Fraction f_tot of the mass of the most massive object M_MMO normalized by the total mass M_tot as a function of the star formation efficiency ϵ_* for the simulations summarized in Table 1. The black dotted line corresponds to the identity function, indicating the scenario where all the stellar mass is concentrated within the central object, representing the maximum possible value for f_tot. The gray arrow indicates the direction of the time evolution. For those authors with more than 8 simulations, we display some representative examples.