Quantitative Analysis of CME Deflections in the Corona
文献类型：期刊论文
| 作者 | Gui, Bin; Shen, Chenglong; Wang, Yuming; Ye, Pinzhong; Liu, Jiajia; Wang, Shui; Zhao, Xuepu |
| 刊名 | SOLAR PHYSICS
 |
| 出版日期 | 2011 |
| 卷号 | 271期号:1-2页码:111-139 |
| 关键词 | Coronal mass ejections (CME) Deflections Magnetic energy density |
| ISSN号 | 0038-0938 |
| 通讯作者 | Wang, YM (reprint author), Univ Sci & Technol China, CAS Key Lab Geospace Environm, Dept Geophys & Planetary Sci, Hefei 230026, Anhui, Peoples R China. |
| 中文摘要 | In this paper, ten CME events viewed by the STEREO twin spacecraft are analyzed to study the deflections of CMEs during their propagation in the corona. Based on the three-dimensional information of the CMEs derived by the graduated cylindrical shell (GCS) model (Thernisien, Howard, and Vourlidas in Astrophys. J. 652, 1305, 2006), it is found that the propagation directions of eight CMEs had changed. By applying the theoretical method proposed by Shen et al. (Solar Phys. 269, 389, 2011) to all the CMEs, we found that the deflections are consistent, in strength and direction, with the gradient of the magnetic energy density. There is a positive correlation between the deflection rate and the strength of the magnetic energy density gradient and a weak anti-correlation between the deflection rate and the CME speed. Our results suggest that the deflections of CMEs are mainly controlled by the background magnetic field and can be quantitatively described by the magnetic energy density gradient (MEDG) model. |
| 英文摘要 | In this paper, ten CME events viewed by the STEREO twin spacecraft are analyzed to study the deflections of CMEs during their propagation in the corona. Based on the three-dimensional information of the CMEs derived by the graduated cylindrical shell (GCS) model (Thernisien, Howard, and Vourlidas in Astrophys. J. 652, 1305, 2006), it is found that the propagation directions of eight CMEs had changed. By applying the theoretical method proposed by Shen et al. (Solar Phys. 269, 389, 2011) to all the CMEs, we found that the deflections are consistent, in strength and direction, with the gradient of the magnetic energy density. There is a positive correlation between the deflection rate and the strength of the magnetic energy density gradient and a weak anti-correlation between the deflection rate and the CME speed. Our results suggest that the deflections of CMEs are mainly controlled by the background magnetic field and can be quantitatively described by the magnetic energy density gradient (MEDG) model. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | 973 key projects [2011CB811403]; NSFC [40874075, 40904046]; FANEDD [200530]; CAS [KZCX2-YW-QN511]; fundamental research funds for the central universities |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3277]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Gui, Bin,Shen, Chenglong,Wang, Yuming,et al. Quantitative Analysis of CME Deflections in the Corona[J]. SOLAR PHYSICS,2011,271(1-2):111-139. |
| APA | Gui, Bin.,Shen, Chenglong.,Wang, Yuming.,Ye, Pinzhong.,Liu, Jiajia.,...&Zhao, Xuepu.(2011).Quantitative Analysis of CME Deflections in the Corona.SOLAR PHYSICS,271(1-2),111-139. |
| MLA | Gui, Bin,et al."Quantitative Analysis of CME Deflections in the Corona".SOLAR PHYSICS 271.1-2(2011):111-139. |
入库方式： OAI收割
来源：国家空间科学中心
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