Journal Article

PUBDB-2025-05687

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Multi-epoch leptohadronic modeling of neutrino source candidate blazar PKS 0735+178

Omeliukh, A. (Corresponding author) ; Garrappa, S. ; Fallah Ramazani, V. ; Franckowiak, A.Extern* ; Winter, W.DESY* ; Lindfors, E. ; Nilsson, K. ; Jormanainen, J. ; Wierda, F. ; Filippenko, A. V. ; Zheng, W. ; Tornikoski, M. ; Lähteenmäki, A. ; Kankkunen, S. ; Tammi, J.

2025
EDP Sciences Les Ulis

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Please use a persistent id in citations: doi:10.1051/0004-6361/202452143  doi:10.3204/PUBDB-2025-05687

Report No.: arXiv:2409.04165

Abstract: The origin of the astrophysical neutrino flux discovered by IceCube remains largely unknown. Several individual neutrino source candidates were observed. Among them is the gamma-ray flaring blazar TXS 0506+056. A similar coincidence of a high-energy neutrino and a gamma-ray flare was found in blazar PKS 0735+178. By modeling the spectral energy distributions of PKS 0735+178, we expect to investigate the physical conditions for neutrino production during different stages of the source activity. We analyze the multi-wavelength data during the selected periods of time. Using numerical simulations of radiation processes in the source, we study the parameter space of one-zone leptonic and leptohadronic models and find the best-fit solutions that explain the observed photon fluxes. We show the impact of model parameter degeneracy on the prediction of the neutrino spectra. We show that the available mutli-wavelength data are not sufficient to predict the neutrino spectrum unambiguously. Still, under the condition of maximal neutrino flux, we propose a scenario in which 0.2 neutrino events are produced during the 50 days flare.

Note: A&A 695, A266 (2025). Accepted for publication in A&A

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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. DFG project G:(GEPRIS)445052434 - SFB 1491: Das Wechselspiel der kosmischen Materie - von der Quelle bis zum Signal (445052434) (445052434)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Omeliukh, A. (Corresponding author) ; Garrappa, S. ; Fallah Ramazani, V. ; Franckowiak, A.Extern* ; Winter, W.DESY* ; Lindfors, E. ; Nilsson, K. ; Jormanainen, J. ; Wierda, F. ; Filippenko, A. V. ; Zheng, W. ; Tornikoski, M. ; Lähteenmäki, A. ; Kankkunen, S. ; Tammi, J.
Multi-epoch leptohadronic modeling of neutrino source candidate blazar PKS 0735+178
[10.3204/PUBDB-2026-00219]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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