The sky field around the position of B0212+735, as in Fig. 2. Contours in the CO emission map at lower left are color coded in blue for emission at  −15 ≤ v ≤  −9.5 km s^-1 and in green for emission at  −2 ≤ v ≤ 1 km s^-1. The gray scale background represents the integrated emission of the strongest emission component seen toward the continuum source, at v = 1.5−5 km s^-1. ¹²CO spectra at two locations labeled A and B are shown at upper right along with a strongly-scaled mean profile taken over the full map area.