中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Could the collision of CMEs in the heliosphere be super‒elastic? Validation through three‒dimensional simulations

文献类型:期刊论文

作者Fang Shen ; Chenglong Shen ; Yuming Wang ; Xueshang Feng ; Changqing Xiang
刊名Geophysical Research Letters
出版日期2013
卷号40期号:8页码:1457-1461
关键词Coronal mass ejection Interaction MHD simulation Super-elastic collision
ISSN号1944-8007
通讯作者北京8701信箱
中文摘要Though coronal mass ejections (CMEs) are magnetized fully ionized gases, a recent observational study of a CME collision event in 2008 November has suggested that their behavior in the heliosphere is like elastic balls, and their collision is probably superelastic [C. Shen et al., 2012]. If this is true, this finding has an obvious impact on the space weather forecasting because the direction and velocity of CMEs may change. To verify it, we numerically study the event through three‒dimensional MHD simulations. The nature of CMEs' collision is examined by comparing two cases. In one case, the two CMEs collide as observed, but in the other, they do not. Results show that the collision leads to extra kinetic energy gain by 3–4% of the initial kinetic energy of the two CMEs. It firmly proves that the collision of CMEs could be superelastic.
学科主题空间物理
语种英语
源URL[http://ir.cssar.ac.cn/handle/122/1537]  
专题国家空间科学中心_空间科学部
推荐引用方式
GB/T 7714
Fang Shen,Chenglong Shen,Yuming Wang,et al. Could the collision of CMEs in the heliosphere be super‒elastic? Validation through three‒dimensional simulations[J]. Geophysical Research Letters,2013,40(8):1457-1461.
APA Fang Shen,Chenglong Shen,Yuming Wang,Xueshang Feng,&Changqing Xiang.(2013).Could the collision of CMEs in the heliosphere be super‒elastic? Validation through three‒dimensional simulations.Geophysical Research Letters,40(8),1457-1461.
MLA Fang Shen,et al."Could the collision of CMEs in the heliosphere be super‒elastic? Validation through three‒dimensional simulations".Geophysical Research Letters 40.8(2013):1457-1461.

入库方式: OAI收割

来源:国家空间科学中心

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