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Geometric and dynamic distortions in anisotropic galaxy clustering · Around

2013

Geometric and dynamic distortions in anisotropic galaxy clustering

Blazek, Jonathan, Seljak, Uroš, Vlah, Zvonimir et al.

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We examine the signature of dynamic (redshift-space) distortions and geometric distortions (including the Alcock-Paczynski effect) in the context of the galaxy power spectrum measured in upcoming galaxy redshift surveys.

Information comes from both the baryon acoustic oscillation (BAO) feature and the broadband power spectrum shape.
Accurate modeling is required to extract this information without introducing systematic biases in the result.
We consider an analytic model for the power spectrum of dark matter halos in redshift space, based on the distribution function expansion, and compare with halo clustering measured in N-body simulations.

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