Amsterdam-Paris-Stockholm 5th meeting

Session

Dark Matter density

23 Sept 2015, 08:30

Djurönäset

13. Boosting the Annihilation Boost: Tidal Stripping and the Subhalo Luminosity

Richard Bartels (University of Amsterdam)

23/09/2015, 08:30

In the cold dark matter paradigm, structures form hierarchically, implying that large structures contain smaller substructures. These subhalos will enhance signatures of dark matter annihilation such as gamma rays. In the literature typical estimates of this boost factor assume a concentration- mass relation for field halos, to calculate the luminosity of subhalos. However, since subhalos...

15. Towards a Maximum Likelihood estimate of the dwarf spheroidal galaxies J factor

Mr Andrea Chiappo (The Oskar Klein Center, Stockholm University)

23/09/2015, 08:55

The dwarf spheroidal satellite galaxies of the Milky Way appear to be the most dark matter (DM) dominated objects in the near Universe. Their very low astrophysical background in the $\gamma$-ray energy range makes them ideal targets for DM indirect detection, which can be achieved by searching for its decay or annihilation signals. The latter approach requires the calculation of...

12. Implications of hydrodynamic simulations for dark matter direct detection

Nassim Bozorgnia (GRAPPA, University of Amsterdam)

23/09/2015, 09:20

There is significant astrophysical uncertainty in the interpretation of data from dark matter direct detection experiments, due to the poorly known dark matter distribution at the position of the Sun. I will discuss the local dark matter density and velocity distribution of Milky Way-like galaxies obtained from the high-resolution EAGLE hydrodynamic simulations. To make reliable predictions...

7. A New Method for Determining the Local Dark Matter Density

Hamish Silverwood (University of Amsterdam)

23/09/2015, 10:30

Determination of the Dark Matter (DM) density at the solar position is critical to direct and indirect dark matter searches. Additionally, it is important to make this determination with as few assumptions as possible, as results from direct detection searches are used to explore a wide variety of theoretical models, and hidden astrophysical assumptions could bias theoretical searches. Here we...

23. Discussion

23/09/2015, 10:55