FINE STRUCTURES AND OVERLYING LOOPS OF CONFINED SOLAR FLARES
文献类型：期刊论文
| 作者 | Yang, Shuhong1 ; Zhang, Jun1; Xiang, Yongyuan2
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 793期号:2 |
| 关键词 | Sun: atmosphere Sun: evolution Sun: flares Sun: magnetic fields |
| 英文摘要 | Using the H alpha observations from the New Vacuum Solar Telescope at the Fuxian Solar Observatory, we focus on the fine structures of three confined flares and the issue why all the three flares are confined instead of eruptive. All the three confined flares take place successively at the same location and have similar morphologies, so can be termed homologous confined flares. In the simultaneous images obtained by the Solar Dynamics Observatory, many large-scale coronal loops above the confined flares are clearly observed in multi-wavelengths. At the pre-flare stage, two dipoles emerge near the negative sunspot, and the dipolar patches are connected by small loops appearing as arch-shaped H alpha fibrils. There exists a reconnection between the small loops, and thus the H alpha fibrils change their configuration. The reconnection also occurs between a set of emerging H alpha fibrils and a set of pre-existing large loops, which are rooted in the negative sunspot, a nearby positive patch, and some remote positive faculae, forming a typical three-legged structure. During the flare processes, the overlying loops, some of which are tracked by activated dark materials, do not break out. These direct observations may illustrate the physical mechanism of confined flares, i.e., magnetic reconnection between the emerging loops and the pre-existing loops triggers flares and the overlying loops prevent the flares from being eruptive. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341885900007 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6411]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Fuxian Solar Observ, Yunnan Observ, Kunming 650011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shuhong,Zhang, Jun,Xiang, Yongyuan. FINE STRUCTURES AND OVERLYING LOOPS OF CONFINED SOLAR FLARES[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,793(2). |
| APA | Yang, Shuhong,Zhang, Jun,&Xiang, Yongyuan.(2014).FINE STRUCTURES AND OVERLYING LOOPS OF CONFINED SOLAR FLARES.ASTROPHYSICAL JOURNAL LETTERS,793(2). |
| MLA | Yang, Shuhong,et al."FINE STRUCTURES AND OVERLYING LOOPS OF CONFINED SOLAR FLARES".ASTROPHYSICAL JOURNAL LETTERS 793.2(2014). |
入库方式： OAI收割
来源：国家天文台
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