Cosmological constraints on neutrino plus axion hot dark matter: Update after WMAP-5
Astrophysics
2010-05-12 v2 High Energy Physics - Phenomenology
Abstract
We update our previous constraints on two-component hot dark matter (axions and neutrinos), including the recent WMAP 5-year data release. Marginalising over sum m_nu provides m_a < 1.02 eV (95% C.L.) for the axion mass. In the absence of axions we find sum m_nu < 0.63 eV (95% C.L.).
Cite
@article{arxiv.0803.1585,
title = {Cosmological constraints on neutrino plus axion hot dark matter: Update after WMAP-5},
author = {Steen Hannestad and Alessandro Mirizzi and Georg G. Raffelt and Yvonne Y. Y. Wong},
journal= {arXiv preprint arXiv:0803.1585},
year = {2010}
}
Comments
4 pages, 1 figure, uses iopart.cls; v2 matches published version