WiggleZ Dark Energy Survey: Cosmological neutrino mass constraint from blue high-redshift galaxies
- Riemer–Sorensen, Signe
- Blake, Chris
- Parkinson, David
- Davis, Tamara
- Brough, Sarah
- Colless, Matthew
- Contreras, Carlos
- Couch, Warrick
- Croom, Scott M
- Croton, Darren
- Drinkwater, Michael John
- Sharp, Robert
- Forster, Karl
- Gilbank, David
- Madore, Barry
- Wyder, Ted
Publication date
December 2015
DOI Publisher
American Physical Society (APS) Journal
Physical Review DAbstract
The absolute neutrino mass scale is currently unknown, but can be constrained by cosmology. The WiggleZ high redshift, star-forming, and blue galaxy sample offers a complementary data set to previous surveys for performing these measurements, with potentially different systematics from nonlinear structure formation, redshift-space distortions, and galaxy bias. We obtain a limit of m ν<0.60eV (95% confidence) for WiggleZ+WilkinsonMicrowaveAnisotropyProbe. Combining with priors on the Hubble parameter and the baryon acoustic oscillation scale gives m ν<0. 29eV, which is the strongest neutrino mass constraint derived from spectroscopic galaxy redshift surveys
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