Velocity Fields from IRAS-PSCz survey
  We present a self-consistent nonparametric model of the cosmic velocity field based on the spatial distribution of IRAS galaxies in the recently completed all-sky PSC$z$ redshift survey. The most streaking feature of the PSCz model velocity field is a coherent large-scale streaming motion along the Perseus Pisces, Local Supercluster, Great Attractor and Shapley Concentration baseline, with no evidence for a backinfall into the Great Attractor region. A likelihood analysis has been performed to measure $\beta$. We have obtained $\beta =0.6^{+0.22}_{-0.15}$ (1-$\sigma$), in agreement with other recent determinations. 
E. Branchini, C.S. Frenk L. Teodoro, I. Schmoldt, G. Efstathiou, W.   Saunders, S.D.M. White, M. Rowan-Robinson, W. Sutherla...