Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 80: Cosmic Rays IV

T 80.3: Vortrag

Donnerstag, 3. April 2025, 16:45–17:00, VG 3.102

Study on the transport behavior in blazars in anisotropic magnetic fields^* — •Milena Brütting^1,2, Vladimir Kiselev^1,2, and Julia Becker Tjus^1,2 — ¹Theoretical Physics IV, Ruhr-University Bochum, Bochum, Germany — ²RAPP-Center at Ruhr-University Bochum, Bochum, Germany

Active Galactic Nuclei (AGN) are currently considered a likely source of ultra-high-energy cosmic rays (UHECR). Blazars, in particular, represent highly interesting research objects from an astrophysical point of view due to a complex jet structure which will hopefully yield new information on particle transport behavior. Following this line of research we plan to investigate the effect of anisotropies of the magnetic field on cosmic-ray propagation in the jets of blazars. For this purpose, a modified version of the open-source code CRPropa 3.2 shall be used to allow for cosmic ray transport in blazar jets. Building on previous work, we will attempt to simulate the propagation of high-energy protons in a relativistic plasmoid and investigate their diffusive behavior in the presence of an anisotropic magnetic field.
^* Supported by DFG (SFB 1491)

Keywords: blazars; cosmic rays