Space-time plots showing the time-evolution of the azimuthally averaged disk characteristics. The columns from left to right correspond to the fiducial model with M_core = 0.53 M_⊙ and α_visc = 10⁻⁴, the model with a lower M_core = 0.3 M_⊙, and the model with higher α_visc = 10⁻³. The rows from top to bottom show: the gas surface density, grown dust surface density, gas temperature in the disk’s midplane, maximum dust size, total dust-to-gas mass ratio, and the effective α-parameter.