Gamma-ray synthetic maps computed as observed from the Earth. Left panels: synthetic maps for the CMZ as a disk and different CR sources (indicated on each panel). Top four right panels: synthetic maps for the CMZ as a ring and different CR sources (indicated on each panel). All maps have been smoothed with a 0.03° Gaussian function to adopt the best CTA beamwidth. Bottom right panel: regions where we contrasted our models with the H.E.S.S. Collaboration (2016) results.