Eruption of the magnetic flux rope in a quick decaying active region
文献类型：期刊论文
| 作者 | Yang, Shangbin1 ; Xie, Wenbin1,2; Liu, Jihong1,3
|
| 刊名 | ADVANCES IN SPACE RESEARCH
 |
| 出版日期 | 2015-03-15 |
| 卷号 | 55期号:6页码:1553-1562 |
| 关键词 | Sun Magnetic helicity CMEs Filament eruption |
| 英文摘要 | An isolated and quickly decaying active region (NOAA 9729) was observed as it passed across the solar disk. There was only one CME associated with the active region, which provides a good opportunity to investigate the whole process of the CME. A filament in this active region was observed to rise rapidly before stalling and disintegrating into flare loops. The rising filament seen in EIT images separates into two parts just before eruption. A new filament reforms several hours later after the CME; the axis of this new filament is rotated clockwise approximately 22 compared with that of the first filament,due to a changed orientation of the polarity inversion line. We also observed a bright transient slightly S-shaped X-ray sigmoid, which appears immediately after the filament eruption. The X-ray sigmoid quickly develops into a soft X-ray cusp and rises before dropping back down. Two magnetic cancelation regions were observed clearly just before filament eruption. The eruption process of the sigmoid structure in this quick decaying active region could be explained by using the 3D Tether-Cutting model. The magnetic flux rope erupted as the magnetic helicity approached its maximum and the normalized helicity was -0.036 when the magnetic flux rope erupted, which is an order of magnitude smaller than the simulation results of the kink and torus instability, but is close to the predicted value of Zhang et al. (2008) based on the theoretical non-linear force-free model. (C) 2015 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350932100003 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5738]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 2.Jilin Normal Univ, Siping 136000, Jilin Province, Peoples R China 3.Shijiazhuang Univ, Shijiazhuang 050035, Hebei Province, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shangbin,Xie, Wenbin,Liu, Jihong. Eruption of the magnetic flux rope in a quick decaying active region[J]. ADVANCES IN SPACE RESEARCH,2015,55(6):1553-1562. |
| APA | Yang, Shangbin,Xie, Wenbin,&Liu, Jihong.(2015).Eruption of the magnetic flux rope in a quick decaying active region.ADVANCES IN SPACE RESEARCH,55(6),1553-1562. |
| MLA | Yang, Shangbin,et al."Eruption of the magnetic flux rope in a quick decaying active region".ADVANCES IN SPACE RESEARCH 55.6(2015):1553-1562. |
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。