Integrated line profile of the CO(1–0), CO(6–5), CO (12–11), and CO(15–14) transitions for the AGN torus simulation. The lines correspond to line profiles seen at different inclination angles, as the legend indicates. υ = 0 km s⁻¹ corresponds the rest wavelength of each line transition. The line profiles are observed by observers located at a fiducial distance of 4.2 Mpc with a beam size of (32 pc)².