The WiggleZ Dark Energy Survey: mapping the distance-redshift relation with baryon acoustic oscillations

被引：782

作者：

Blake, Chris ^{[1
]}

Kazin, Eyal A. ^{[2
]}

Beutler, Florian ^{[3
]}

Davis, Tamara M. ^{[4
,5
]}

Parkinson, David ^{[4
]}

Brough, Sarah ^{[6
]}

Colless, Matthew ^{[6
]}

Contreras, Carlos ^{[1
]}

Couch, Warrick ^{[1
]}

Croom, Scott ^{[7
]}

Croton, Darren ^{[1
]}

Drinkwater, Michael J. ^{[4
]}

Forster, Karl ^{[8
]}

Gilbank, David ^{[9
]}

Gladders, Mike ^{[10
]}

Glazebrook, Karl ^{[1
]}

Jelliffe, Ben ^{[7
]}

Jurek, Russell J. ^{[11
]}

Li, I-hui ^{[1
]}

Madore, Barry ^{[12
]}

Martin, D. Christopher ^{[8
]}

Pimbblet, Kevin ^{[13
]}

Poole, Gregory B. ^{[1
]}

Pracy, Michael ^{[1
,14
]}

Sharp, Rob ^{[6
,14
]}

Wisnioski, Emily ^{[1
]}

Woods, David ^{[15
]}

Wyder, Ted K. ^{[8
]}

Yee, H. K. C. ^{[16
]}

机构：

[1] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

[2] NYU, Ctr Cosmol & Particle Phys, New York, NY 10003 USA

[3] Univ Western Australia, Int Ctr Radio Astron Res, Perth, WA 6009, Australia

[4] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

[5] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen O, Denmark

[6] Australian Astron Observ, Epping, NSW 1710, Australia

[7] Univ Sydney, Sch Phys, Sydney Inst Astron, Sydney, NSW 2006, Australia

[8] CALTECH, Pasadena, CA 91125 USA

[9] Univ Waterloo, Dept Phys & Astron, Astrophys & Gravitat Grp, Waterloo, ON N2L 3G1, Canada

[10] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[11] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia

[12] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA

[13] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia

[14] Australian Natl Univ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia

[15] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[16] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 418卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

surveys; cosmological parameters; distance scale; large-scale structure of Universe; DIGITAL SKY SURVEY; HUBBLE-SPACE-TELESCOPE; SPECTROSCOPIC TARGET SELECTION; LUMINOUS RED GALAXIES; MICROWAVE BACKGROUND ANISOTROPIES; LARGE-SCALE STRUCTURE; BVRI LIGHT CURVES; POWER-SPECTRUM; IA SUPERNOVAE; COSMOLOGICAL CONSTANT;

D O I：

10.1111/j.1365-2966.2011.19592.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of the baryon acoustic peak at redshifts z= 0.44, 0.6 and 0.73 in the galaxy correlation function of the final data set of the WiggleZ Dark Energy Survey. We combine our correlation function with lower redshift measurements from the 6-degree Field Galaxy Survey and Sloan Digital Sky Survey, producing a stacked survey correlation function in which the statistical significance of the detection of the baryon acoustic peak is 4.9s relative to a zero-baryon model with no peak. We fit cosmological models to this combined baryon acoustic oscillation (BAO) data set comprising six distanceredshift data points, and compare the results with similar cosmological fits to the latest compilation of supernovae (SNe) and cosmic microwave background (CMB) data. The BAO and SNe data sets produce consistent measurements of the equation-of-state w of dark energy, when separately combined with the CMB, providing a powerful check for systematic errors in either of these distance probes. Combining all data sets we determine w=-1.03 +/- 0.08 for a flat universe, consistent with a cosmological constant model. Assuming dark energy is a cosmological constant and varying the spatial curvature, we find Ok=-0.004 +/- 0.006.

引用

页码：1707 / 1724

页数：18

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