Göttingen 2025 – scientific programme
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T: Fachverband Teilchenphysik
T 53: Neutrino Astronomy III
T 53.1: Talk
Wednesday, April 2, 2025, 16:15–16:30, VG 1.105
A bayesian approach to study the multimessenger emission from AGN-starburst galaxies* — •Silvia Salvatore1,2, Bjoern Eichmann1,2, and Julia Becker-Tjus1,2 — 1Theoretische Physik IV, Ruhr Universität Bochum, Bochum, Germany — 2RAPP-Center at Ruhr Universität Bochum, Bochum, Germany
Active Galactic Nuclei (AGN) and starburst galaxies are multimessenger sources in the Universe, emitting from radio/infrared energies to gamma-ray and neutrino energies. NGC 1068 is a Seyfert II galaxy with a starburst ring that has been proven to emit the neutrinos detected by Icecube through hadronic processes most likely happening in the AGN corona. Two high-energy neutrinos with high probability of being of astrophysical origin have recently been reported by IceCube from the direction of NGC7469 as well. In this presentation, we model the different environments of these AGN-starburst composite sources and constrain the main parameters for the AGN and starburst environments using a Monte Carlo bayesian approach, where we include the data from radio to TeV energies*Supported by DFG (SFB 1491).
Keywords: NGC1068; NGC7469; Seyfert; multimessenger; Icecube