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Numerical experiments on magnetic reconnection in solar flare and coronal mass ejection current sheets
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; Mei, Z (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2012-10
Volume425Issue:4Pages:2824-2839
DOI10.1111/j.1365-2966.2012.21625.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordInstabilities Magnetic Reconnection Shock Waves Turbulence Sun: Coronal Mass Ejections (Cmes) Sun: Flares
AbstractMagnetic 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.
Funding OrganizationProgram 973 grant [2011CB811403] ; NSFC [10873030] ; CAS [2011T2J01, 2010Y2JB16, KJCX2-EW-T07] ; NASA [NNX11AB61G] ; NSF SHINE grant [AGS-1156076]
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2012-10-07
WOS IDWOS:000318270500018
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordPLASMOID-INDUCED-RECONNECTION ; SUPRA-ARCADE DOWNFLOWS ; X-RAY ; CATASTROPHE MODEL ; TRANSPORT SCHEME ; ERUPTIVE FLARES ; FLUX-ROPE ; CME-FLARE ; SIMULATION ; FIELD
Citation statistics
Cited Times:40[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6193
Collection太阳物理研究组
Corresponding AuthorMei, Z (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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.,...&Mei, Z .(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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