Line-of-sight velocity map in the close vicinity of the planet (top). The observer is located in the –x and the star in the + x-direction. Overplotted streamlines illustrate the flow patterns and show the fallback of material on the planet’s night side. The white outline indicates the radius (r = 1.2 R_p) of the sphere whose projected surface is shown in the maps below. Due to the incident material, the pressure on the night side in model A_10% reaches only 40% instead of the expected 10% of the pressure on the day side in the evolved simulation.