Application of the MCMC algorithm on a disk galaxy generated with the AMR code RAMSES (Teyssier 2002) and “observed” with a seeing of 0.″8 (FWHM). The maximum S/N is ∼3 in the brightest pixel. The top, middle, and bottom rows show the flux map, the velocity map, and the apparent velocity profile V_z(r) across the major axis, respectively. From left to right, the panel columns show the data, the convolved model, the modeled disk (free from the PSF), and the high-S/N, high-resolution reference data (PSF = 0.″15 and S/N = 100). In the bottom panels, the solid red curves correspond to the reference case, the triangles represent the apparent rotation curve, and the dotted lines show the apparent maximum line-of-sight velocity ﹩{V}_{\mathrm{max}}\;\mathrm{sin}i﹩. One sees that the velocity profile from the modeled disk (third column) is in good agreement with the reference data (solid line) at 0.″15 resolution.