Effects of Dark Matter Annihilation on the Cosmic Microwave Background
Cosmology and Nongalactic Astrophysics
2010-07-06 v1 High Energy Physics - Phenomenology
Abstract
We study the effects of dark matter annihilation during and after the cosmic recombination epoch on the cosmic microwave background anisotropy, taking into account the detailed energy deposition of the annihilation products. It is found that a fairly stringent constraint on the annihilation cross section is imposed for TeV scale dark matter masses from WMAP observations.
Keywords
Cite
@article{arxiv.0907.3985,
title = {Effects of Dark Matter Annihilation on the Cosmic Microwave Background},
author = {Toru Kanzaki and Masahiro Kawasaki and Kazunori Nakayama},
journal= {arXiv preprint arXiv:0907.3985},
year = {2010}
}
Comments
14 pages, 5 figures