Similar to Fig. B.1 but towards G1.87−SMM 12, 14, 16. The contour levels start at 3σ for H13CO+, HN13C, C2H, HC3N, and CH3CN. For SiO, HNCO(40, 4 − 30, 3), HCN, HCO+, HNC, and N2H+, the contours start at 5σ, 15σ, 19σ, 10σ, 15σ, and 6σ, respectively. In all cases, the contours go in steps of 3σ. The average 1σ value in TMB units is ~ 0.63 K km s-1. The LABOCA 870 μm peak positions of the clumps are marked by red plus signs. A scale bar indicating the 1 pc projected length is indicated. The emissions of HNCO, HCN, HCO+, HNC, HC3N, and N2H+ are extended in a similar fashion, but the HNCO emission is clearly the strongest.
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