Time evolution of the radial density profile, plotted as slices at the azimuth of the density maximum where the vortex eye lies (top) and its radial opposite (bottom). The slices correspond to the y = 0 axis in Fig. 3, with x > 0 (top) and x < 0 (bottom), respectively. After ~40 orbital periods, the disk has practically reached a stationary state. The cavity profile itself has become uneven, showing a non-zero eccentricity.