Stellar Orbit Constraints on Neutralino Annihilation at the Galactic Center

Abstract

Dark matter annihilation has been proposed to explain the TeV gamma rays observed from the Galactic Center. We study constraints on this hypothesis coming from the mass profile around the Galactic Center measured by observing stellar dynamics. We show that for current particle models, the constraints on the dark matter density profile from measurements of mass by infrared observations are comparable to the constraints from the measurements of the TeV source extension.

arXiv commentreplaced with accepted version, improved presentation, some figures corrected, results unchanged

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Cited by in corpus (18)

• Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits
• The Galactic Center Massive Black Hole and Nuclear Star Cluster
• Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and the Galactic Center Region
• Dynamical constraints on a dark matter spike at the Galactic Centre from stellar orbits
• Collisionally Regenerated Dark Matter Structures in Galactic Nuclei
• Apoastron Shift Constraints on Dark Matter Distribution at the Galactic Center
• Scalar field effects on the orbit of S2 star
• Dark Matter Annihilation and Primordial Star Formation
• Physical laboratory at the center of the Galaxy
• Dark matter dynamics in Galactic center
• Estimating the parameters of the Sgr A* black hole
• The Galactic Center as a laboratory for theories of gravity and dark matter
• Weighing of the Dark Matter at the Center of the Galaxy
• Exact expressions for the pericenter precession caused by some Dark Matter distributions and constraints on them from orbital motions in the Solar System, in the double pulsar and in the Galactic center
• A further look at particle annihilation in dark matter caustics
• Phenomenological constraints on accretion of non-annihilating dark matter on the PSR B1257+12 pulsar from orbital dynamics of its planets
• Mass Limits on Neutralino Dark Matter
• Dark halo microphysics and massive black hole scaling relations in galaxies