DARK RIBBONS PROPAGATING AND SWEEPING ACROSS EXTREME ULTRAVIOLET STRUCTURES AFTER FILAMENT ERUPTIONS
文献类型：期刊论文
| 作者 | Xiao, Junmin ; Zhang, Jun; Li, Ting; Yang, Shuhong; Xiao,Junmin; Yang,Shuhong; Li,Ting; Zhang,Jun
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-05-20 |
| 卷号 | 805期号:1 |
| 关键词 | Sun: activity Sun: corona Sun: filaments, prominences Sun: flares |
| 英文摘要 | With observations from the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory, we first report that dark ribbons (DRs) moved apart from the filament channel and swept across EUV structures after filament eruptions on 2013 June 23 and 2012 February 10 and 24, respectively. In the first event, the DR with a length of 168Mm appeared at 100Mm to the northwest of the filament channel, where the filament erupted 15 hr previously. The DR moved toward the northwest with the different sections having different velocities, ranging from 0.3 to 1.6 km s(-1). When the DR's middle part swept across a strong EUV structure, the motion of this part was blocked, appearing to deflect the DR. With the DR propagation, the connection of the surrounding EUV structures gradually changed. After one day passed, the DR eventually disappeared. In the other two events, the dynamic evolution of the DRs was similar to that in the first event. Based on the observations, we speculate that the reconnection during the filament eruption changes the configuration of the surrounding magnetic fields systematically. During the reconnection process, magnetic fields are deflecting and the former arbitrarily distributed magnetic fields are rearranged along specific directions. The deflection of magnetic fields results in an instantaneous void region where the magnetic strength is smaller and the plasma density is lower. Consequently, the void region is observed as a DR and propagates outward with the reconnection developing. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000354991300025 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5680]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Junmin,Zhang, Jun,Li, Ting,et al. DARK RIBBONS PROPAGATING AND SWEEPING ACROSS EXTREME ULTRAVIOLET STRUCTURES AFTER FILAMENT ERUPTIONS[J]. ASTROPHYSICAL JOURNAL,2015,805(1). |
| APA | Xiao, Junmin.,Zhang, Jun.,Li, Ting.,Yang, Shuhong.,Xiao,Junmin.,...&Zhang,Jun.(2015).DARK RIBBONS PROPAGATING AND SWEEPING ACROSS EXTREME ULTRAVIOLET STRUCTURES AFTER FILAMENT ERUPTIONS.ASTROPHYSICAL JOURNAL,805(1). |
| MLA | Xiao, Junmin,et al."DARK RIBBONS PROPAGATING AND SWEEPING ACROSS EXTREME ULTRAVIOLET STRUCTURES AFTER FILAMENT ERUPTIONS".ASTROPHYSICAL JOURNAL 805.1(2015). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。