Panel a: Density as shown in Fig. 1 as an orientation for the over plotted velocity vectors. The color-bar indicates the absolute value of the velocity of each vector in units of v_K(R_∗). Only the radial and polar component of the velocity vector have been taken into account. Panel b: Angular velocity Ω = u_ϕ/r (blue) and the radial velocity u_r (red) in the equatorial plane as a function of the radius r. The y-axis on the left-hand side refers to Ω and the y-axis on the right-hand side refers to u_r. All velocities are normalized to the Keplerian (angular) velocity at the surface of the star, . Both snapshots are taken after a time of 688 orbits.