γ-rays from starburst galaxies
arXiv:1210.6888 · doi:10.1063/1.4772221
Abstract
In this paper the current status of γ-ray observations of starburst galaxies from hundreds of MeV up to TeV energies with space-based instruments and ground-based Imaging Atmospheric Cherenkov Telescopes (IACTs) is summarised. The properties of the high-energy (HE; 100 MeV < E < 100 GeV) and very-high-energy (VHE; E > 100 GeV) emission of the archetypical starburst galaxies M 82 and NGC 253 are discussed and put into context with the HE γ-ray emission detected from other galaxies that show enhanced star-formation activity such as NGC 4945 and NGC 1068. Finally, prospects to study the star-formation - γ-ray emission connection from Galactic systems to entire galaxies with the forthcoming Cherenkov Telescope Array (CTA) are outlined.
8 pages, 2 figures, solicited talk, to be published in High Energy Gamma-Ray Astronomy (eds. F. Aharonian, W. Hofmann, F. Rieger) the proceedings of the 5th Heidelberg international symposium on high energy gamma-ray astronomy