Integrated intensity (zeroth moment) maps for ¹³CO (left panels) and C¹⁸O (right panels) in the warm (W; top row), intermediate (I; middle row) and cold (C; bottom row) model. Emission is simulated for a five hour integration using an ALMA configuration resulting in a similar beam size as the observations. The intensity (color) scale is different for each panel. The position of the continuum peak is marked by a black cross and the beam is shown in the lower left corner of the panels.