地 |
| 通讯作者 | Yang, Shuhong |
| 作者单位 | 1.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People's Republic of China 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China 3.Key Laboratory of Space Weather, National Center for Space Weather, China Meteorological Administration, Beijing 100081, People's Republic of China 4.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China |
| 推荐引用方式 GB/T 7714 | Yang, Shuhong,Zhang, Jun,Song, Qiao,et al. Two-step Evolution of a Rising Flux Rope Resulting in a Confined Solar Flare[J]. ASTROPHYSICAL JOURNAL,2019,878(1):9. |
| APA | Yang, Shuhong,Zhang, Jun,Song, Qiao,Bi Y,&Li, Ting.(2019).Two-step Evolution of a Rising Flux Rope Resulting in a Confined Solar Flare.ASTROPHYSICAL JOURNAL,878(1),9. |
| MLA | Yang, Shuhong,et al."Two-step Evolution of a Rising Flux Rope Resulting in a Confined Solar Flare".ASTROPHYSICAL JOURNAL 878.1(2019):9. |
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| Two-step Evolution o（6473KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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