NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-24 T03:51:11 PDT
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For refcode 2006MNRAS.373..167M:
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NED Abstract

Copyright by Royal Astronomical Society. 2006MNRAS.373..167M Enhanced mergers of galaxies in low-redshift clusters C. Moss Abstract. An ensemble cluster has been formed from a data set comprising a complete magnitude-limited sample of 680 giant galaxies (M^0^_B_ -19) in eight low-redshift clusters, normalized by the velocity dispersions and virial radii for the early-type cluster populations. Distinct galaxy populations have been identified, including an infall population. A majority (50-70 per cent or greater) of the infall population are found to be in interacting or merging systems characterized by slow gravitational encounters. The observed enhancement of galaxy-galaxy encounters in the infall population compared to the field can be explained by gravitational shocking. It is shown that disc galaxy mergers in the infall population integrated over the estimated lifetime of the cluster (10 Gyr) can readily account for the present cluster S0 population. Key words: galaxies: clusters: general, galaxies: evolution, galaxies: interactions
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