X-ray Radiation from the Annihilation of Dark Matter at the Galactic Center

Abstract

The existing and upcoming multiwavelength data from the Galactic Center suggest a comparative study in order to propose or rule out possible models which would explain the observations. In this paper we consider the X-ray synchrotron and the gamma-ray emission due to Kaluza Klein Dark Matter and define a set of parameters for the shape of the Dark Matter halo which is consistent with the observations. We show that for this class of models the existing Chandra X-ray data is more restrictive than the constraints on very high energy gamma-rays coming from HESS.

arXiv comment7 pages 6 figures, updated to match version in print

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Cited by in corpus (26)

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• The structure of the nuclear stellar cluster of the Milky Way
• Gamma-ray and radio tests of the e+e- excess from DM annihilations
• Dark Matter Candidates: A Ten-Point Test
• Fitting the Gamma-Ray Spectrum from Dark Matter with DMFIT: GLAST and the Galactic Center Region
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• Extragalactic Inverse Compton Light from Dark Matter Annihilation and the Pamela Positron Excess
• Extracting the Gamma Ray Signal from Dark Matter Annihilation in the Galactic Center Region
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• Axionic Dark Radiation and the Milky Way's Magnetic Field
• Searching for Dark Matter in Messier 33
• Radio Signal by Galactic Dark Matter
• Signatures of Synchrotron Radiation from the Annihilation of Dark Matter at the Galactic Centre