Heating rates (upper plot) and the corresponding jet radius (lower plot) extracted from the simulations for a fixed R_c and a variable I_h. For all the cases, the stellar component is unchanged and matches the green dotted curve. In the upper plot, the dotted lines express the heating extracted at θ ∼ 0, and the solid lines are for values of the heating on the equator (θ ∼ π/2).