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Title

WiggleZ Dark Energy Survey: cosmological neutrino mass constraint from blue high-redshift galaxies

Author(s)

Riemer-Sorensen, Signe;  Blake, Chris;  Parkinson, David;  Davis, Tamara M.;  Brough, Sarah;  Colless, Matthew;  Contreras, Carlos;  Couch, Warrick;  Croom, Scott;  Croton, Darren;  Drinkwater, Michael J.;  Forster, Karl;  Gilbank, David;  Gladders, Mike;  Glazebrook, Karl;  Jelliffe, Ben;  Jurek, Russell J.;  Li, I-hui;  Madore, Barry;  Martin, D. Christopher;  Pimbblet, Kevin A.;  Poole, Gregory B.;  Pracy, Michael;  Sharp, Rob;  Wisnioski, Emily;  Woods, David;  Wyder, Ted K.;  Yee, H. K. C.

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<0.60  eV (95% confidence) for WiggleZ+Wilkinson Microwave Anisotropy Probe. Combining with priors on the Hubble parameter and the baryon acoustic oscillation scale gives ∑mν<0.29  eV, which is the strongest neutrino mass constraint derived from spectroscopic galaxy redshift surveys.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing

Source

Physical Review D: Particles, Fields, Gravitation and Cosmology, Vol. 85, no. 8 (Apr 2012), article no. 081101

Publication year

2012

FOR Code(s)

0201 Astronomical and Space Sciences;  0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics;  0206 Quantum Physics

Keyword(s)

Blue galaxies;  Cosmology;  High-redshift galaxies;  Neutrino mass

Publisher

American Physical Society

ISSN

1550-7998

Publisher URL

http://dx.doi.org/10.1103/PhysRevD.85.081101

Copyright

Copyright © 2012 American Physical Society. The published version is reproduced with the kind permission of the publisher.

Research Projects

The last 8 billion years of cosmic evolution, Australian Research Council grant number DP0772084
The fundamental physics governing the formation of cosmic structure, Australian Research Council grant number DP1093738

Full text

Peer reviewed