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Numerical experiments of disturbance to the solar atmosphere caused by eruptions
Mei ZX(梅志星)1,2; Udo, Z3; Lin J(林隽)1,4; Mei, ZX (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2012-07
卷号55期号:7页码:1316-1329
DOI10.1007/s11433-012-4752-3
分类号P182
产权排序第1完成单位
收录类别SCI ; EI
关键词Sun: Coronal Mass Ejections Sun: Flares Sun: Magnetic Fields Plasmas: Mhd Waves Plasma: Shock Waves
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.
项目资助者National Basic Research Program of China [2011CB811403] ; National Natural Science Foundation of China [10873030] ; Chinese Academy of Sciences [2009J2-34] ; CMA [GYHY201106011] ; NASA [NNX11AB61G] ; Smithsonian Institution Sprague Endowment Fund
语种英语
学科领域Physics
文章类型Article
ISSN1674-7348
URL查看原文
归档日期2012-05-25
WOS记录号WOS:000305419500028
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
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
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6200
专题太阳物理研究组
通讯作者Mei, ZX (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
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
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GB/T 7714
Mei ZX,Udo, Z,Lin J,et al. 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,&Mei, ZX .(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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