中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Two-step Evolution of a Rising Flux Rope Resulting in a Confined Solar Flare

文献类型:期刊论文

作者Yang, Shuhong1,2; Zhang, Jun1,2; Song, Qiao3; Bi Y(毕以)4; Li, Ting1,2
刊名ASTROPHYSICAL JOURNAL
出版日期2019-06-10
卷号878期号:1页码:9
ISSN号0004-637X
关键词magnetic reconnection Sun: activity Sun: flares Sun: magnetic fields
DOI10.3847/1538-4357/ab1f67
产权排序第1完成单位
文献子类Article
英文摘要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.
学科主题天文学 ; 太阳与太阳系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词INTERNAL RECONNECTION ; EXTERNAL RECONNECTION ; ERUPTIONS ; FORCE ; MODEL ; EJECTIONS ; ONSET
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]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000471316800001
资助机构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
源URL[http://ir.ynao.ac.cn/handle/114a53/20323]  
专题云南天文台_抚仙湖太阳观测站
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.

入库方式: OAI收割

来源:云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。