Super-elastic collision of large-scale magnetized plasmoids in the heliosphere
文献类型：期刊论文
| 作者 | Shen, Chenglong; Wang, Yuming; Wang, Shui; Liu, Ying; Liu, Rui; Vourlidas, Angelos; Miao, Bin; Ye, Pinzhong; Liu, Jiajia; Zhou, Zhenjun |
| 刊名 | NATURE PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 8期号:12页码:923-928 |
| ISSN号 | 1745-2473 |
| 通讯作者 | Wang, YM (reprint author), Univ Sci & Technol China, Dept Geophys & Planetary Sci, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China. |
| 中文摘要 | A super-elastic collision is an unusual process in which some mechanism causes the kinetic energy of the system to increase. Most studies have focused on solid-like objects, and have rarely considered gases or liquids, as the collision of these is primarily a mixing process. However, magnetized plasmoids are different from ordinary gases-as cross-field diffusion is effectively prohibited-but it remains unclear how they behave during a collision. Here we present a comprehensive picture of a unique collision between two coronal mass ejections in the heliosphere, which are the largest magnetized plasmoids erupting from the Sun. Our analysis reveals that these two magnetized plasmoids collided as if they were solid-like objects, with a likelihood of 73% that the collision was super-elastic. The total kinetic energy of the plasmoid system increased by about 6.6% through the collision, significantly influencing its dynamics. |
| 英文摘要 | A super-elastic collision is an unusual process in which some mechanism causes the kinetic energy of the system to increase. Most studies have focused on solid-like objects, and have rarely considered gases or liquids, as the collision of these is primarily a mixing process. However, magnetized plasmoids are different from ordinary gases-as cross-field diffusion is effectively prohibited-but it remains unclear how they behave during a collision. Here we present a comprehensive picture of a unique collision between two coronal mass ejections in the heliosphere, which are the largest magnetized plasmoids erupting from the Sun. Our analysis reveals that these two magnetized plasmoids collided as if they were solid-like objects, with a likelihood of 73% that the collision was super-elastic. The total kinetic energy of the plasmoid system increased by about 6.6% through the collision, significantly influencing its dynamics. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | 973 key project [2011CB811403]; NSFC [41131065, 40904046, 40874075, 41121003]; CAS [KZCX2-YW-QN511]; MOEC [20113402110001]; 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/122/3173]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Shen, Chenglong,Wang, Yuming,Wang, Shui,et al. Super-elastic collision of large-scale magnetized plasmoids in the heliosphere[J]. NATURE PHYSICS,2012,8(12):923-928. |
| APA | Shen, Chenglong.,Wang, Yuming.,Wang, Shui.,Liu, Ying.,Liu, Rui.,...&Zhou, Zhenjun.(2012).Super-elastic collision of large-scale magnetized plasmoids in the heliosphere.NATURE PHYSICS,8(12),923-928. |
| MLA | Shen, Chenglong,et al."Super-elastic collision of large-scale magnetized plasmoids in the heliosphere".NATURE PHYSICS 8.12(2012):923-928. |
入库方式： OAI收割
来源：国家空间科学中心
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