Round-trip Slipping Motion of the Circular Flare Ribbon Evidenced in a Fan-spine Jet
文献类型:期刊论文
作者 | Shen YD(申远灯)1; Qu, Zhining2; Zhou CR(周承瑞)1; Duan, Yadan3; Tang ZH(汤泽浩)1; Yuan, Ding4 |
刊名 | The Astrophysical Journal Letters |
出版日期 | 2019-10-29 |
卷号 | 885期号:1 |
ISSN号 | 2041-8205 |
关键词 | Solar activity Solar filaments Solar flares Solar magnetic fields Solar chromosphere |
DOI | 10.3847/2041-8213/ab4cf3 |
产权排序 | 第1完成单位 |
英文摘要 | A solar jet that occurred on 2014 July 31, which was accompanied by a GOES C1.3 flare and a mini-filament eruption at the jet base, was studied by using observations taken by the New Vacuum Solar Telescope and the Solar Dynamic Observatory. Magnetic field extrapolation revealed that the jet was confined in a fan-spine magnetic system that hosts a null point at the height of about 9 Mm from the solar surface. An inner flare ribbon surrounded by an outer circular ribbon and a remote ribbon were observed to be associated with the eruption, in which the inner and remote ribbons, respectively located at the footprints of the inner and outer spines, while the circular one manifested the footprint of the fan structure. It is worth noting that the west part of the circular ribbon exhibited an interesting round-trip slipping motion, while the inner ribbon and the circular ribbon’s east part displayed a northward slipping motion. Our analysis results indicate that the slipping motions of the inner and the circular flare ribbons reflected the slipping magnetic reconnection process in the fan’s quasi-separatrix layer, while the remote ribbon was associated with the magnetic reconnection at the null point. In addition, the filament eruption was probably triggered by the magnetic cancellation around its south end, which further drove the slipping reconnection in the fan quasi-separatrix layer and the reconnection at the null point. |
学科主题 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
URL标识 | 查看原文 |
语种 | 英语 |
出版者 | The American Astronomical Society |
WOS记录号 | IOP:2041-8205-885-1-AB4CF3 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/21453] |
专题 | 云南天文台_选址与日冕观测组 |
通讯作者 | Shen YD(申远灯) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China 2.School of Automation and Information Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China 3.Yunnan Normal University, Department of Physics, Kunming 650500, People's Republic of China 4.Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, 518055, People's Republic of China |
推荐引用方式 GB/T 7714 | Shen YD,Qu, Zhining,Zhou CR,et al. Round-trip Slipping Motion of the Circular Flare Ribbon Evidenced in a Fan-spine Jet[J]. The Astrophysical Journal Letters,2019,885(1). |
APA | Shen YD,Qu, Zhining,Zhou CR,Duan, Yadan,Tang ZH,&Yuan, Ding.(2019).Round-trip Slipping Motion of the Circular Flare Ribbon Evidenced in a Fan-spine Jet.The Astrophysical Journal Letters,885(1). |
MLA | Shen YD,et al."Round-trip Slipping Motion of the Circular Flare Ribbon Evidenced in a Fan-spine Jet".The Astrophysical Journal Letters 885.1(2019). |
入库方式: OAI收割
来源:云南天文台
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