Distribution of tangential velocities v_t (in units of 100 km s^-1) of old stars for six minor mergers. For each encounter a pair of panels is shown, with stars originally in the primary disk (left) and those accreted from the satellite (right). In each panel the histograms correspond to different heights above and below the galaxy midplane: |z|    ≤ 1 kpc (black), 1    <    |z|    ≤    3 kpc (blue), 3    <    |z|    ≤    5 kpc (green) and 5    <    |z|    ≤    10 kpc (orange). The average values of v_t in the different regions is also indicated.