Resolution effect on the radial thermal structure (top) and the global SED (bottom) for two values of the jet power fraction b. This figure is similar to Fig. 5, which has been computed using N = 15 and is reported here as green markers (top) and green solid lines (bottom). The results obtained for N = 40 and 70 are shown as dot-dashed and dashed gray lines in the top panel, respectively. The colors show solutions for N = 100.