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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