WiggleZ Dark Energy Survey: Cosmological neutrino mass constraint from blue high-redshift galaxies
Abstract
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 ∑mν<0.60eV (95% confidence) for WiggleZ+WilkinsonMicrowaveAnisotropyProbe. Combining with priors on the Hubble parameter and the baryon acoustic oscillation scale gives ∑mν<0.29eV, which is the strongest neutrino mass constraint derived from spectroscopic galaxy redshift surveys.
- Publication:
-
Physical Review D
- Pub Date:
- April 2012
- DOI:
- 10.1103/PhysRevD.85.081101
- arXiv:
- arXiv:1112.4940
- Bibcode:
- 2012PhRvD..85h1101R
- Keywords:
-
- 98.80.Es;
- 14.60.Pq;
- 95.80.+p;
- 98.62.Py;
- Observational cosmology;
- Neutrino mass and mixing;
- Astronomical catalogs atlases sky surveys databases retrieval systems archives etc.;
- Distances redshifts radial velocities;
- spatial distribution of galaxies;
- Astrophysics - Cosmology and Extragalactic Astrophysics;
- High Energy Physics - Phenomenology
- E-Print:
- Matches version accepted by PRD