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T: Fachverband Teilchenphysik
T 103: Cosmic rays IV
T 103.1: Vortrag
Freitag, 3. April 2020, 11:00–11:15, L-3.002
Connection between turbulence and diffusive Cosmic Ray transport in the ISM — •Julien Dörner, Patrick Reichherzer, and Julia Tjus — RAPP-Center at Ruhr-University Bochum, Theoretische Physik IV, Bochum, Germany
The propagation of Cosmic Rays can be described by diffusive motion in most astrophysical environments. In the diffusion approach a proper modeling of the diffusion tensor is necessary. It has recently been shown that the energy dependence of the parallel component of the diffusion tensor is a function of the turbulence level, i.e. κ∝ Eγ(δ B/B). In this talk, we will discuss these insights in the astrophysical context. We focus on the impact of δ B/B−dependent diffusion on the signatures of cosmic-ray propagation in the Galactic Interstellar Medium and the interpretation of recent gamma-ray measurements by Fermi.