Tootfinder

Constraining the contribution of Seyfert galaxies to the diffuse neutrino flux in light of point source observations
Lena Saurenhaus, Francesca Capel, Foteini Oikonomou, Johannes Buchner
https://arxiv.org/abs/2507.06110

Constraining the contribution of Seyfert galaxies to the diffuse neutrino flux in light of point source observations
Recently, the IceCube Collaboration reported evidence for TeV neutrino emission from several nearby Seyfert galaxies, with the highest significance found for NGC 1068. Assuming stochastic proton acceleration in magnetized turbulence inside the corona, we model the neutrino emission of Seyfert galaxies as a function of their X-ray luminosity. Applying our model to NGC 1068, we obtain a good fit to the public IceCube data and constrain the coronal radius to $\lesssim 5 R_S$ by comparing our MeV $…