Galactic structure and Dark Matter Indirect Detection -- Lidia Pieri -- Département d'Astronomie/Université de Padoue

jeudi 10 déc. 2009, 14:00 → 15:00 Europe/Paris

Amphi Grossetete (LPNHE)

According to the Lambda Cold Dark Matter paradigm, the dark matter halos today were formed through successive mergers of smaller mass halos. Part of these merging halos survived without being disrupted in the merging event, and form the structure of galaxies and clusters today. We implement different models describing the properties of a population of substructures inside the Milky Way as well as at cosmological distances, based on recent N-body simulation, and we derive expected all-sky gamma-ray maps and sensitivity predictions for the Fermi satellite. We then present our method to obtain multi-wavelength and multi-messenger constraints to particle physics models proposed to explain the dark matter puzzle. We show that combining the information derived from photons and antimatter is a powerful tool to test the reliability of any given model.

Slides LPNHE_10dic09_Pieri.pdf