Density distribution of the orbital plane (left panels zoom-in of middle panels) and meridional plane (right panels). From top to bottom: models S25FAST, S25SLOW, P90FAST and P25FAST. Left and right black dots represent the AGB star and companion, respectively, not to scale. Snapshot taken after 10 orbits when a = 25 au and after 5 when a = 90 au, at which self-similarity is reached.