A spherical harmonic approach to redshift distortion and a measurement of Formula from the 1.2-Jy IRAS Redshift Survey

Abstract

We present a formalism for analysing redshift distortions based on a\nspherical harmonic expansion of the density field. We use a maximum likelihood\nestimator for the combination of density and bias parameters, $\\Omega^0.6/b$.\nWe test the method with $N$-body simulations and apply it to the 1.2 Jy IRAS\nredshift survey.\n