On the Influence of Screening Currents on MHD Stability of Magnetic Flux Ropes in the Solar Corona

Abstract

Based on the energy method under the solar coronal conditions the MHD stability of neutralized current ropes is considered. It has been sown that the surface screening currents provide the stability of a current rope with respect to kink perturbations. The azimuth magnetic field can significantly exceed the longitudinal one in coronal magnetic flux ropes.