Physics
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..369..421i&link_type=abstract
New Solar Physics with Solar-B Mission ASP Conference Series, Vol. 369, proceedings of the conference held 8-11 November, 2005 a
Physics
Scientific paper
We numerically investigated the three-dimensional (3D) stability and the nonlinear dynamics of flux tube embedded in magnetic arcade. As a results, we found that the flux tube is unstable to the kink mode instability, as the system approach to the loss-of-equilibrium state. The 3D simulation shows that when the flux tube is long enough, it can escape from arcade with almost constant speed after the accelerated launching due to the kink instability. In the case of the short flux tube, however, the flux tube ascending is failed at some height. The strong current sheet is formed in the lower part of the long flux tube at late phase as a consequence of the instability, whereas the current sheet can not be maintained in the case of short flux tube. Therefore, the formation of the current sheet at late phase may have some relation to the ejective eruption of the flux tube.
Inoue Susumu
Kusano Kanya
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