Extended Data Fig. 6: Contributions to the diffuse isotropic γ-ray background.
From: The diffuse γ-ray background is dominated by star-forming galaxies
The blue line and black points show the model-predicted and observed γ-ray background, and are identical to those shown in Fig. 4. The green line shows the contribution from π0 decay, the olive lines the contribution from bremsstrahlung emission, and the cyan lines the contribution from the inverse Compton emission. In both cases, dashed lines show the spectrum produced by primary CR electrons and the dash-dotted lines the spectrum from secondary electrons and positrons. The red line shows the contributions from the EBL cascade
