Coronal mass ejections acceleration problem
文献类型：期刊论文
| 作者 | Wen, Yayuan1; Wang, Jingxiu1 ; Zhao, Hui1; Filipe Maia, Dalmiro Jorge2
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| 刊名 | ADVANCES IN SPACE RESEARCH
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| 出版日期 | 2008-09-01 |
| 卷号 | 42期号:5页码:852-857 |
| 关键词 | coronal mass ejections error estimates acceleration |
| 英文摘要 | A statistical study of acceleration and its error of coronal mass ejections (CMEs) observed by the Large Angle Spectrometric Coronagraph (LASCO) is performed. A total of 5594 CMEs events have been analyzed by using a least-square method and using the error in the height measures. We verify that slower CMEs (velocities in the interval from 200 to 500 kin s(-1)) tend to have a positive acceleration (about 1 m s(-2)) at heights above 5 solar radii, while less than 10%, CMEs show an average negative acceleration (about -2.2 M s(-2)) as they propagate from 5 to 30 solar radii. For most individual CMEs one can not say if they are accelerated or decelerated, only for 8% of all observed CMEs events one can extract the sign of the acceleration in the 5-30 solar radii. (C) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258049400008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7468]  |
| 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, Beijing 100012, Peoples R China 2.Univ Porto, Fac Ciencias, Observ Astron Prof Manuel Barros, CICGE, P-4430146 Vila Nova De Gaia, Portugal |
| 推荐引用方式 GB/T 7714 | Wen, Yayuan,Wang, Jingxiu,Zhao, Hui,et al. Coronal mass ejections acceleration problem[J]. ADVANCES IN SPACE RESEARCH,2008,42(5):852-857. |
| APA | Wen, Yayuan,Wang, Jingxiu,Zhao, Hui,&Filipe Maia, Dalmiro Jorge.(2008).Coronal mass ejections acceleration problem.ADVANCES IN SPACE RESEARCH,42(5),852-857. |
| MLA | Wen, Yayuan,et al."Coronal mass ejections acceleration problem".ADVANCES IN SPACE RESEARCH 42.5(2008):852-857. |
入库方式： OAI收割
来源：国家天文台
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