Channel maps of the SMA CO(3−2) emission. The velocity range of each map is indicated in the top left corner. The SMA synthesised beam of 232 × 141 (PA = 55°) is shown in the central panel. Contour levels of emission are traced starting at 3σ levels and increasing in steps of 3σ. Negative contours are displayed in black starting at 3σ level and decreasing in steps of 3σ. Black crosses represent the three protostars, which are labelled in the central panel. Black and cyan solid lines are the same as in Fig. 1.
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