Modeling dark matter subhalos in a constrained galaxy: Global mass and boosted annihilation profiles

Understand

The interaction properties of cold dark matter (CDM) particle candidates, such as those of weakly interacting massive particles (WIMPs), generically lead to the structuring of dark matter on scales much smaller than typical galaxies, potentially down to $\sim 10^{-10}M_\odot$.

• This clustering translates into a very large population of subhalos in galaxies and affects the predictions for direct and indirect dark matter searches (gamma rays and antimatter cosmic rays).
• In this paper, we elaborate on previous analytic works to model the Galactic subhalo population, while consistently with current observational dynamical constraints on the Milky Way.
• In particular, we propose a self-consistent method to account for tidal effects induced by both dark matter and baryons.