Updated maps of the bulge RV; colors and black contours show the RV profile fitted by the MCMC in steps of 10 km / s. The different marks are showing the different source of the measurement following the same description as in Fig. 1. The fiducial NSD iso-contour from Sormani et al. (2022) is shown as the white line representing where the NSD has a density of 6 × 10⁷ M_⊙ / deg². Left panel correspond to the new mean RV map, in comparison with the previous map, the differences are not stunning but expected. Right panel shows the map of the σ_RV, comparing with the previous map, the differences are clear near the galactic plane where new constraints were added. See figures in Appendix C for a more detailed comparison.