SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 141: Neutrino Astronomy V

T 141.3: Vortrag

Donnerstag, 23. März 2023, 18:00–18:15, POT/0251

Time and Density Dependent Modelling of Hadronic and Leptonic Processes in Blazar Jets^* — •Marcel Schroller, Julia Becker Tjus, and Lukas Merten — Theoretical Physics IV, Ruhr University Bochum, Germany

Active galactic nuclei (AGN), and the accompanied jets, are some of the most luminous objects in the observable Universe. Both the active cores and their jets are candidates for the engine of ultra high-energy cosmic rays, gamma rays, and neutrinos with the highest energies measured on Earth. In 2017, IceCube recorded 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 talk, we present a simulation framework for hadronic constituents and their interactions inside of a plasmoid propagating along the AGN jet axis, which is utilised to investigate the time- and density dependence of hadronic interactions in blazar jets and their effects on multi-messenger spectra. Furthermore, we will provide deeper insights into the results of such simulations and discuss how to include non-linear leptonic radiation processes into our test particle simulation framework for a more complete, physical description of processes in AGN jets. ^*Supported by DFG (SFB 1491).