Prospects for Galactic Dark Matter substructure searches with the Cherenkov Telescope Array (CTA)

par M. Moritz Hütten (DESY)

vendredi 24 mars 2017, 14:00 → 15:00 Europe/Paris

Auditorium

In the current understanding of structure formation in the Universe, the Milky Way is embedded in a clumpy halo of dark matter (DM). Regions of high DM density are expected to emit enhanced gamma-radiation from the DM relic annihilation. These point-like gamma-ray fluxes can possibly be detected by gamma-ray observatories on Earth, like the forthcoming Cherenkov Telescope Array (CTA). In this talk, I will present the expected gamma-ray fluxes from DM annihilation in Galactic subhalos and the sensitivity of the CTA instrument to detect the brightest Galactic DM density clump. I will also show how the CTA extragalactic survey data can be used to search for DM substructures as anisotropies in the angular power spectrum of the data.

Transparents LAPPAnnecy2017.pdf