Comparison between the ALMA observations (top row) and the ray-traced SPH simulations (bottom row). Panels from left toright: CO integrated intensity (moment 0) map, CO intensity weighted velocity field (moment 1) map, and the 1.4 mm dust emission map. The purple star represents the location of HD 100453 B in all panels. For the CO moment 1 map (middle panel) we only include emission that is within a certain fraction of the peak emission in the image channels. The maximum observed dynamic range in our observations is 40, and we construct the model moment 1 maps using only emission that is brighter than a fraction of 3/40 of the peak intensity. Top left and right panels: 2, 10 and 30 σ contours using yellow lines. For the bottom panels we use the dynamic range from the observations to approximate these contours as fraction of the maximum emission in the simulated maps.