Neutrino and axion hot dark matter bounds after WMAP-7
Hannestad, Steen and Mirizzi, Alessandro and Raffelt, Georg G. and Wong, Yvonne Y. Y.
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Abstract
We update cosmological hot dark matter constraints on neutrinos and hadronic axions. Our most restrictive limits use 7-year data from the Wilkinson Microwave Anisotropy Probe for the cosmic microwave background anisotropies, the halo power spectrum (HPS) from the 7th data release of the Sloan Digital Sky Survey, and the Hubble constant from Hubble Space Telescope observations. We find 95% C.L. upper limits of sum m_nu
