Moment maps of CO J = 2–1. Left: integrated intensity map with contours at 1,2,4,8,16,32 × 4.5 Jy beam^-1 km s^-1. Center: mean velocity map with contours at −100,−50,0,50,100 km s^-1. Right: dispersion map with contours at 20,40,60,80 km s^-1. The small box in each of the maps indicate the location of an extra emission component close to the systemic velocity. The fitted beam (1.34″ × 0.94″, PA ~ −86°) is shown in the lower left corner of each panel.