Fig. 2

Channel maps of the stacked SO emission (red contours) and the CO J = 3–2 emission with a 3σ clip (grey colour map). The stacked SO emission has with an rms noise of 4.2 mJy beam−1 channel−1 and peak emission of 24.7 mJy beam−1 resulting in a peak S/N of 5.9. The contours are from 3σ to peak in intervals of σ. The stated velocities are with respect to the source velocity.
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