Linking hard X-ray and high-energy neutrino emission from radio-loud and radio-quiet AGN
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.
Authors
- F. Halzen (ORCID: https://orcid.org/0000-0001-6224-2417)
- S. del Palacio (ORCID: https://orcid.org/0000-0002-5761-2417)
- Jooyun Woo (ORCID: https://orcid.org/0009-0001-6471-1405)
- Emma Kun (ORCID: https://orcid.org/0000-0003-2769-3591)
- I. Bartos (ORCID: https://orcid.org/0000-0001-5607-3637)
- A. Franckowiak (ORCID: https://orcid.org/0000-0002-5605-2219)
- Peter L. Biermann (ORCID: https://orcid.org/0000-0003-3948-6143)
- J. Becker Tjus (ORCID: https://orcid.org/0000-0002-1748-7367)
Publication Details
- Published
- 2025-09-24
- DOI
- https://doi.org/10.22323/1.501.1085
- Primary Topic
- Astrophysics and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Alexander von Humboldt-Stiftung
- Deutsche Forschungsgemeinschaft