Possible two-step solar energy release mechanism due to turbulent magnetic reconnection
文献类型：期刊论文
| 作者 | Fan QL(范全林) ; Feng XS(冯学尚) ; Xiang ZQ(向长青) |
| 刊名 | Physics of Plasmas
 |
| 出版日期 | 2005 |
| 卷号 | 12期号:5页码:52901 |
| 关键词 | region explosive events filament eruption active region bright points cancellation simulations flux sun features flows |
| ISSN号 | 1070-664X |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | In this paper, a possible two-step solar magnetic energy release process attributed to turbulent magnetic reconnection is investigated by magnetohydrodynamic simulation for the purpose of accounting for the closely associated observational features including canceling magnetic features and different kinds of small-scale activities such as ultraviolet explosive events in the lower solar atmosphere. Numerical results based on realistic transition region physical parameters show that magnetic reconnections in a vertical turbulent current sheet consist of two stages, i.e., a first slow Sweet-Parker-like reconnection and a later rapid Petschek-like reconnection, where the latter fast reconnection phase seems a direct consequence of the initial slow reconnection phase when a critical state is reached. The formation of coherent plasmoid of various sizes and their coalescence play a central role in this complex nonlinear evolution. The "observed" values of the rate of cancellation flux as well as the approaching velocity of magnetic fragments of inverse polarity in present simulation are well consistent with the corresponding measurements in the latest observations. The difference between our turbulent magnetic reconnection two-step energy release model and other schematic two-step models is discussed and then possible application of present outcome to solar explosives is described. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 原文出处 | http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PHPAEN000012000005052901000001&idtype=cvips&prog=normal |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/1031]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Fan QL,Feng XS,Xiang ZQ. Possible two-step solar energy release mechanism due to turbulent magnetic reconnection[J]. Physics of Plasmas,2005,12(5):52901. |
| APA | 范全林,冯学尚,&向长青.(2005).Possible two-step solar energy release mechanism due to turbulent magnetic reconnection.Physics of Plasmas,12(5),52901. |
| MLA | 范全林,et al."Possible two-step solar energy release mechanism due to turbulent magnetic reconnection".Physics of Plasmas 12.5(2005):52901. |
入库方式： OAI收割
来源：国家空间科学中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。