Numerical experiments on magnetic reconnection in solar flare and coronal mass ejection current sheets
文献类型：期刊论文
| 作者 | Mei ZX(梅志星)1,2 ; Shen CC(沈呈彩)1,2,3; Wu, N4; Lin J(林隽)1,3; Murphy, NA3; Ilia I. Roussev1,5
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2012-10 |
| 卷号 | 425期号:4页码:2824-2839 |
| 关键词 | instabilities magnetic reconnection shock waves turbulence Sun: coronal mass ejections (CMEs) Sun: flares |
| ISSN号 | 0035-8711 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Mei, Z (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Yunnan, Peoples R China. |
| 英文摘要 | Magnetic reconnection plays a critical role in energy conversion during solar eruptions. This paper presents a set of magnetohydrodynamic experiments for the magnetic reconnection process in a current sheet (CS) formed in the wake of the rising flux rope. The eruption results from the loss of equilibrium in a magnetic configuration that includes a current-carrying flux rope, representing a pre-existing filament. In order to study the fine structure and micro processes inside the CS, mesh refinement is used to reduce the numerical diffusion. We start with a uniform, explicitly defined resistivity which results in a Lundquist number S = 10(4) in the vicinity of CS. The use of mesh refinement allows the simulation to capture high-resolution features such as plasmoids from the tearing mode and plasmoid instability regions of turbulence and slow-mode shocks. Inside the CS, magnetic reconnection goes through the Sweet-Parker and the fractal stages, and eventually displays a time-dependent Petschek pattern. Our results support the concept of fractal reconnection suggested by Shibata et al. and Shibata & Tanuma, and also suggest that the CS evolves through Sweet-Parker reconnection prior to the fast reconnection stage. For the first time, the detailed features and/or fine structures inside the coronal mass ejection/flare CS in the eruption were investigated in this work. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | PLASMOID-INDUCED-RECONNECTION ; SUPRA-ARCADE DOWNFLOWS ; X-RAY ; CATASTROPHE MODEL ; TRANSPORT SCHEME ; ERUPTIVE FLARES ; FLUX-ROPE ; CME-FLARE ; SIMULATION ; FIELD |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/425/4/2824 |
| 语种 | 英语 |
| WOS记录号 | WOS:000318270500018 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6193]  |
| 专题 | 云南天文台_太阳物理研究组 |
| 作者单位 | 1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, PO Box 110, Kunming, Yunnan, 650011, China 2.Graduate School of the Chinese Academy of Sciences, Beijing, 100049, China 3.Harvard–Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA, 02138, USA 4.School of Tourism and Geography, Yunnan Normal University, Kunming, Yunnan, 650031, China 5.Institute for Astronomy, University of Hawaii, 2680 Woodlawn Dr, Honolulu, HI, 96822, USA |
| 推荐引用方式 GB/T 7714 | Mei ZX,Shen CC,Wu, N,et al. Numerical experiments on magnetic reconnection in solar flare and coronal mass ejection current sheets[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,425(4):2824-2839. |
| APA | Mei ZX,Shen CC,Wu, N,Lin J,Murphy, NA,&Ilia I. Roussev.(2012).Numerical experiments on magnetic reconnection in solar flare and coronal mass ejection current sheets.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,425(4),2824-2839. |
| MLA | Mei ZX,et al."Numerical experiments on magnetic reconnection in solar flare and coronal mass ejection current sheets".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 425.4(2012):2824-2839. |
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来源：云南天文台
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