Fig. 5.
Evolution of the molecular gas to stellar mass ratio as a function of the redshift for cluster galaxies at 0.2 ≳ z ≳ 2.0 detected at CO. Color code is analogous to that of Fig. 4. The solid green curve is the scaling relation found by Tacconi et al. (2018) for field galaxies in the main sequence and with Log(M⋆/M⊙) = 10.8, where an effective radius equal to the mean value found by van der Wel et al. (2014) for star forming galaxies for given z and M⋆ is assumed. The green dashed lines show the statistical 1-σ uncertainties in the model. The dotted black lines show the same scaling relation as the solid green line, but for different stellar masses Log(M/M⋆) = 10.07 and 11.45, that correspond to the stellar mass range spanned by the data points.
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