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Type: Conference paper
Title: Gamma rays from dark matter
Author: Protheroe, R.
Citation: High energy gamma-ray astronomy : international symposium, Heidelberg, Germany, 26-30 June 2000 / Felix A. Aharonian, Heinz J. Völk (eds.): pp.491-503
Publisher: American Institute of Physics
Issue Date: 2001
Series/Report no.: AIP conference proceedings ; v. 558
ISBN: 1563969904
ISSN: 0094-243X
Conference Name: International Symposium on High Energy Gamma-Ray Astronomy (2000 : Heidelberg, Germany)
Editor: Aharonian, F.A.
Volk, H.J.
Abstract: I give a brief review of high energy gamma-ray signatures of dark matter. The decay of massive $X$-particles and subsequent hadronization have been suggested as the origin of the highest energy cosmic rays. Propagation over cosmological distances to Earth (as would be the case in some topological defect origin models for the $X$-particles) results in potentially observable gamma-ray fluxes at GeV energies. Massive relic particles on the other hand, would cluster in galaxy halos, including that of our Galaxy, and may give rise to anisotropic gamma ray and cosmic ray signals at ultra high energies. Future observations above 100 Gev of gamma rays due to WIMP annihilation in the halo of the Galaxy may be used to place constraints on supersymmetry parameter space.
Rights: © 2001 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
DOI: 10.1063/1.1370815
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