TY  - JOUR
AU  - de Sousa Ferreira Rodrigues, Xavier
AU  - Heinze, Jonas
AU  - Palladino, Andrea
AU  - van Vliet, Arjen
AU  - Winter, Walter
TI  - Active galactic nuclei jets as the origin of ultrahigh-energy cosmic rays and perspectives for the detection of astrophysical source neutrinos at EeV energies
JO  - Physical review letters
VL  - 126
IS  - 19
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PUBDB-2021-01868
M1  - DESY-20-095
M1  - arXiv:2003.08392
SP  - 191101 (1-6)
PY  - 2021
N1  - Phys. Rev. Lett. 126, 191101 (2021). Manuscript accepted for publication in Phys. Rev. Lett
AB  - 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 Lacertae objects. An additional, subdominant contribution from high-luminosity AGN is needed to improve the description of the composition observables, leading to a substantial neutrino flux that peaks at exaelectronvolt (EeV) energies. We also find that different properties for the low- and high-luminosity AGN populations are required; a possibly similar baryonic loading can already be excluded from current IceCube Neutrino Observatory observations. 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 the ultra-high-energy (∼EeV) neutrino experiments, since additional search strategies can be used for source neutrinos compared to cosmogenic neutrinos, such as stacking searches, flare analyses, and multimessenger follow-ups.
KW  - cosmic radiation: UHE (INSPIRE)
KW  - cosmic radiation: spectrum (INSPIRE)
KW  - neutrino: flux (INSPIRE)
KW  - neutrino: energy: high (INSPIRE)
KW  - blazar (INSPIRE)
KW  - messenger (INSPIRE)
KW  - propagation (INSPIRE)
KW  - stacking (INSPIRE)
KW  - Gravitation and Astrophysics (autogen)
LB  - PUB:(DE-HGF)16
C6  - pmid:34047601
UR  - <Go to ISI:>//WOS:000652838300004
DO  - DOI:10.1103/PhysRevLett.126.191101
UR  - https://bib-pubdb1.desy.de/record/457130
ER  -