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Centro de Astrofísica da Universidade do Porto
22-26 August 2011, Porto, Portugal

 

Tests of Modified Gravity theories using Redshift-space distortion measurements from WiggleZ
Parkinson, David (University of Queensland)

The mysterious dark energy that drives the acceleration can be seen either as a failure of Einstein's theory of General Relativity, or the requirement of (yet another) dark fluid to reconcile the theory with observations. However, both explanations make similar or identical predictions for the distances as a function of redshift. In order to break this degeneracy new data is needed, such as measurements of the growth of structure on large scales by redshift-space distortions. WiggleZ has provided us with just such a data set to test these theories. I will describe the procedure for generating predictions for the different theories, the WiggleZ redshift-space distortion data set, and the constraints this data places on the different theories.