Possible implications of the Rubin-Ford effect

Details Possible implications of the Rubin-Ford effect Possible implications of the Rubin-Ford effect

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.259...31k&link_type=abstract

Nature, vol. 259, Jan. 1-8, 1976, p. 31-33.

Mathematics

Logic

20

Cosmology, Radial Velocity, Spiral Galaxies, Astronomical Maps, Compact Galaxies, Galactic Clusters, Radio Galaxies

Scientific paper

A test is conducted for the hypothesis that the anomaly in the distribution of radial velocities for Sc 1 galaxies in two nearby hemispheric regions, reported by Rubin et al. (1973), might be correlated with a noncosmological redshift in the centers of rich clusters of galaxies. A set of 'nearby' clusters of galaxies, 41 faint radio galaxies, and 77 compact galaxies is chosen from several catalogs and analyzed statistically for abnormal redshifts by testing for variations in Hubble modulus and mean apparent corrected magnitude. The differences in Hubble modulus for both radio and compact galaxies is found to be positive and highly significant. A number of possible causes of the Rubin-Ford effect are considered, and it is tentatively proposed that either light emitted by distant galaxies are redshifted when passing through clusters of galaxies or distant sources are more luminous when seem through intermediate clusters of galaxies which could act as gravitational lenses.

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