Dark Matter Profile in the Galactic Center

Details Dark Matter Profile in the Galactic Center Dark Matter Profile in the Galactic Center

2003-08-21

arxiv.org/abs/astro-ph/0308385v2

Phys.Rev.Lett.93:061302,2004

Astronomy and Astrophysics

Astrophysics

4 pages, Physical Review Letters, matches printed version

Scientific paper

10.1103/PhysRevLett.93.061302

We describe a quasi-equilibrium profile of dark matter particles in the inner parsec of the Galaxy, rho ~ r^-3/2. This "mini-cusp" profile is caused by scattering with the dense stellar cluster around the supermassive black hole in Sgr A* and is independent of the initial conditions. The implications for detection of gamma rays from WIMP dark matter annihilation in the Galactic center are a mild enhancement of the flux, and a characteristic central feature in the angular distribution which could be detectable by high-resolution Atmospheric Cherenkov Telescopes.

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