Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 66: Neutrino astronomy 3
T 66.8: Talk
Wednesday, March 6, 2024, 17:45–18:00, Geb. 30.23: 6/1
Extending Hadronic Test Particle Simulations by Non-Linear Leptonic Processes — •Marcel Schroller1,2, Julia Becker Tjus1,2,3, and Lukas Merten1,2 — 1Theroretical Physics IV, Ruhr University Bochum, 44780 Bochum, Germany — 2Ruhr Astroparticle and Plasma Physics Center (RAPP Center), Germany — 3Department of Space, Earth and Environment, Chalmers University of Technology, 412 96 Gothenburg, Sweden
Active galactic nuclei (AGN) and the accompanying jets are candidates for the engine of ultra-high-energy cosmic rays, gamma rays, and neutrinos. In 2017, IceCube observed an extragalactic high-energy neutrino event with a strong hint of a directional coincidence with the position of a known jetted AGN TXS0506+056. A deep understanding of the processes related to jets will fuel the field of high-energy cosmic rays, fundamental plasma, astro, and particle physics. However, an AGN jet’s physical and mathematical modelling is challenging, with ambiguous signatures that need to be understood by numerical simulations of cosmic-ray transport and interactions. In this context, we present a simulation framework based on CRPropa 3.2 for hadronic constituents and their interactions inside a plasmoid boosted along the AGN jet axis. Consequently, the framework was utilised to investigate the impact of spacetime-dependent photonic and hadronic target fields on hadronic interactions. Furthermore, we will present the results of our simulations and discuss how to implement non-linear leptonic radiation processes into our test particle simulation framework, enabling us to construct an improved physical description of AGN jets.
Keywords: Active Galactic Nuclei; Relativistic Jets; Blazars; Multi-Messenger Modelling; Numerical Simulations