Color-scale first moment maps (intensity-weighted peak velocities) from the line at 232.693 GHz. Left panel: focus on mm1 and mm2. Right panel: mm12. The contours are the 1.3 mm continuum data in 4σ level of 0.2 mJy beam⁻¹ up to a 3 mJy beam⁻¹ level (to avoid too many contours in the center). A scale-bar and the resolution elements of the line (gray) and continuum are shown as well.