Beam convolved integrated emission of the CO isotopologues for the J = 3−2 and J = 6−5 transition shown along the cut through the major axis of the disk. The cuts are given for beam sizes of 0.25′′, 0.1′′, and 0.05′′. The 5σ detection limit within 1 h of the full ALMA using 50 12 m antennas is indicated by the horizontal grey line. Models with a surface density profile slope of γ = 0 (dashed line), γ = 1 (solid line), and γ = 2 (dotted line) are shown.