Channel maps of the ¹²CO(2–1) line emission observed with the SMA. Each box contains pairs of maps corresponding to the blue- (solid contours) and red-shifted (dashed) emission at the same velocity offset (in absolute value) from the the systemic velocity (~96.5 km s^-1). The corresponding LSR velocities are indicated in the top right of the box. Contour levels increase from 0.5 Jy/beam in steps of 0.5 Jy/beam. Also shown is a map of the CH₃CN(12–11) K = 4 line emission averaged over the range 95.2–96.7 km s^-1. The ellipse in the bottom left denotes the synthesized beam of the observations.