REDSHIFT DISTORTIONS AND CLUSTERING IN THE PSCZ SURVEY
W.E. BALLINGER (a), A.N. TAYLOR (b), A.F. HEAVENS (b), H. TADROS (a)
(a) Department of Physics, Astrophysics, Keble Road, Oxford OX1 3RH, England
(b) Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, Scotland

Abstract:
We have constrained the redshift-distortion parameter $\beta \equiv \Omega^{0.6}/b$ and the real-space power spectrum of the IRAS PSCz survey using a spherical-harmonic redshift-distortion analysis combined with a data compression method which is designed to deal with correlated parameters. Our latest result, $\beta=0.4 \pm 0.1$, strongly rules out $\beta=1$