Evolution of Wake Instabilities and the Acceleration of the Slow Solar Wind: Melon Seed and Expansion Effects

摘要

We extend previous 2D simulation studies of slow solar wind acceleration due to the nonlinear evolution of the instability of the plasma/current sheet above streamers. We include the effects of the melon-seed force due to the overall magnetic field radial gradients on the plasmoid formed by the instability, as well as the subsequent expansion effects using the Expanding Box Model.