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WiggleZ confirms the Big Picture of the Universe

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Published on Sep 17, 2012

The WiggleZ Dark Energy Survey: the transition to large-scale cosmic homogeneity

The standard model of cosmology is based on the assumption that the Universe is homogeneous on large scales. "Homogeneous" means that statistical properties of the Universe, such as density, are the same everywhere. However, it is important to verify this assumption with observation and to determine the scale of homogeneity. We used the WiggleZ Dark Energy Survey to make the largest-volume measurement to date of large-scale homogeneity in the distribution of galaxies.

The WiggleZ team was formed in 2004 to make the first precision measurement of baryon acoustic oscillations in the distribution of galaxies ("the baryon wiggles") at high-redshift.

WiggleZ institutions:
Swinburne University of Technology
University of Queensland
Australian Astronomical Observatory
University of Sydney
California Institute of Technology
Waterloo University
University of Chicago
Australia Telescope National Facility
Monash University
Australian National University
University of British Columbia
University of Toronto

Video production: Dr Wiebke Ebeling, CAASTRO Education & Outreach (http://www.caastro.org)

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