Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope
文献类型：期刊论文
| 作者 | Yan XiaoLi2; Xue ZhiKe2; Xiang YongYuan2; Yang LiHeng2 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2015 |
| 卷号 | 15期号:10页码:1725 |
| 关键词 | MAGNETIC-STRUCTURE SPECKLE MASKING PROMINENCE DYNAMICS THREADS OSCILLATIONS HINODE/SOT ERUPTION Sun: filaments, prominences Sun: activity Sun: corona |
| ISSN号 | 1674-4527 |
| 英文摘要 | Study of the small-scale structures and material flows associated with solar quiescent filaments is very important for understanding the formation and equilibrium of solar filaments. Using high resolution H alpha data observed by the New Vacuum Solar Telescope, we present the structures of barbs and material flows along the threads across the spine in two quiescent filaments on 2013 September 29 and on 2012 November 2, respectively. During the evolution of the filament barb, several parallel tube-shaped structures formed and the width of the structures ranged from about 2.3 Mm to 3.3Mm. The parallel tube-shaped structures merged together accompanied by material flows from the spine to the barb. Moreover, the boundary between the barb and surrounding atmosphere was very neat. The counter-streaming flows were not found to appear alternately in the adjacent threads of the filament. However, the large-scale patchy counter-streaming flows were detected in the filament. The flows in one patch of the filament have the same direction but flows in the adjacent patch have opposite direction. The patches of two opposite flows with a size of about 10'' were alternately exhibited along the spine of the filament. The velocity of these material flows ranged from 5.6 km s(-1) to 15.0 km s(-1). The material flows along the threads of the filament did not change their direction for about two hours and fourteen minutes during the evolution of the filament. Our results confirm that the large-scale counter-streaming flows with a certain width along the threads of solar filaments exist and are coaligned well with the threads. |
| 资助项目 | [National Natural Science Foundation of China (NSFC)] ; [Yunnan Science Foundation of China] ; [Talent Project of Western Light of Chinese Academy of Sciences] ; [National Basic Research Program of China (973 program)] ; [Key Laboratory of Solar Activity of CAS] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/57728]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院国家天文台 2.中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Yan XiaoLi,Xue ZhiKe,Xiang YongYuan,et al. Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(10):1725. |
| APA | Yan XiaoLi,Xue ZhiKe,Xiang YongYuan,&Yang LiHeng.(2015).Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(10),1725. |
| MLA | Yan XiaoLi,et al."Fine-scale structures and material flows of quiescent filaments observed by the New Vacuum Solar Telescope".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.10(2015):1725. |
入库方式： OAI收割
来源：国家天文台
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