Top panel: the power spectrum of the SDSS PV data compared to the average from sets of simulations with similar large-scale structure and selection effects, with and without the presence of BAOs. Our method for populating the simulations with mock galaxies is tuned to this data, so we also report the χ ² difference for the two sets of simulations. Bottom panel: the average of the ratio of the power spectra for our BAO and no-BAO simulations. For reference, the black dotted line shows the linear theory model smoothed with a nonlinear damping of 13 ﹩{h}_{75}^{-1}﹩ Mpc (see Section 2.1.1), which clearly demonstrates that the BAO is being suppressed in the no-BAO simulations. Note that the linear theory model has not been corrected for selection effects and galaxy bias so is not expected to match the amplitude of the data.