Numerical simulation of mass injection for the formation of prominence magnetic field configurations. I - Asymmetric injection

A two-dimensional ideal MHD numerical model is used to investigate chromospheric mass injection into an overlying coronal dipole magnetic field. Such injection is shown to produce magnetic field deformations conducive to the formation of active region prominences. The results support a model in which an absorptive strand is formed by chromospheric asymmetric mass injection into the overlying coronal magnetic field. A necessary condition for the accumulation of the strands is that the mass injection forms a Kippenhahn-Schluter-type (1957) field configuration.