Logarithmic normalized density (colormaps) showing the temporal evolution of an SDI simulation. The snapshots were taken after five, ten, 20, and 30 stellar rotation periods, P_*. The far-left panel illustrates the inner domain of this simulation, with the vertical white lines indicating the location of the truncation radius R_t (dashed black core) and corotation radius R_co (solid black core). Each plot includes magnetic field lines (white lines) and velocity-field vectors. The cyan lines delimit the stellar-wind flux tube, and the red lines mark the Alfvén surface.