Critical nondimensional radius ξ₁ (upper left-hand panel), ψ(ξ₁) = ψ₁ (upper middle panel), density contrast λ₁/ρ_out,1 = (T_out,1/T_c,1)e^ψ₁ (upper right-hand panel), central temperature T_c,1 = 4πGmβ₁/k (lower left), central density λ₁/m (lower middle), and the outer core radius R_out,1 = β^1/2λ^{− 1/2}ξ₁ (lower right) of each critical core configuration as functions of core mass. The profiles are plotted at four different time steps, given in the legend in the bottom middle panel. The blue dotted lines in the upper panels represent the corresponding critical values for the (isothermal) Bonnor-Ebert sphere (ξ₀ = 6.45, ψ₀ = 2.64, and λ₀/ρ_out,0 = 14.1).