Preprint

PUBDB-2020-03344

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png AGN jets as the origin of UHECRs and perspectives for the detection of EeV astrophysical neutrinos

de Sousa Ferreira Rodrigues, X. (Corresponding author)DESY* ; Heinze, J.DESY* ; Palladino, A.DESY* ; van Vliet, A.DESY* ; Winter, W.DESY*

2021

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Please use a persistent id in citations: doi:10.3204/PUBDB-2020-03344

Report No.: DESY-20-095; arXiv:2003.08392

Abstract: We demonstrate that a population of Active Galactic Nuclei (AGN) can describe the observed spectrum of ultra-high-energy cosmic rays (UHECRs) at and above the ankle, and that the dominant contribution comes from low-luminosity BL Lacs. Such an AGN-only scenario is in tension with UHECR composition observations above 10 EeV. However, a sub-dominant contribution from high-luminosity AGN reduces this tension and leads simultaneously to a substantial neutrino flux that peaks at EeV energies. The same emission also extends down to PeV energies, and is therefore constrained by current IceCube limits. We also show that the flux of neutrinos emitted from within the sources should outshine the cosmogenic neutrinos produced during the propagation of UHECRs. This result has profound implications for ultra-high-energy ($\sim$EeV) neutrino experiments, since additional search strategies can be used for source neutrinos compared to cosmogenic neutrinos, such as stacking searches, flare analyses, and multi-messenger follow-ups.

Keyword(s): cosmic radiation: UHE ; cosmic radiation: spectrum ; neutrino: flux ; neutrino: energy: high ; blazar ; messenger ; propagation ; stacking

Note: [v1] Wed, 18 Mar 2020 : Blazar origin of the UHECRsand perspectives for the detection of astrophysical source neutrinos at EeV energies

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Contributing Institute(s):

1. Theoretische Astroteilchenphysik (Z_THAT)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)
2. NEUCOS - Neutrinos and the origin of the cosmic rays (646623) (646623)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2020

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Database coverage:
; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article de Sousa Ferreira Rodrigues, X. (Corresponding author)DESY* ; Heinze, J.DESY* ; Palladino, A.DESY* ; van Vliet, A.DESY* ; Winter, W.DESY*
Active galactic nuclei jets as the origin of ultrahigh-energy cosmic rays and perspectives for the detection of astrophysical source neutrinos at EeV energies
Physical review letters 126(19), 191101 (1-6) (2021) [10.1103/PhysRevLett.126.191101]2021     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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