Main cooling sources throughout the disk: FUV luminosity increasing from L_FUV = 10²⁹ (left) to 10³² erg/s. X-ray luminosity increasing from L_x = 0 to 10³² erg/s. Lyman α cooling (black), [FeII] line cooling (blue-green), [OI] line cooling (white), [CII] line cooling (yellow), CO rotational and ro-vibrational cooling (red), H₂O rotational cooling (green-blue), OH rotational cooling (light green), HCN line cooling (dark purple), [CI] line cooling (light purple), HNC line cooling (blue), cooling by thermal accomodation on grains (dark blue), CS line cooling (yellow-green), H₂ line cooling (light blue), chemical cooling (red-orange), and free-free emission (green).