The sky field around the position of B0224+671, much as in Fig. 2. The map at lower left has been integrated over the very wide interval  −15.5 ≤ v ≤  +2 km s^-1. Shown in the middle panel at right are the CO emission spectrum toward B0224+671 and as averaged over the region of the entire CO emission map. At top right are example profiles from the positions labeled at lower left, chosen from maps of integrated intensity over narrow intervals increasing in velocity from a) − g).