Heidelberg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 99: Neutrino Astronomy 4
T 99.6: Vortrag
Donnerstag, 24. März 2022, 17:35–17:50, T-H30
First Comparison of Ballistic and Diffusive Propagation in Flares of Blazar Jets - Implications for Neutrino Emission Models — •Marcel Schroller1, Julia Becker Tjus1, Patrick Reichherzer1,2, and Mario Hörbe1,3 — 1Ruhr-Universität Bochum, Theoretische Physik IV — 2IRFU, CEA, Université Paris-Saclay — 3Oxford Astrophysics, University of Oxford
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 cosmic rays, gamma rays, and neutrinos with the highest energies measured at 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. The physical and mathematical modelling of an AGN jet is challenging, with ambiguous signatures that need to be understood by numerical simulations of cosmic ray transport and interactions. Based on the work of Hoerbe et al. (MNRAS 2020), a simulation framework for hadronic constituents and their interactions inside of a plasmoid, propagating along the AGN jet axis, was made. For this talk, we tested several state-of-the-art simulation setups from the literature in this field with our framework to analyse the assumptions about propagation behaviour both ballistically and diffusively. We present the results and point out, where those assumptions cannot hold in a realistic setup.