Linking hard X-ray and high-energy neutrino emission from radio-loud and radio-quiet AGN
Paper in proceeding, 2025
High-energy neutrinos, detected by the IceCube Neutrino Observatory, have been linked to both radio-loud and radio-quiet active galactic nuclei (AGN). While jets are often invoked to explain neutrino production in radio-loud AGN, we explore an alternative scenario based on observations: particle production in the gamma-obscured cores near supermassive black holes. We report comparable unabsorbed hard X-ray and neutrino luminosities in six AGNs, including the radio-quiet Seyfert galaxy NGC 1068 and the radio-loud blazar TXS 0506+056. Our findings point to a possible common origin of neutrino emission in diverse AGN classes.
Author
Emma Kun
Research Centre for Astronomy and Earth Sciences
Ruhr-Universität Bochum
Hungarian Academy of Sciences
Imre Bartos
University of Florida
Julia Tjus
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Ruhr-Universität Bochum
Peter L. Biermann
Max Planck Society
University of Alabama
A. Franckowiak
Ruhr-Universität Bochum
F. Halzen
University of Wisconsin
Santiago Del Palacio
Chalmers, Space, Earth and Environment, Astronomy and Plasmaphysics
Jooyun Woo
Columbia University
Proceedings of Science
18248039 (eISSN)
Vol. 501 1085
39th International Cosmic Ray Conference, ICRC 2025
Geneva, Switzerland,
Geneva, Switzerland,
Subject Categories (SSIF 2025)
Astronomy, Astrophysics, and Cosmology
Subatomic Physics
DOI
10.22323/1.501.1085