Integrated velocity channel maps of the ¹²CO J = 3−2 emission. The integration velocity range is exhibited at the top of each panel. The gray scale goes from 2 Jy beam⁻¹ km s⁻¹ (about 3σ rms noise of an averaged channel map) to 10 Jy beam⁻¹ km s⁻¹. The green contours represent the continuum emission at 334 GHz; the levels are at 30, 200, and 400 mJy beam⁻¹. The dashed contour represents the 3σ rms noise level of the radio continuum emission at 93 GHz. The beam is indicated in the bottom right corner of each map.