| Modelling the magnetic structure of a large-scale horse-shoe-like filament in a decaying and diffuse active region | |
Kang KF(康凯锋)1,2,3 ; Guo, Yang4; Roussev, Ilia I5; Keppens, Rony6; Lin J(林隽)1,2,3
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| 发表期刊 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 2023-01 | |
| 卷号 | 518期号:1页码:388-404 |
| DOI | 10.1093/mnras/stac3156 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI ; EI |
| 关键词 | Sun: activity Sun: chromosphere Sun: corona Sun: filaments, prominences Sun: photosphere |
| 摘要 | A large-scale, horse-shoe-like filament was investigated and the magnetic field around it was reconstructed. This is an intermediate filament (IF) that appeared on the solar disc for the first time at 02:00 UT on 2015 November 7, and took 8 d to move to the central median on the solar disc. The active region AR 12452 around which the filament occurred was diffuse so that the magnetic field nearby was weak, the average field strength is 106G. Therefore, the existing approaches to extrapolating the coronal magnetic field and to constructing the filament configuration in the region with strong background field do not work well here. On the basis of the regularized Biot-Savart laws method, we successfully constructed a data-constrained, non-linear force-free field configuration for this IF observed on 2015 November 14. The overall IF configuration obtained in this way matches well the morphology suggested by a 304 angstrom image taken by the Atmospheric Imaging Assembly on board Solar Dynamics Observatory. Magnetic dips in the configuration were coincident in space with the H alpha features of the filament, which is lower in altitude than the features seen in 304 angstrom. This suggests that the cold plasma fills the lower part of the filament, and hot plasma is situated in the higher region. A quasi-separatrix layer wraps the filament, and both the magnetic field and the electric current are stronger near the inner edge of the filament. |
| 资助项目 | Strategic Priority Research Programme of the Chinese Academy of Sciences[XDA17040507] ; National Science Foundation of China (NSFC)[11933009] ; Yunling Scholar Project of the Yunnan Province ; Yunnan Province Scientist Workshop of Solar Physics ; NSFC[11773016] ; NSFC[11961131002] ; Ministry of Science and Technology[2020YFC2201201] ; Research Foundation - Flanders (FWO)[G0B4521N] ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme[833251] ; Internal funds KU Leuven[C14/19/089] |
| 项目资助者 | Strategic Priority Research Programme of the Chinese Academy of Sciences[XDA17040507] ; National Science Foundation of China (NSFC)[11933009] ; Yunling Scholar Project of the Yunnan Province ; Yunnan Province Scientist Workshop of Solar Physics ; NSFC[11773016, 11961131002] ; Ministry of Science and Technology[2020YFC2201201] ; Research Foundation - Flanders (FWO)[G0B4521N] ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme[833251] ; Internal funds KU Leuven[C14/19/089] |
| 语种 | 英语 |
| 学科领域 | 天文学 ; 太阳与太阳系 ; 太阳物理学 |
| 文章类型 | Article |
| 出版者 | OXFORD UNIV PRESS |
| 出版地 | GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND |
| ISSN | 0035-8711 |
| URL | 查看原文 |
| WOS记录号 | WOS:000900308100028 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | CONFIGURATIONS SUPPORTING PROMINENCES ; FORCE-FREE ; H-ALPHA ; FLUX-ROPE ; MAGNETOSTATIC ATMOSPHERES ; 3-DIMENSIONAL STRUCTURES ; HELICITY ESTIMATIONS ; NULL POINTS ; FIELD ; VECTOR |
| EI入藏号 | 20232014105435 |
| EI主题词 | Magnetic fields |
| EI分类号 | 701.2 Magnetism: Basic Concepts and Phenomena - 708.4 Magnetic Materials - 804.1 Organic Compounds - 932.3 Plasma Physics |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/25670 |
| 专题 | 太阳物理研究组 |
| 通讯作者 | Guo, Yang; Lin J(林隽) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, PO Box 110, Kunming, Yunnan 650216, China; 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China; 3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China; 4.School of Astronomy and Space Science and Key Laboratory for Modern Astronomy and Astrophysics, Nanjing University, Nanjing, Jiangsu 210023, China; 5.Space Sciences Laboratory, University of California Berkeley, 7 Gauss Way, Berkeley, CA 94720, USA; 6.Centre for Mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, Celestijnenlaan 200B, B-3001 Leuven, Belgium |
| 第一作者单位 | 中国科学院云南天文台 |
| 通讯作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Kang KF,Guo, Yang,Roussev, Ilia I,et al. Modelling the magnetic structure of a large-scale horse-shoe-like filament in a decaying and diffuse active region[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,518(1):388-404. |
| APA | Kang KF,Guo, Yang,Roussev, Ilia I,Keppens, Rony,&Lin J.(2023).Modelling the magnetic structure of a large-scale horse-shoe-like filament in a decaying and diffuse active region.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,518(1),388-404. |
| MLA | Kang KF,et al."Modelling the magnetic structure of a large-scale horse-shoe-like filament in a decaying and diffuse active region".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 518.1(2023):388-404. |
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| Modelling the magnet（1KB） | 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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