RADIAL FLOW PATTERN OF A SLOW CORONAL MASS EJECTION
文献类型：期刊论文
| 作者 | Feng, Li1,2 ; Inhester, Bernd2; Gan, Weiqun1
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015-06-01 |
| 卷号 | 805期号:2页码:113 |
| 关键词 | hydrodynamics Sun: coronal mass ejections (CMEs) Sun: evolution |
| 英文摘要 | Height-time plots of the leading edge of coronal mass ejections (CMEs) have often been used to study CME kinematics. We propose a new method to analyze the CME kinematics in more detail by determining the radial mass transport process throughout the entire CME. Thus, our method is able to estimate not only the speed of the CME front but also the radial flow speed inside the CME. We have applied this method to a slow CME with an average leading edge speed of about 480 km s(-1). In the Lagrangian frame, the speeds of the individual CME mass elements stay almost constant within 2 and 15 R-S, the range over which we analyzed the CME. Hence, we have no evidence of net radial forces acting on parts of the CME in this range or of a pile up of mass ahead of the CME. We find evidence that the leading edge trajectory obtained by tie-pointing may gradually lag behind the Lagrangian front-side trajectories derived from our analysis. Our results also allow a much more precise estimate of the CME energy. Compared with conventional estimates using the CME total mass and leading edge motion, we find that the latter may overestimate the kinetic energy and the gravitational potential energy. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 天文和天体物理 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | STEREO |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000356715400028 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/14830]  |
| 专题 | 紫金山天文台_太阳高能及相关物理过程研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 2.Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany |
| 推荐引用方式 GB/T 7714 | Feng, Li,Inhester, Bernd,Gan, Weiqun. RADIAL FLOW PATTERN OF A SLOW CORONAL MASS EJECTION[J]. ASTROPHYSICAL JOURNAL,2015,805(2):113. |
| APA | Feng, Li,Inhester, Bernd,&Gan, Weiqun.(2015).RADIAL FLOW PATTERN OF A SLOW CORONAL MASS EJECTION.ASTROPHYSICAL JOURNAL,805(2),113. |
| MLA | Feng, Li,et al."RADIAL FLOW PATTERN OF A SLOW CORONAL MASS EJECTION".ASTROPHYSICAL JOURNAL 805.2(2015):113. |
入库方式： OAI收割
来源：紫金山天文台
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。