Constraints on Dark Matter annihilations from reionization and heating of the intergalactic gas

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Constraints on Dark Matter annihilations from reionization and heating of the intergalactic gas

Dark Matter annihilations after recombination and during the epoch of structure formation deposit energy in the primordial intergalactic medium, producing reionization and heating. We investigate the constraints that are imposed by the observed optical depth of the Universe and the measured temperature of the intergalactic gas. We find that the bounds are significant, and have the power to rule...

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ژورنال

عنوان ژورنال: Journal of Cosmology and Astroparticle Physics

سال: 2009

ISSN: 1475-7516

DOI: 10.1088/1475-7516/2009/10/009