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Numerical simulation of asymmetric corona with multi-streamer structures
Li, Jingqun; Wei, Fengsi; Feng, Xueshang
Department空间科学部
Source PublicationGeophysical Research Letters
2001
Volume28Issue:7Pages:1359-1362
ISSN0094-8276
Language英语
AbstractA new procedure is proposed to generate planar asymmetric coronas with multi-streamer structures, as shown in SOHO/LASCO observations. The initial coronal magnetic field is separated into potential part and non-potential part. We first fit the potential part by using the sum of magnetic multi-poles, whereas the non-potential part is approximated by the magnetic field induced by some properly fitted current densities. Then the total field is numerically modified in terms of Maxwell's equations. Based on the initial magnetic fields obtained in such a way, we can further compute various complex asymmetric corona structures by solving MHD equations. In order to verify this procedure, we compute the 2-D coronal structures prior to the December, 1996 CME and August, 1999 CME events. The numerical result is on the whole in agreement with observations, and hence set proper backgrounds for further studying the propagation of CME in various coronal structures using numerical computations. © Copyright 2001 by the American Geophysical Union.
Indexed ByEI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5290
Collection空间科学部
Recommended Citation
GB/T 7714
Li, Jingqun,Wei, Fengsi,Feng, Xueshang. Numerical simulation of asymmetric corona with multi-streamer structures[J]. Geophysical Research Letters,2001,28(7):1359-1362.
APA Li, Jingqun,Wei, Fengsi,&Feng, Xueshang.(2001).Numerical simulation of asymmetric corona with multi-streamer structures.Geophysical Research Letters,28(7),1359-1362.
MLA Li, Jingqun,et al."Numerical simulation of asymmetric corona with multi-streamer structures".Geophysical Research Letters 28.7(2001):1359-1362.
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