Extended Data Fig. 3: The diffuse isotropic γ-ray and neutrino backgrounds.
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 red lines show our model prediction for the neutrino background (single flavour) with Ecut = 100 PeV (solid line) and Ecut = 1 PeV (dashed line), computed as described in the Supplementary Information. We assume a neutrino flavour ratio at the detector of (νe:νμ:ντ) = (1:1:1). The red filled band shows a power-law fit73 to the single flavour astrophysical neutrino background with the 90% likelihood limit, as measured by IceCube, which is also shown as grey points, where the horizontal bars show the energy bin and the vertical bars the 1 σ uncertainty limit
