Theoretical High Energy Astrophysics

The research group of Anita Reimer studies the physics of cosmic high energy sources and phenomena with particular focus on solving the quest for the origin of the ultrahigh energy cosmic rays. Here the multimessenger approach (leading to gamma-ray, neutrino and cosmic-ray astrophysics), and a detailed understanding of hadronic interactions, particle and photon propagation and radiation processes from non-thermal particle distributions is central.

We engage in the development of models for high energy cosmic sources such as black hole sources (e.g., jetted Active Galactic Nuclei), stellar binary systems involving massive stars, etc., including particle acceleration processes. We also study the source content of diffuse radiation fields and the impact of low energy diffuse radiation fields on high energy photon and particle propagation.

Our group is working at the borderline between theoretical and experimental high energy astrophysics, and is correspondingly currently involved in the Fermi-LAT Space Telescope and the H.E.S.S. Experiment in Namibia.

Symbolbild Hochenergieastrophysik


Head of the Research Group
assoz. Prof. Dipl.-Phys. Dr. Anita Reimer
Tel. +43 512 507-52274