Effect of mergers on the V_*/σ_*(R) profiles. A: major mergers. Median profiles for the FRs (top left) and the SRs (bottom left) in bins of accreted mass fraction from major mergers ΔM_*, major/M_*. The right panels show the median V_*/σ_*(R) for different Δ_{insitu, z ≤ 1} fractions and within a narrow range of ΔM_*, major/M_* fractions. Major mergers erase the peak in rotation and flatten the profiles. The presence of cold gas preserves or builds up the centrally rotating component. B: mini mergers. Median profiles for ETGs with negligible fraction of accreted mass from major, minor mergers, or stripped from surviving galaxies in bins of accreted mass fraction from mini mergers ΔM_*, mini/M_*. The left panel shows galaxies with Δ_{insitu, z ≤ 1} lower than the median Δ_{insitu, z = 0} = 0.61 for class 1 galaxies (i.e., with lower recent star formation), while the right panel shows those with Δ_{insitu, z ≤ 1} higher than the median. Mini mergers are not massive enough to modify the peak in rotation, but on average, and for low-mass systems, tend to increase the rotational support at large radii.