Effects of the maximum dust grain size, a_max, on the radiative transfer results at 0.87 mm, with the fixed parameters of f_high−J = 1 and L_★ = 20 L_⊙. This corresponds to set I of Table 1. Each column is one radiative transfer run of POLARIS, with a_max = 0.5, 2, 10, 30, and 50 µm. Each row is a quantity provided by the radiative transfer (from the first to the sixth row): total intensity Stokes I, polarized intensity (P), polarization fraction, 2D temperature slice obtained at the center, 2D radiation field slice obtained at the center (u_rad/u_ISRF), and the 2D slice of the a_align parameter obtained at the center.