Prospects for detecting supersymmetric dark matter in the Galactic halo

V. Springel (), S. D. M. White, C. S. Frenk, J. F. Navarro, A. Jenkins, M. Vogelsberger, J. Wang, A. Ludlow and A. Helmi
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V. Springel: Max Planck Institute for Astrophysics, Karl-Schwarzschild-Strasse 1, 85740 Garching, Germany
S. D. M. White: Max Planck Institute for Astrophysics, Karl-Schwarzschild-Strasse 1, 85740 Garching, Germany
C. S. Frenk: Institute for Computational Cosmology, University of Durham, South Road, Durham DH1 3LE, UK
J. F. Navarro: University of Victoria, Victoria, British Columbia V8P 5C2, Canada
A. Jenkins: Institute for Computational Cosmology, University of Durham, South Road, Durham DH1 3LE, UK
M. Vogelsberger: Max Planck Institute for Astrophysics, Karl-Schwarzschild-Strasse 1, 85740 Garching, Germany
J. Wang: Max Planck Institute for Astrophysics, Karl-Schwarzschild-Strasse 1, 85740 Garching, Germany
A. Ludlow: University of Victoria, Victoria, British Columbia V8P 5C2, Canada
A. Helmi: Kapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen, The Netherlands

Nature, 2008, vol. 456, issue 7218, 73-76

Abstract: Where to find dark matter The nature of the 'dark matter' thought to form the bulk of the Universe remains obscure. One suggestion is that it is an elementary particle, perhaps the lightest supersymmetric partner of known particle species. If that were true, annihilation of dark matter in the halo of the Milky Way should produce γ-rays at a level that should soon be detectable. Where should we be looking for these γ-rays? Springel et al. report numerical simulations that suggest that the dominant and most easily detectable signal will be produced by diffuse dark matter in the main halo of the Milky Way. Previously it was thought that the annihilation signal might be dominated by emission from small clumps of dark matter near to our part of the galaxy, but this new work suggests that their contribution would be small.

Date: 2008
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DOI: 10.1038/nature07411

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