Effects of Dark Matter Annihilation on the Cosmic Microwave Background

Details Effects of Dark Matter Annihilation on the Cosmic Microwave Background Effects of Dark Matter Annihilation on the Cosmic Microwave Background

2009-07-23

arxiv.org/abs/0907.3985v1

Prog. Theor. Phys. 123 (2010), 853-865

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

14 pages, 5 figures

Scientific paper

10.1143/PTP.123.853

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.

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