Gamma-ray luminosity and average CR energy density from WR stars. Left panel: gamma-ray luminosity profile associated with the CMZ projected from Sgr A* along the Galactic disk. The profile was binned by integrating the flux in the regions shown in the bottom panel of Fig. 2. Right panel: average CR energy density on the CMZ domain, projected from Sgr A* along the Galactic disk. Black dots denote the observed gamma-ray luminosity (left panel) and the indirect observations of CRs (right panel) computed by H.E.S.S. Collaboration (2016) in the CMZ. Blue diamonds and yellow squares represent the gamma-ray luminosity and the indirect observations of CRs from synthetic maps for the CMZ ring and disk models, respectively. Finally, the red triangles are the intrinsic CR energy density, computed directly from the CR model and considering a spherical domain.