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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Sakai, JI., Fushiki, T. 3-D MHD simulation of the generation of a shell current loop with closure current. Sol Phys 156, 281–292 (1995). https://doi.org/10.1007/BF00670228
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DOI: https://doi.org/10.1007/BF00670228