Fig. 10

Link between IR luminosity and HCN (upper panel) and HCO+ (lower panel) luminosity. The lines show a linear relation between the two quantities. The fits are log (LIR) = 2.95424 + log (LHCN) and log (LIR) = 3.04258 + log (LHCO+) and are from respectively Gao & Solomon (2004b) and Graciá-Carpio et al. (2008). The symbols indicate the reference and the scale of the observation.
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