Similar to Fig. B.1 but towards the filamentary IRDC G11.36. The contour levels start at 3σ in all cases except for N2H+, where they start at 5σ. In all cases, the contours go in steps of 3σ. The average 1σ value in TMB units is ~ 0.74 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 HCN and HCO+ appear to concentrate towards SMM 5, while HNC, and particularly N2H+, trace the filamentary 8 μm absorption feature.
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