Multiwavelength Observations of the Formation and Eruption of a Complex Filament
文献类型：期刊论文
| 作者 | Zhang,Y.5,6; Bastian,T. S.6; Liu,J. H.3; Yu,S. J.1; Feng,S.4; Chen,J.5; Yan,Y. H.2,5 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 910期号:1 |
| 关键词 | Solar activity Solar flares Solar filaments Solar coronal mass ejections Solar magnetic fields |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abded6 |
| 英文摘要 | Abstract We present an analysis of the formation and eruption of a filament and fast coronal mass ejection associated with a flare that occurred in active region 11429 using observations in the ultraviolet, extreme ultraviolet, X-ray, and radio wavelength bands. Precursor activity began as an interaction between two filaments, F1 and F2, that are identified as having twisted magnetic flux ropes (MFRs). Transient brightenings in all wavelengths are observed as a result of this interaction, likely the result of magnetic reconnection between the two filaments. This interaction results in a reconfiguration of the two filaments into a long overlying filament and a shorter low-lying filament. The upper filament subsequently undergoes a partial confined eruption. Plasma flows originating near the east footpoint of F1 lead to an extension of the upper filament into the filament channel to the west, resulting in a new active region filament (ARF). This new filament begins a slow rise and expansion. During its slowly rising phase, the MFR in which the filament is embedded becomes visible, with both the filament and flux rope rising and expanding simultaneously. The twist of the magnetic rope is determined as four turns. The erupting configuration changes from a twisted arch shape to a reversed γ shape within ～75 s at the beginning of the fast-rise phase, representing a transformation from twist to writhe. The observations provide a clear example of filament formation via the tether-cutting reconnection of two nearby filaments. A helical kink instability may be the trigger of the ARF eruption. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-637X-910-1-ABDED6 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/59991]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhang,Y. |
| 作者单位 | 1.Center for Solar-Terrestrial Research, New Jersey Institute of Technology, Newark, NJ 07102, USA 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.Shijiazhuang University, Shijiazhuang 050035, People’s Republic of China 4.Kunming University of Science and Technology, Kunming 650504, People’s Republic of China 5.Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China zhangyin@bao.ac.cn 6.National Radio Astronomy Observatory, Charlottesville, VA 22903, USA |
| 推荐引用方式 GB/T 7714 | Zhang,Y.,Bastian,T. S.,Liu,J. H.,et al. Multiwavelength Observations of the Formation and Eruption of a Complex Filament[J]. The Astrophysical Journal,2021,910(1). |
| APA | Zhang,Y..,Bastian,T. S..,Liu,J. H..,Yu,S. J..,Feng,S..,...&Yan,Y. H..(2021).Multiwavelength Observations of the Formation and Eruption of a Complex Filament.The Astrophysical Journal,910(1). |
| MLA | Zhang,Y.,et al."Multiwavelength Observations of the Formation and Eruption of a Complex Filament".The Astrophysical Journal 910.1(2021). |
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来源：国家天文台
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