Comparison of the torque evolutions obtained in the κ_BL-disk (solid black curve; same as in Fig. 2) and the -disk (dashedblue curve). The first model inputs azimuthally averaged values of ρ and T to the opacity function of Bell & Lin (1994), while the latter uses local values of ρ and T. Both cases lead to the instability of the circumplanetary flow, but they differ in the amplitude of the torque oscillations.