Prominence formation by levitation-condensation at extreme resolutions

Vol. 646
Sect. 9. The Sun and the Heliosphere

Prominence formation by levitation-condensation at extreme resolutions

The formation of a dynamical structure in emerging prominences subjected to footpoint shearing and cooling are simulated in the magnetohydrodynamic limit with extremely high spatial and time resolution using the Adaptive Mesh Refinement Versatile Advection Code (MPI-AMRVAC). The models include anisotropic thermal conduction and radiative losses to study the thermal stability of the structures. The interaction of the background field produces Joule heating and cooling, inducing a thermal instability that births small-scale condensations. The fine structure, the twisting and merging plasmoids, and the consequent magnetic and dynamical oscillations are displayed in time sequences that will be valuable for comparison with high time resolution observations.