Spectral line maps of the J = 14–13 up to J = 35–34 CO transitions around SMM3. All CO line maps presented show emission extending to the NNW and SSE from the exciting source near the center of each panel with a strong peak towards the NW. The CO J = 23–22 transition is blended with the stronger H₂O(4₁₄–3₀₃) line and is therefore presented in Fig. 8. The enhancement in the J = 31–30 map is due to blending with the OH (3/2–3/2, 7/2⁺–5/2⁻) line. A 4.5 μm Spitzer/IRAC image is presented as background on the upper left panel; bright regions correspond to H₂ emission, which is spatially coincident with the CO peak. The filled circle and arrows in the lower-right panel display the position of the source (Harvey et al. 2007) and the direction of the outflows (Dionatos et al. 2010b). Contour levels are from 10^-14 erg cm^-2 s^-1 and increase by steps of 10^-14 erg cm^-2 s^-1 (~3-sigma of the weakest transitions).