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26 April 2024

» arxiv » 1112.4940

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The WiggleZ Dark Energy Survey: Cosmological neutrino mass constraint from blue high-redshift galaxies
Signe Riemer--Sørensen ; Chris Blake ; David Parkinson ; Tamara M. Davis ; Sarah Brough ; Matthew Colless ; Carlos Contreras ; Warrick Couch ; Scott Croom ; Darren Croton ; Michael J. Drinkwater ; Karl Forster ; David Gilbank ; Mike Gladders ; Karl Glazebrook ; Ben Jelliffe ; Russell J. Jurek ; I-hui Li ; Barry Madore ; D. Christopher Martin ; Kevin Pimbblet ; Gregory B. Poole ; Michael Pracy ; Rob Sharp ; Emily Wisnioski ; David Woods ; Ted K. Wyder ; H.K.C. Yee ;
Date:	21 Dec 2011
Abstract:	The absolute neutrino mass scale is currently unknown, but can be constrained from cosmology. The WiggleZ high redshift star-forming blue galaxy sample is less sensitive to systematics from non-linear structure formation, redshift-space distortions and galaxy bias than previous surveys. We obtain a upper limit on the sum of neutrino masses of 0.60eV (95% confidence) for WiggleZ+Wilkinson Microwave Anisotropy Probe. Combining with priors on the Hubble Parameter and the baryon acoustic oscillation scale gives an upper limit of 0.29eV, which is the strongest neutrino mass constraint derived from spectroscopic galaxy redshift surveys.
Source:	arXiv, 1112.4940
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