Dark Matter spikes around Sgr A* in $\gamma$-rays

Shyam Balaji, Divya Sachdeva, Filippo Sala +1

We use H.E.S.S. $\gamma$-ray observations of Sgr A* to derive novel limits on the Dark Matter (DM) annihilation cross-section. We quantify their dependence on uncertainties i) in the DM…