Numerical experiments of disturbance to the solar atmosphere caused by eruptions
文献类型：期刊论文
| 作者 | Mei ZX(梅志星)1,2 ; Udo, Z3; Lin J(林隽)1,4
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| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| 出版日期 | 2012-07 |
| 卷号 | 55期号:7页码:1316-1329 |
| 关键词 | sun: coronal mass ejections sun: flares sun: magnetic fields plasmas: MHD waves plasma: shock waves |
| ISSN号 | 1674-7348 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Mei, ZX (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China. |
| 英文摘要 | Despite extensive research on various global waves in solar eruptions, debate continues on the intrinsic nature of them. In this work, we performed numerical experiments of the coronal mass ejection with emphases on the associated large-scale MHD waves. A fast-mode shock forms in front of the flux rope during the eruption with a dimming region following it, and the development of a three-component structure of the ejecta is observed. At the flank of the flux rope, the slow-mode shock and the velocity vortices are also invoked. The dependence of the eruption energetics on the strength of the background field and the coronal plasma density distribution is apparent: the stronger the background field is, and/or the lower the coronal plasma density is, the more energetic the eruption is. In the lower Alfv,n speed environment, the slow mode shock and the large scale velocity vortices may be the source of the EIT wave. In the high Alfv,n speed environment, on the other hand, the echo due to the reflection of the fast shock on the bottom boundary could be so strong that its interaction with the slow mode shock and the velocity vortices produces the second echo propagating downward and causing the secondary disturbance to the boundary surface. We suggest that this second echo, together with the slow shock and the velocity vortices, could constitute a possible candidate of the source for the EIT wave. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 分类号 | P182 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | CORONAL MASS EJECTIONS ; ULTRAVIOLET IMAGING TELESCOPE ; X-RAY OBSERVATIONS ; II RADIO-BURSTS ; EIT WAVES ; MORETON WAVE ; MAGNETIC RECONNECTION ; CATASTROPHE MODEL ; TRANSPORT SCHEME ; FLARE WAVES |
| 收录类别 | SCI ; EI |
| 原文出处 | http://link.springer.com/article/10.1007%2Fs11433-012-4752-3 |
| 语种 | 英语 |
| WOS记录号 | WOS:000305419500028 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6200]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, P. O. Box 110, Kunming, 650011, China 2.Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China 3.Leibniz-Institut füer Astrophysik Potsdam, Potsdam, D-14482, Germany 4.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, 02138, USA |
| 推荐引用方式 GB/T 7714 | Mei ZX,Udo, Z,Lin J. Numerical experiments of disturbance to the solar atmosphere caused by eruptions[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(7):1316-1329. |
| APA | Mei ZX,Udo, Z,&Lin J.(2012).Numerical experiments of disturbance to the solar atmosphere caused by eruptions.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(7),1316-1329. |
| MLA | Mei ZX,et al."Numerical experiments of disturbance to the solar atmosphere caused by eruptions".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.7(2012):1316-1329. |
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来源：云南天文台
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