THE ROLE OF ACTIVE REGION CORONAL MAGNETIC FIELD IN DETERMINING CORONAL MASS EJECTION PROPAGATION DIRECTION
文献类型：期刊论文
| 作者 | Wang, Rui; Liu, Ying D.; Dai, Xinghua; Yang, Zhongwei; Huang, Chong; Hu, Huidong |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015 |
| 卷号 | 814期号:1页码:80 |
| 关键词 | Sun: activity Sun: coronal mass ejections (CMEs) Sun: magnetic fields |
| ISSN号 | 0004-637X |
| 通讯作者 | Wang, R (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China. |
| 英文摘要 | We study the role of the coronal magnetic field configuration of an active region (AR) in determining the propagation direction of a coronal mass ejection (CME). The CME occurred in the AR 11944 (S09W01) near the disk center on 2014 January 7 and was associated with an X1.2 flare. A new CME reconstruction procedure based on a polarimetric technique is adopted, which shows that the CME changed its propagation direction by around 28 degrees in latitude within 2.5 R-circle dot and 43 degrees in longitude within 6.5 R-circle dot with respect to the CME source region. This significant non-radial motion is consistent with the finding of Mostl et al. We use nonlinear force-free field and potential field source surface extrapolation methods to determine the configurations of the coronal magnetic field. We also calculate the magnetic energy density distributions at different heights based on the extrapolations. Our results show that the AR coronal magnetic field has a strong influence on the CME propagation direction. This is consistent with the "channeling" by the AR coronal magnetic field itself, rather than deflection by nearby structures. These results indicate that the AR coronal magnetic field configuration has to be taken into account in order to determine CME propagation direction correctly. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-03-01 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5267]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Wang, Rui,Liu, Ying D.,Dai, Xinghua,et al. THE ROLE OF ACTIVE REGION CORONAL MAGNETIC FIELD IN DETERMINING CORONAL MASS EJECTION PROPAGATION DIRECTION[J]. ASTROPHYSICAL JOURNAL,2015,814(1):80. |
| APA | Wang, Rui,Liu, Ying D.,Dai, Xinghua,Yang, Zhongwei,Huang, Chong,&Hu, Huidong.(2015).THE ROLE OF ACTIVE REGION CORONAL MAGNETIC FIELD IN DETERMINING CORONAL MASS EJECTION PROPAGATION DIRECTION.ASTROPHYSICAL JOURNAL,814(1),80. |
| MLA | Wang, Rui,et al."THE ROLE OF ACTIVE REGION CORONAL MAGNETIC FIELD IN DETERMINING CORONAL MASS EJECTION PROPAGATION DIRECTION".ASTROPHYSICAL JOURNAL 814.1(2015):80. |
入库方式： OAI收割
来源：国家空间科学中心
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