Residual TS maps without G150.3+4.5 in the model from 1 to 10 GeV (left panel) and 10 to 100 GeV (right panel). The best-fit Gaussian and disk are represented in green and blue, respectively, the crosses being the centroid uncertainties (1σ) and the solidand dashed circles corresponding to the r₆₈ with its associated statistical errors (1σ). The white symbols and yellow contours are the same as in Fig. 2. The red circle and line show the northeastern and southwestern hemispheres of the best-fit disk found between 1 GeV and 3 TeV (see Sect. 2.3).