Distribution of the asymmetry A (red), concentration C (blue), and M₂₀ (green) values for the gaseous disk for 5 random inclinations in time intervals of 0.1 Gyr for the model-A dwarf during the minor merger shown in Fig. 1. These quantities have been normalised to their median (over all inclinations) initial value. The pericentre passages of the satellite are indicated by the black arrows.