Galactic Center Gamma-Ray Excess from Dark Matter Annihilation: Is There A Black Hole Spike?

Brian D. Fields, Stuart L. Shapiro, Jessie Shelton

If the supermassive black hole Sgr A* at the center of the Milky Way grew adiabatically from an initial seed embedded in an NFW dark matter (DM) halo, then the DM profile near the…