The rotation curves of the initial model and of models 1-9 after the merger are shown in Fig. 7 . Velocities for particles initially belonging to each of the Galaxian components are shown with different symbols. For the post-merger rotation curves, bulge and satellite particles have been grouped together for clarity. The faster rotation of the model with the largest bulge reflects not only the contribution of the massive bulge to the gravitational potential but also the intrinsic fast rotation of the bulge. The difference is due to the differences in the density profile of bulge and satellite.
Smaller satellites have overall lower effect on the total potential.
The counterrotation of the final bulge is common to all our retrograde mergers.