Testing the dark matter subhalo hypothesis of the gamma-ray source 3FGL J2212.5+0703

Understand

N-body simulations predict that galaxies at the Milky Way scale host a large number of dark matter (DM) subhalos.

• Some of these subhalos, if they are massive enough or close enough to the Earth, might be detectable in $\gamma$ rays due to the DM annihilation.
• 3FGL J2212.5+0703, an unidentified gamma-ray source, has been suggested to be the counterpart candidate of a DM subhalo by Bertoni et al.
• (2015, 2016).