Unidentified Gamma-ray Sources as Targets for Indirect Dark Matter Detection with the Fermi-Large Area Telescope

Understand

One of the predictions of the $\Lambda$CDM cosmological framework is the hierarchical formation of structure, giving rise to dark matter (DM) halos and subhalos.

• When the latter are massive enough they retain gas (i.e., baryons) and become visible.
• This is the case of the dwarf satellite galaxies in the Milky Way (MW).
• Below a certain mass, halos may not accumulate significant amounts of baryons and remain completely dark.