Using perturbative least action to reconstruct redshift-space distortions

Authors
Citation
Dm. Goldberg, Using perturbative least action to reconstruct redshift-space distortions, ASTROPHYS J, 552(2), 2001, pp. 413-426
Citations number
59
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
552
Issue
2
Year of publication
2001
Part
1
Pages
413 - 426
Database
ISI
SICI code
0004-637X(20010510)552:2<413:UPLATR>2.0.ZU;2-Y
Abstract
In this paper, we present a redshift-space reconstruction scheme that is an alogous to and extends the perturbative least action (PLA) method described by Goldberg & Spergel. We first show that this scheme is effective in reco nstructing even nonlinear observations. We then suggest that by varying the cosmology to minimize the quadrupole moment of a reconstructed density fie ld, it may be possible to lower the error bars on the redshift distortion p arameter, 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 t o realistic redshift surveys.