Temperature dependence for the main collision rates of C₂H with H₂. The curves are sorted by ΔJ but cover all transitions of the corresponding series. Every connected dot in Fig. B.1 produces one temperature-dependence graph in this plot. To improve the readability, we have omitted the ΔN = ΔJ = ΔF = 3 series here. Up to 100 K, the lines show the rates computed by Spielfiedel et al. (2012), from 100 to 400 K, and we extrapolated as a power law with the same slope as measured between 90 and 100 K.