Gamma-ray luminosity and average CR energy density from WR stars and Sgr A East. Left panel: gamma-ray luminosity from the CMZ in the ring model, projected from Sgr A* along the Galactic disk for a continuous source plus a central impulsive source of CRs, considering the location, injection rate and energy, and age of the WR stars and Sgr A East, respectively. The profile that was binned in the regions is shown in the bottom panel of Fig. 2. Right panel: average CR energy density on the CMZ domain as a ring, projected from Sgr A* along the Galactic disk. Black dots are 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 are the gamma-ray luminosity and the indirect observations of CRs from synthetic maps for a CMZ modeled as a ring (same as in Fig. 3). Green squares are the gamma-ray luminosity and the indirect observations of CRs from a central impulsive young source for a CMZ modeled as a ring. Cyan triangles are the sum of both components.