Selection of channel maps from the RT model for the inclination i = 0° (top panels) and i = 30° (bottom panels), after smoothing the synthetic image from MCFOST using a circular Gaussian beam with Δx = 0.05″ and Δv = 0.05 kms⁻¹. The velocity of each channel is marked in the top left corner of each panel. The grey circle in the bottom left corner represents the corresponding beam size.