Zoom-in on the winding in the very center of the map. The analysis is conducted on N = 100 radii from R_min = 0 to R_max = 0.35 kpc. Top panel: V_min (blue), $V_{min}^{2\mathrm{nd}}$, and V_max velocities superposed on the kinematic map, together with the maximal velocity (red bullets), minimal velocity (blue triangle) and minimal velocity of the second component (green triangle), for each radii. Bottom panel: Corresponding velocity values as a function of the galactocentric radius. The negative radii correspond to the distance of the points in the southwest region.