Tracing Cosmic Rays Through Their Gamma-Ray Signatures

by Prof. Olaf Reimer (Institut für Astro- und Teilchenphysik Leopold-Franzens-Universität Innsbruck)

Tuesday 22 Apr 2014, 17:00 → 18:30 Europe/Berlin

Auditorium (MPI fuer Physik)

Charged Cosmic Rays do not readily reveal their astrophysical origin to an observer. Magnetic fields unavoidably bend their trajectories on their way from source or acceleration regions to suitable detectors. Therefore neutral messengers produced by interactions of Cosmic Rays and interstellar/intergalactic matter are studied to probe extreme particle acceleration on all accessible scales in our Universe. In particular, observations in the high-energy gamma-ray regime revealed a variety of Cosmic Ray accelerators over the recent years. I’ll discuss a vast variety of such signatures seen in gamma-rays ranging from terrestrial to extragalactic scales.