Speaker
Description
We present a detailed study of the contribution of low- and high-luminosity jetted Active Galactic Nuclei (AGN) populations to the spectrum and composition of ultra-high-energy cosmic rays (UHECRs) and the corresponding EeV neutrino flux. We find that two AGN populations should have different properties to explain the UHECR data. Our results show that the dominant contribution to the neutrino flux at EeV energies comes from low-luminosity BL Lacs when using the air-shower model EPOS-LHC, while contribution of high-luminosity BL Lacs is required when using SIBYLL 2.3d. We also find that the contribution of flat-spectrum radio quasars (FSRQs) is not constrained by a fit of UHECR, but the inclusion of FSRQ is necessary to detect the neutrino flux from AGN with future instruments.
