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Author(s):
H. Amo, T. Sato and A. Kageyama
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Title:
Intermittent Energy Bursts and Recurrent Topological Change of a Twisting Magnetic Flux Tube
Date of publication:
Sep.1994
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Key words:
twisting magnetic flux-tube, knot-of tension instability, driven magnetic reconnection, topological change, intermittent bursts, recurrence, self-organization
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Abstract:
When continuously twisted, a magnetic flux tube suffers a large kink distortion in the middle part of the tube, like a knot-of tension instability of a bundle of twisted rubber strings, and reconnection is triggered starting with the twisted field lines and quickly proceeding to the untwisted field lines at the twist-untwist boundary, whereby a giant burst-like energy release takes place. Subsequently, bursts occur intermittently and reconnection advances deeper into the untwisted region. Then, a companion pair of the linked twist-untwist flux tubes reconnect with each other to return to the original axisymmetric tube. The process is thus repeatable.
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