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We extend previous analyses of wide-angle correlations in the galaxy powerspectrum in redshift space to include all general relativistic effects. Thesegeneral relativistic corrections to the standard approach become important onlarge scales and at high redshifts, and they lead to new terms in thewide-angle correlations. We show that in principle the new terms can producecorrections of nearly 10 % on Gpc scales over the usual Newtonianapproximation. General relativistic corrections will be important for futurelarge-volume surveys such as SKA and Euclid, although the problem of cosmicvariance will present a challenge in observing this.

Beyond the plane-parallel and Newtonian approach: Wide-angle redshift distortions and convergence in general relativity