Selected channel maps from the 3986 × 3836 resolution data cube of UGCA 105 (greyscale and blue contours) in comparison with the corresponding channel maps of the TiRiFiC model including both vertical velocity gradients DVRO, DVRA but no onset heights ZDRO, ZDRA (as shown in panel g) of Fig. 7; black contours) and of our best-fit TiRiFiC model (as shown in Fig. 11 and panel h) of Fig. 7; pink contours). Contour levels are 0.9 (2σ), 3.6, and 14.4 mJy beam^-1. The heliocentric velocity is noted at the upper left corner of each map.