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【期刊论文】SIMULATION OF MAGNETIC RECONNECTION WITH HEAT CONDUCTION
陈鹏飞, P. F. CHEN, C. FANG, Y. H. TANG, AND M. D. DING
THE ASTROPHYSICAL JOURNAL, 513: 516-523, 1999 ,-0001,():
-1年11月30日
Magnetohydrodynamic (MHD) equations are numerically solved to study 2.5-dimensional magnetic reconnection with field-aligned heat conduction, which is also compared with the adiabatic case. The dynamical evolution starts after anomalous resistivity is introduced into a hydrostatic solar atmosphere with a force-free current sheet, which might be similar to the configuration before some solar flares. The results show that two jets (i.e., the outflows of the reconnection region) appear. The downward jet col-lides with the closed line-tied
conduction-MHD-Sun: magnetic fields
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陈鹏飞, Peng-Fei Chen*, Cheng Fang and Ming-De Ding
Chin. J. Astron. Astrophys. Vol. 1, No.2, (2001) 176-184,-0001,():
-1年11月30日
Ellerman bombs and Type II white-light flares share many common features despite the large energy gap between them. Both are considered to result from local heating in the solar lower atmosphere. This paper presents numerical simulations of magnetic reconnection occurring in such a deep atmosphere, with the aim to account for the common features of the two phenomena. Our numerical results manifest the following two typical characteristics of the assumed reconnection process: (1) magnetic reconnection saturates in ~600-900 s, which is just the lifetime of the two phenomena; (2) ionization in the upper chromosphere consumes quite a large part of the energy released through reconnection, making the heating effect most significant in the lower chromosphere. The application of the reconnection model to the two phenomena is discussed in detail.
Sun, atmosphere Sun, flares Sun, magnetic fields
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