Evolution of coronal mass ejections in the early stage
文献类型：期刊论文
| 作者 | Bao, Xingming1; Zhang, Hongqi1 ; Lin, Jun2,3; Jiang, Yunchun2; Li, Leping2
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| 刊名 | ADVANCES IN SPACE RESEARCH
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| 出版日期 | 2007 |
| 卷号 | 39期号:12页码:1847-1852 |
| 关键词 | coronal mass ejections flare filament eruption |
| 英文摘要 | This work reports the investigation of two coronal mass ejections (CME) observed in white light, H alpha, EUV and X-ray by various instruments both in space and on ground on February 18, 2003 and January 19, 2005, respectively. The white light coronal images show that the first CME began with the rarefaction of a region above the solar limb and was followed by the formation of its leading edge at the boundary of the rarefying region at altitude of 0.46 R-circle dot from the solar surface. The rarefaction coincided the slow rising phase of the filament eruption, and the CME leading edge was observed to form as the filament eruption started to accelerate apparently. In the early stage of the second CME, a bright loop was first observed above the solar limb with height of 0.37 R-circle dot in EUV images. We found that the more gradual CMEs initial process, the larger the timing difference between CMEs and their associated flares. The lower part of the filament brightened in H alpha images as the filament rose to a certain height. These brightenings imply that the filament may be heated by magnetic reconnection below the filament in the early stage of the eruption. We suggest that the possible mechanism which led to the formation of the CME leading edge and cavity is magnetic reconnection which occurred under the filament when it reached a certain height. (c) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000253588900008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7323]  |
| 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 China, Beijing 100012, Peoples R China 2.Chinese Acad Sci, NAOC, Yunan Astron Observ, Kunming 650011, Yunnan, Peoples R China 3.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA |
| 推荐引用方式 GB/T 7714 | Bao, Xingming,Zhang, Hongqi,Lin, Jun,et al. Evolution of coronal mass ejections in the early stage[J]. ADVANCES IN SPACE RESEARCH,2007,39(12):1847-1852. |
| APA | Bao, Xingming,Zhang, Hongqi,Lin, Jun,Jiang, Yunchun,&Li, Leping.(2007).Evolution of coronal mass ejections in the early stage.ADVANCES IN SPACE RESEARCH,39(12),1847-1852. |
| MLA | Bao, Xingming,et al."Evolution of coronal mass ejections in the early stage".ADVANCES IN SPACE RESEARCH 39.12(2007):1847-1852. |
入库方式： OAI收割
来源：国家天文台
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