Abstract
In the first paper in this series, a basic model was developed, for individual galaxies, consisting of two expanding opposed streams of material differing systematically in redshift. In this paper, galaxies in pairs and groups are shown to manifest no evidence of gravitational interaction. Redshift differentials between pairs of galaxies and between galaxies in clusters are found to take on preferred values which are various multiples of a basic 72.5 km/sec. There is also direct evidence that the redshift periodicity phases together between groups to imply that there is no large-scale motion between clusters of galaxies. The various mass discrepancies or peculiarities arising from a dynamical interpretation of differential redshifts are also shown to be of a form that no gravitational interaction and no significant motion require.
