Constraints to dark matter annihilation from high-latitude HAWC unidentified sources

Understand

The $\Lambda$CDM cosmological framework predicts the existence of thousands of subhalos in our own Galaxy not massive enough to retain baryons and become visible.

• Yet, some of them may shine in gamma rays provided that the dark matter (DM) is made of weakly interacting massive particles (WIMPs), that would self-annihilate and would appear as unidentified gamma-ray sources (unIDs) in gamma-ray catalogs.
• Indeed, unIDs have proven to be competitive targets for DM searches with gamma rays.
• In this work, we focus on the three high-latitude ($|b|\geq 10^\circ$) sources present in the 2HWC catalog of the High Altitude Water Cherenkov (HAWC) observatory with no associations at other wavelenghts.