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Bonn 2020 – wissenschaftliches Programm

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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.

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