Year: 2011 Pages: 8
The best way to establish the existence of a non-cosmological redshift is to determine distances to galaxies using redshift independent distance indicators with small enough scatter to rule out large errors in the calculated distance. In this analysis the Ks-band Tully-Fisher relationship is used to determine distances to normal spiral galaxies. It is found that a number of spiral galaxies have deviations from Hubble\'s law ranging from 2500 km s-1 to 4000 km s-1. Several tests and comparisons demonstrate that these deviations are unlikely to be false deviations resulting from large Tully-Fisher distance errors. Therefore these excessively large deviations from the Hubble law support the possible existence of a non-cosmological redshift component in some normal spiral galaxies.