Image Details
 
                    Caption: Figure 3.
Evolution of the comoving densities of SFR (ρ ψ, solid line) and the product of SFR and gas mass (ρ ψ M , dashed line) in galaxies, calculated by the model of hierarchical galaxy formation. See the left and right ordinates for the units of ρ ψ and ρ ψ M , respectively.
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