Extragalactic Blazar Diffuse Population Interpretation for the KM3-230213A event
- NázevTitle
- Extragalactic Blazar Diffuse Population Interpretation for the KM3-230213A eventExtragalactic Blazar Diffuse Population Interpretation for the KM3-230213A event
- Druh výsledkuResult type
- Příspěvek ve sborníkuProceedings paper
- AutořiAuthors
- A.B. Bouasla, R. Attallah, O. Adriani, A. Albert, Z. Beňušová, E. Eckerová, Ľ. Krupa, F. Mamedov, M. Petropavlova, Y. Shitov, I. Štekl
- Klíčová slovaKeywords
- KM3NeT, neutrino telescope, Extragalactic Blazar
- KonferenceConference
- 39th International Cosmic Ray Conference (Geneva, Switzerland, 2025-07-14)
- DOIDOI
- 10.22323/1.501.0986
- Časopis / citaceJournal / citation
- In: Proceedings of 39th International Cosmic Ray Conference — PoS(ICRC2025), Sissa Medialab, 2025, pp. 986 · ISSN 1824-8039
- RokYear
- 2025
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026); Laboratoire Souterrain de Modane - účast ČRLaboratoire Souterrain de Modane – participation of the Czech Republic
- CitovánoCited by
- 1 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://pos.sissa.it/501/986/pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
On February 13, 2023, the KM3NeT/ARCA neutrino telescope detected an ultra-high-energy neutrino event, KM3-230213A, with an estimated energy in the hundreds of PeV range. In this study, we explore whether such a rare event can originate from a diffuse population of blazars. We simulate the neutrino and photon emission from blazar jets using the AM3 lepto-hadronic code, convolve the results with the Fermi-LAT blazar luminosity function, and evaluate the resulting diffuse flux. A likelihood analysis incorporating both KM3NeT and IceCube exposure data, as well as a gamma-ray background penalty from Fermi-LAT, allows us to constrain the parameter space of the baryonic loading and proton spectral index. We find that the KM3-230213A event could have been generated by a blazar diffuse flux, under physically motivated assumptions. This work demonstrates the strength of multi-messenger analyses and underlines the importance of joint neutrino observatory efforts in interpreting the high-energy sky.
On February 13, 2023, the KM3NeT/ARCA neutrino telescope detected an ultra-high-energy neutrino event, KM3-230213A, with an estimated energy in the hundreds of PeV range. In this study, we explore whether such a rare event can originate from a diffuse population of blazars. We simulate the neutrino and photon emission from blazar jets using the AM3 lepto-hadronic code, convolve the results with the Fermi-LAT blazar luminosity function, and evaluate the resulting diffuse flux. A likelihood analysis incorporating both KM3NeT and IceCube exposure data, as well as a gamma-ray background penalty from Fermi-LAT, allows us to constrain the parameter space of the baryonic loading and proton spectral index. We find that the KM3-230213A event could have been generated by a blazar diffuse flux, under physically motivated assumptions. This work demonstrates the strength of multi-messenger analyses and underlines the importance of joint neutrino observatory efforts in interpreting the high-energy sky.