Muon neutrino-flux normalizations at 1 TeV predicted by the source star-forming activity as a function of source decl. The diamonds correspond to the most likely values of the source parameters deduced by current gamma-ray data (see Table 1), while the bands represent the 68% credible intervals of the marginal flux distributions. The lines show the pointlike sensitivity of different neutrino telescopes: 6 yr KM3NeT/ARCA (Aiello et al. 2019), 10 yr IceCube (Aartsen et al. 2020), and 10 yr IceCube-Gen2 estimated according to Aartsen et al. (2021).