Séminaires LAPP
Prospects for Galactic Dark Matter substructure searches with the Cherenkov Telescope Array (CTA)
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Europe/Paris
Auditorium
Auditorium
Description
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.