5.5 Numerical stability investigations

Török and Kliem (2005Jump To The Next Citation Point) investigated the stability of the nonlinear force-free Titov–Démoulin equilibrium numerically with the help of a time-dependent MHD code. Figure 9View Image shows snapshots from MHD simulation starting from in an unstable branch of the Titov–Démoulin equilibrium in comparison with a solar eruption observed with TRACE. The simulation shows a very good agreement with the observed eruptions and indicates that a helical kink instability can trigger coronal eruptions. Dependent on particular parameters of the original Titov–Démoulin equilibrium the eruption remains confined or leads to a coronal mass ejection (see Török and Kliem, 2005, for details).

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