Formamide 162,15–152,14 (red contours) and HNCO 161,16–151,15 (blue contours) emissions are shown overlaid on the dust continuum (grayscale) for core B. These N- and O-bearing species are present in B3 and B1, but B2 is just outside the outermost contour (indicating 1σ). The red contours are 0.20, 0.33, 0.47, 0.61, and 0.74 Jy/beam km s-1 and the blue contours are 0.40, 0.75, 1.10, 1.45, and 1.80 Jy/beam km s-1. B1, B2, and B3 are denoted with colored boxes as in Fig. 1.
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