Radial profiles of the temperature distribution and effective Toomre Q parameter for all simulations with R_disk = 100 and t = 1.5 T_disk. As the density distribution the temperature shows a spread-out for the inner and outer parts. This is much more pronounced for the simulations with Q_init = 1, whereas the runs with Q_init = 3 roughly follow the initial distribution. For Q_init = 3, the effective Q parameter stays well above the threshold for marginal stability. In comparison, the effective Q in the Q_init = 1 runs dips below the threshold at the positions with increased density (i.e., fragmenting regions, compare Fig. 7).