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Quantitative Analysis of CME Deflections in the Corona
Gui, Bin; Shen, Chenglong; Wang, Yuming; Ye, Pinzhong; Liu, Jiajia; Wang, Shui; Zhao, Xuepu; Wang, YM (reprint author), Univ Sci & Technol China, CAS Key Lab Geospace Environm, Dept Geophys & Planetary Sci, Hefei 230026, Anhui, Peoples R China.
Department空间科学部
Source PublicationSOLAR PHYSICS
2011
Volume271Issue:1-2Pages:111-139
ISSN0038-0938
Language英语
KeywordCoronal Mass Ejections (Cme) Deflections Magnetic Energy Density
AbstractIn 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.; 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.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3277
Collection空间科学部
Corresponding AuthorWang, YM (reprint author), Univ Sci & Technol China, CAS Key Lab Geospace Environm, Dept Geophys & Planetary Sci, Hefei 230026, Anhui, Peoples R China.
Recommended Citation
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.,...&Wang, YM .(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.
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