Other
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103.1457b&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 103, no. 5, May 1992, p. 1457-1469. Research supported by Digital Equipment Corp.
Other
21
Galactic Clusters, Galactic Nuclei, Interacting Galaxies, Velocity Distribution, Galactic Evolution, Luminosity, Red Shift
Scientific paper
Redshifts have been obtained for all of the multiple nuclei out to a redshift of 0.07 in the listing of Hoessel and Schneider (1985), and the relationships between nucleus velocity and other properties of the nuclei and clusters are investigated. It is found that velocity correlates with projected separation from the brightest cluster galaxies (BCGs). This indicates that the nuclei have a range of orbit sizes, with the highest velocity nuclei following the largest orbits. The new data provide further evidence for an apparent unexplained lack of low stellar dispersion nuclei moving with high velocities, but indicate that there is no shortage of low-velocity nuclei around the brightest BCGs, as had been previously reported. The velocities of the nuclei increase with cluster dispersion in a manner consistent with the null hypothesis that the nuclei are normal cluster galaxies.
Blakeslee John P.
Tonry John L.
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