Integral fluxes of gamma radiation from the Coma Cluster compared with (heavy solid curves) the sensitivity limits of some current and proposed gamma‐ray experiments. The thin solid line curves refer to ﹩\gamma =2.1﹩ and the dashed ones to ﹩\gamma =2.4﹩. In both cases ﹩R_{\mathrm{cl}\,}=1﹩ Mpc. The EGRET limit at 100 MeV is indicated by the arrow. Panel (a) shows injection of CRs by a point source in the cluster center. Panel (b) shows homogeneous injection of CRs over the cluster volume.