Fig. 2.

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CMZ gamma-ray luminosity profiles in the HE band from models consistent with VHE observations, with and without the CR sea (right and left panel, respectively). The luminosities were calculated by integrating the flux in the regions shown in the bottom-right panel of Fig. 1. Black crosses denote the observed gamma-ray luminosity from Gaggero et al. (2017) in the CMZ. Yellow squares represent the gamma-ray luminosity for simplified CR transport, injection from the NSC, and the CMZ as a disk (NSC/CMZ-disk). Cyan diamonds represent the gamma-ray luminosity for simplified CR transport, injection from the NSC and SN Sgr A East, and the CMZ as a ring (NSC+SgrAE/CMZ-ring). Red triangles represent the gamma-ray luminosity for more realistic CR transport, injection from the NSC, AC, QC and SN Sgr A East, and the CMZ as a ring (All/CMZ-ring).
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