Rotation curves calculated for HZ10-C excluding the impact of the HZ10-E component. Data points correspond to the velocity centroids (left panel) and velocity dispersion (right panel) of a single Gaussian fit of the spectra within circular apertures of radius 0.13″ as a function of the relative aperture position. Apertures were placed along the major axis with a step of 0.13″. Zero velocity is calculated for the rest-frame [C II] frequency at z = 5.6548. Zero offset corresponds to the aperture position at the same zero point as for the respective PV diagram. Black curves represent the best-fit disk model done with DysmalPy. Normalized residuals represent the difference between data points and the model, divided by the data uncertainties. Note that we exclude the first aperture (top panel in Fig. B.2) as the emission in that region is dominated by the HZ10-E component.