Modeling of a solar eruption and its relations with a solar wind

Abstract:

We investigate how a solar eruption is related to a solar wind which continuously exists during a pre-eruptive phase to form a helmet streamer on the Sun. To understand a mechanism of a solar eruption, we perform three-dimensional simulations based on zero-beta magnetohydrodyamic (MHD) equations. The pre-eruptive magnetic configuration in the simulations is given via nonlinear force-free field approximation applied to either a flux emergence simulation data or SDO/HMI data. On the basis of a simulation result, we discuss a dynamic relationship between a solar eruption and a solar wind, the latter of which may be a possible driver of a solar eruption.