3-D MHD simulation of the generation of a shell current loop with closure current |
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| Authors: | Jun-Ichi Sakai Toshiaki Fushiki |
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| Institution: | (1) Laboratory for Plasma Astrophysics and Fusion Science, Department of Electronics and Information, Faculty of Engineering, Toyama University, 3190 Gofuku, 930 Toyama, Japan;(2) Hokuden Information System Service, 3-1, Sakurabashi, 930 Toyama, Japan |
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| Abstract: | We present results for the generation process of a shell current loop by using a three-dimensional ideal MHD code. It is shown that a shell current loop with a diffuse closure current can be generated due to the twisting motions of the loop footpoints. It is also shown that during the generation of a shell current loop, plasma density enhancement propagates along a shell current loop. It is suggested that the generation process of a shell current loop may be related to the movement of soft X-ray enhancement from the footpoints along a loop before onset of a solar flare. |
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