Effects of the central luminosity, L_★, on the RATD of dust grains at 0.87 mm, with the fixed parameters of a_max = 50 µm and f_high−J = 1. Each plot is a 2D slice taken at the center of the core in our radiative transfer results. Each column is one radiative transfer run of POLARIS, with L_★ = 1, 5, 20, 50, and 100 L_⊙. Each row indicates whether dust grains are rotationally disrupted in our models, i.e., if the intervals [a_align; a_max] and [a_disr; a_disr,max] overlap. For a given pixel, if there is an overlap, the pixel is black. If it is not the case, it is white. The results from each row are obtained for a given value of grain tensile strength, S_max, i.e., 10⁵, 10⁶, 10⁷ (the same plots as the bottom row of Fig. 8), 10⁸, and 10⁹ erg cm⁻³.