Kolloquien
URL zum ICS-Kalender dieses Seminars
Kirchhoff-Institut für Physik, Otto-Haxel-Hörsaal
freitags 17:15
Vorträge
2.2.2018 17:00
KIP, INF 227, Otto-Haxel-Hörsaal
Gemeinsames Kolloquium mit Karlsruhe
Very high energy (VHE) gamma ray astronomy -
at photon energies of 100 GeV and beyond - has developed in giant steps, with the number of known cosmic VHE gamma ray sources
approaching 200.
Systems of large imaging atmospheric Cherenkov telescopes have
played a key role in this development. VHE gamma rays cannot be produced in thermal
processes; they are created in interactions of high energy particles. Gamma rays trace
populations of such particles and allow imaging of the cosmic particle accelerators. VHE
gamma ray emitters are ubiquitous in the Galaxy and beyond; they include supernova
remnants, pulsars and pulsar wind nebulae and
binary systems, as well as starburst
galaxies, radio galaxies and blazars. The presentation will introduce the Cherenkov
technique, and then discuss some of the key results, concentrating mostly on sources in our
Galaxy. The talk will conclude with an outlook towards the Cherenkov Telescope Array CTA,
as the next-generation facility for ground-
based gamma-ray astronomy.