Dark matter annihilation in the Galaxy: gamma-rays from substructures and dwarf spheroidal galaxies

par Dr Céline Combet (University of Leicester)

vendredi 8 avr. 2011, 14:00 → 14:35 Europe/Paris

Auditorium M. Vivargent (LAPP)

The nature of dark matter still evades us. In this talk, I will focus on the gamma-ray flux from dark matter annihilation, which has been tagged as a promising channel for indirect detection. I will first present CLUMPY, a new public code we developed to compute the gamma-ray flux from any dark matter distribution and instrumental resolution. In the second part of the talk, I will present the recent study we conducted on the detectability of such a signal in the classical dwarf spheroidal galaxies of the Milky Way, based on an MCMC analysis of the kinematical data. I will conclude by providing a new ranking in terms of detectability of these objects for present and future gamma-ray observatories.