Redshift-Space Distortions and f(z) from Group-Galaxy Correlations. Issue Volume 11:Issue S308(2015) (12th October 2016) - Mohammad, F. G.
Abstract: We investigate the accuracy achievable on measurements of the the growth rate of structure f ( z ) using redshift-space distortions (RSD), when (a) these are measured on the group-galaxy cross correlation function; (b) the latter is expanded over a modified version of the conventional spherical armonics, " truncated multipole moments ". Simulation results give first indications that this combination can push systematic errors on f ( z ) below 3%, using scales r ⩾ 10 h −1 Mpc.