UNCOVERING THE WAVE NATURE OF THE EIT WAVE FOR THE 2010 JANUARY 17 EVENT THROUGH ITS CORRELATION TO THE BACKGROUND MAGNETOSONIC SPEED
文献类型：期刊论文
| 作者 | Zhao, X. H.; Wu, S. T.; Wang, A. H.; Vourlidas, A.; Feng, X. S.; Jiang, C. W. |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2011 |
| 卷号 | 742期号:2页码:131 |
| 关键词 | shock waves Sun: coronal mass ejections (CMEs) Sun: UV radiation |
| ISSN号 | 0004-637X |
| 通讯作者 | Zhao, XH (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Sate Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China. |
| 中文摘要 | An EIT wave, which typically appears as a diffuse brightening that propagates across the solar disk, is one of the major discoveries of the Extreme ultraviolet Imaging Telescope on board the Solar and Heliospheric Observatory. However, the physical nature of the so-called EIT wave continues to be debated. In order to understand the relationship between an EIT wave and its associated coronal wave front, we investigate the morphology and kinematics of the coronal mass ejection (CME)-EIT wave event that occurred on 2010 January 17. Using the observations of the SECCHI EUVI, COR1, and COR2 instruments on board the Solar Terrestrial Relations Observation-B, we track the shape and movements of the CME fronts along different radial directions to a distance of about 15 solar radii (R-s); for the EIT wave, we determine the propagation of the wave front on the solar surface along different propagating paths. The relation between the EIT wave speed, the CME speed, and the local fast-mode characteristic speed is also investigated. Our results demonstrate that the propagation of the CME front is much faster than that of the EIT wave on the solar surface, and that both the CME front and the EIT wave propagate faster than the fast-mode speed in their local environments. Specifically, we show a significant positive correlation between the EIT wave speed and the local fast-mode wave speed in the propagation paths of the EIT wave. Our findings support that the EIT wave under study is a fast-mode magnetohydrodynamic wave. |
| 英文摘要 | An EIT wave, which typically appears as a diffuse brightening that propagates across the solar disk, is one of the major discoveries of the Extreme ultraviolet Imaging Telescope on board the Solar and Heliospheric Observatory. However, the physical nature of the so-called EIT wave continues to be debated. In order to understand the relationship between an EIT wave and its associated coronal wave front, we investigate the morphology and kinematics of the coronal mass ejection (CME)-EIT wave event that occurred on 2010 January 17. Using the observations of the SECCHI EUVI, COR1, and COR2 instruments on board the Solar Terrestrial Relations Observation-B, we track the shape and movements of the CME fronts along different radial directions to a distance of about 15 solar radii (R-s); for the EIT wave, we determine the propagation of the wave front on the solar surface along different propagating paths. The relation between the EIT wave speed, the CME speed, and the local fast-mode characteristic speed is also investigated. Our results demonstrate that the propagation of the CME front is much faster than that of the EIT wave on the solar surface, and that both the CME front and the EIT wave propagate faster than the fast-mode speed in their local environments. Specifically, we show a significant positive correlation between the EIT wave speed and the local fast-mode wave speed in the propagation paths of the EIT wave. Our findings support that the EIT wave under study is a fast-mode magnetohydrodynamic wave. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation [ATM 0754378]; Air Force Office of Scientific Research [FA9550-07-1-0468]; NASA/Marshall Space Flight Center [NNM05AA22A]; National Natural Science Foundation of China [41031066, 40921063, 40874091, 40890162, 40904050, 40874077, 41074121, 41074122]; Specialized Research Fund for State Key Laboratories; Chinese Academy of Sciences |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3082]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Zhao, X. H.,Wu, S. T.,Wang, A. H.,et al. UNCOVERING THE WAVE NATURE OF THE EIT WAVE FOR THE 2010 JANUARY 17 EVENT THROUGH ITS CORRELATION TO THE BACKGROUND MAGNETOSONIC SPEED[J]. ASTROPHYSICAL JOURNAL,2011,742(2):131. |
| APA | Zhao, X. H.,Wu, S. T.,Wang, A. H.,Vourlidas, A.,Feng, X. S.,&Jiang, C. W..(2011).UNCOVERING THE WAVE NATURE OF THE EIT WAVE FOR THE 2010 JANUARY 17 EVENT THROUGH ITS CORRELATION TO THE BACKGROUND MAGNETOSONIC SPEED.ASTROPHYSICAL JOURNAL,742(2),131. |
| MLA | Zhao, X. H.,et al."UNCOVERING THE WAVE NATURE OF THE EIT WAVE FOR THE 2010 JANUARY 17 EVENT THROUGH ITS CORRELATION TO THE BACKGROUND MAGNETOSONIC SPEED".ASTROPHYSICAL JOURNAL 742.2(2011):131. |
入库方式： OAI收割
来源：国家空间科学中心
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