Comparison of the radial profiles during the collapse of a 0.1  M_⊙, 1 M_⊙, and 10 M_⊙ dense cloud for a core central density ρ_c = 10^-8  g   cm^-3. From top left to bottom right: a) density; b) gas temperature; c) velocity; d) entropy; e) radiative flux; and f) enclosed mass. The legend in the f) panel explains the curve colour-coding: the top row is the mass of the initial cloud and the bottom row is the number of frequency groups used in each simulation.