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Catastrophe versus instability for the eruption of a toroidal solar magnetic flux rope View all abstracts by submitter

Bernhard Kliem   Submitted: 2014-07-11 09:04

The onset of a solar eruption is formulated here as either a magnetic catastrophe or as an instability. Both start with the same equation of force balance governing the underlying equilibria. Using a toroidal flux rope in an external bipolar or quadrupolar field as a model for the current-carrying flux, we demonstrate the occurrence of a fold catastrophe by loss of equilibrium for several representative evolutionary sequences in the stable domain of parameter space. We verify that this catastrophe and the torus instability occur at the same point; they are thus equivalent descriptions for the onset condition of solar eruptions.

Authors: B. Kliem, J. Lin, T. G. Forbes, E. R. Priest, & T. Török
Projects: None

Publication Status: Published in ApJ 789, 46, 2014
Last Modified: 2014-07-11 14:33
Go to main E-Print page  Slow Rise and Partial Eruption of a Double-Decker Filament. II. A Double Flux Rope Model  Magnetohydrodynamic Modeling of the Solar Eruption on 2010 April 8  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

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