A nearby group of galaxies with a large residual velocity relative to the mean Hubble flow

Details A nearby group of galaxies with a large residual velocity relative to the mean Hubble flow A nearby group of galaxies with a large residual velocity relative to the mean Hubble flow

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..334j&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, June 1981, p. 334-337.) Soviet Astronomy Letters, vol. 7, May-June 1981, p. 185-187.

Astronomy and Astrophysics

Astronomy

Cosmology, Galactic Clusters, Galaxies, Hubble Diagram, Radial Velocity, H Lines, Red Shift

Scientific paper

The Tully-Fischer method is applied to investigate peculiarities in cosmological expansion. Four galaxies in Coma Berenices and Canes Venatici at distances of 4-6 Mpc are observed as forming a loose group whose mean velocity exceeds the regular Hubble flow by 360 + or 60 km/s. When the residual velocity is treated as a conventional peculiar velocity within the local supercluster, the value of the peculiar-velocity dispersion should be raised from not greater than 50 to not less than 100 km/s. Due to a sharp departure from a generally calm expansion in the background, the possibility of an anomalous redshift cannot be ruled out.

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