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The WiggleZ Dark Energy Survey: constraining galaxy bias and cosmic growth with three-point correlation functions

Marín, Felipe A.; Blake, Chris; Poole, Gregory B.; McBride, Cameron K.; Brough, Sarah; Colless, Matthew; Contreras, Carlos; Couch, Warrick; Croton, Darren J.; Croom, Scott; Davis, Tamara; 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; Pracy, Michael; Sharp, Rob; Wisnioski, Emily; Woods, David; Wyder, Ted K.; Yee, H. K. C.

Authors

Felipe A. Marín

Chris Blake

Gregory B. Poole

Cameron K. McBride

Sarah Brough

Matthew Colless

Carlos Contreras

Warrick Couch

Darren J. Croton

Scott Croom

Tamara Davis

Michael J. Drinkwater

Karl Forster

David Gilbank

Mike Gladders

Karl Glazebrook

Ben Jelliffe

Russell J. Jurek

I-hui Li

Barry Madore

D. Christopher Martin

Michael Pracy

Rob Sharp

Emily Wisnioski

David Woods

Ted K. Wyder

H. K. C. Yee



Abstract

Higher order statistics are a useful and complementary tool for measuring the clustering of galaxies, containing information on the non-Gaussian evolution and morphology of large-scale structure in the Universe. In this work we present measurements of the three-point correlation function (3PCF) for 187 000 galaxies in theWiggleZ spectroscopic galaxy survey.We explore the WiggleZ 3PCF scale and shape dependence at three different epochs z = 0.35, 0.55 and 0.68, the highest redshifts where these measurements have been made to date. Using N-body simulations to predict the clustering of dark matter, we constrain the linear and non-linear bias parameters of WiggleZ galaxies with respect to dark matter, and marginalize over them to obtain constraints on σ 8 (z), the variance of perturbations on a scale of 8 h-1 Mpc and its evolution with redshift. These measurements of σ 8 (z), which have 10-20 per cent accuracies, are consistent with the predictions of the δ cold dark matter concordance cosmology and test this model in a new way. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.

Journal Article Type Article
Publication Date Jul 11, 2013
Journal Monthly notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Oxford University Press (OUP)
Peer Reviewed Peer Reviewed
Volume 432
Issue 4
Pages 2654-2668
APA6 Citation Marín, F. A., Blake, C., Poole, G. B., McBride, C. K., Brough, S., Colless, M., …Yee, H. K. C. (2013). The WiggleZ Dark Energy Survey: constraining galaxy bias and cosmic growth with three-point correlation functions. Monthly notices, containing papers, abstracts of papers, and reports of the proceedings of the Society, 432(4), 2654-2668. https://doi.org/10.1093/mnras/stt520
DOI https://doi.org/10.1093/mnras/stt520
Keywords Methods: statistical; Cosmological parameters; Cosmology: observations, large-scale structure of, Universe
Publisher URL https://academic.oup.com/mnras/article/432/4/2654/993844
Copyright Statement © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

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Copyright Statement
© 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society





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