Comparing the SBF survey velocity field with the gravity field from redshift surveys

We compare the predicted local peculiar velocity field from the IRAS 1.2 Jy flux-limited redshift survey and the Optical Redshift Survey (ORS) to the measured peculiar velocities from the recently completed SBF Survey of Galaxy Distances. The analysis produces a value of beta = Omega(0.6)/b for the redshift surveys, where b is the linear biasing factor, and a tie to the Hubble how, i.e., a value of Ho, for the SBF Survey. There is covariance between these parameters, but we find good fits with H-0 approximate to 74 km s(-1) Mpc(-1) for the SBF distances, beta(I) approximate to 0.44 for the IRAS survey predictions, and beta(o) approximate to 0.3 for the ORS. The small-scale velocity error sigma(nu) similar to 200 kms(-1) is similar to, though slightly larger than, the value obtained in our parametric how modeling with SEP.