LTE results derived combining SSW SPIRE and PACS spectra. Top: distribution of the excitation temperature (T_ex, top left) and column density (N_CO, top right) derived applying MADCUBA to the combined SSW SPIRE and PACS spectra. The FoV covered by 3 × 3 spaxels (∼1′ × 1′) is the same as that shown in Fig. 10. Bottom: observed (black) and simulated (blue) ¹²CO emission spectra from combining SSW SPIRE and PACS. The spaxels are identified using the same number used in the top panel. For spaxels #3 and #6 only SPIRE data are available while for spaxels #1, #5 (central), and #8 SSW SPIRE and PACS data are combined together. The ¹²CO emission is found in the inner region (3 × 3 spaxels) and mainly located in the disk, with some contribution in the perpendicular direction.