Surface gamma-ray flux profiles for successful models. Profiles are obtained between 0.797° < l < 1.337° and b = 0.094° (top-left panel), 0.013° (top-right panel), −0.067° (bottom-left panel) and −0.229° (bottom-right panel). The profile is binned adopting the CTA angular resolution, 0.03°. Lines show gamma-ray flux considering 50h of observation with CTA and E_γ ≥ 1 TeV. Yellow and cyan profiles represent the models proposed in Paper I with the CMZ as a disk and a ring. The red profiles are from the model considering differential diffusion, polar advection, and CR injection from NSC, Sgr A East, AC, and QC (all sources). The central 0.2° around Sgr A* was excluded.