Left panel: internal BLR absorption as a function of distance for different γ-ray energies. The red dot-dashed line shows the R_Lyα radius. Right panel: reconstructed power-law model compared with the data considering external (EBL) and internal absorptions. The latter was computed assuming the emission region is at ∼50 r_g (doted blue line) and at ∼1000 r_g (dot-dashed blue line) distances from the central source.