Density in the V_Z ≡ vs. velocity map for several Galactocentric radial bins for the pP50 sample restricted around the AC (170° ≤l ≤ 190°). The two rows distinguish Z_Gal > 0 (above) from Z_Gal < 0 (below). All panels share both axes. The colour indicates stellar counts normalised to the densest bin of each panel in the sense that darker means denser. Bin sizes have been adapted to the number of stars of each panel (numbers shown at bottom right corners).