Final mass M_F, in units of M_L, plotted against A, the amplitude of the density envelope (Eq. (10)), and for various ϵ, the efficiency at which infall triggers turbulent fluctuations. The critical radius is equivalent to the amount of protected envelope mass in units of M_L, and thus . Black lines show the expected mass when the envelope is truncated at , and M_F is expected to be larger than 4 for typical values of A. Blue thin lines show the same result, while truncated at , and the expected M_F is increased to ~8–9. Cyan lines show results for .