Neutrinos and ultra-high-energy nuclei from blazars: from a single-source model to a population study

0548577 - FZÚ 2022 RIV IT eng C - Konferenční příspěvek (zahraniční konf.)
Rodrigues, X. … celkem 6 autorů
Neutrinos and ultra-high-energy nuclei from blazars: from a single-source model to a population study.
PoS - Proceedings of Science. Vol. 358. Trieste: Sissa Medilab srl, 2019, s. 1-8, č. článku 0991. ISSN 1824-8039.
[36th International Cosmic Ray Conference (ICRC2019). Madison, WI (US), 24.07.2021-01.08.2021]
Výzkumná infrastruktura: AUGER-CZ - 90038
Klíčová slova: ultra-high-energy cosmic rays * blazars
Obor OECD: Particles and field physics
https://pos.sissa.it/358/991/pdf

Five years after the discovery of the diffuse astrophysical neutrino flux, its origin is still unclear. At the same time, composition measurements of ultra-high-energy cosmic rays (UHECRs) seem to indicate a component heavier than protons. In this talk we present an interaction model of protons and heavier nuclei in blazar jets. In bright blazars, photo-nuclear interactions lead to extensive nuclear cascades of lighter elements, and we calculate numerically for the first time their effect on blazar neutrino emission. In the case of flat-spectrum radio quasars (FSRQs), our model considers the effect of CR propagation in the broadline region, which boosts neutrino production in these sources.
Trvalý link: http://hdl.handle.net/11104/0324626