CO J = 3–2 integrated intensity map of the blue shifted wind from HD 163296. The colourscale shows the primary beam corrected integrated intensity of the J = 3–2 emission The black, blue and red circles and contours are the same as Fig. 2. The molecular counterpart to HH knot A2 is more prominent in this image because we have corrected for the fall-off in sensitivity as a function of distance from the pointing centre.