Using Perturbative Least Action to Reconstruct Redshift Space Distortions

Details Using Perturbative Least Action to Reconstruct Redshift Space Distortions Using Perturbative Least Action to Reconstruct Redshift Space Distortions

2000-08-17

arxiv.org/abs/astro-ph/0008266v1

Astrophys.J.552:413,2001

Astronomy and Astrophysics

Astrophysics

34 Pages LaTeX, including 10 postscript figures. Submitted to Astrophysical Journal

Scientific paper

10.1086/320556

In this paper, we present a redshift space reconstruction scheme which is analogous to and extends the Perturbative Least Action (PLA) method described by Goldberg & Spergel (2000). We first show that this scheme is effective in reconstructing even nonlinear observations. We then suggest that by varying the cosmology to minimize the quadrupole moment of a reconstructed density field, it may be possible to lower the errorbars on the redshift distortion parameter, $\beta$ as well as to break the degeneracy between the linear bias parameter, $b$, and $\Omega_M$. Finally, we discuss how PLA might be applied to realistic redshift surveys.

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