Enhanced mergers of galaxies in low-redshift clusters

Details Enhanced mergers of galaxies in low-redshift clusters Enhanced mergers of galaxies in low-redshift clusters

2006-08-30

arxiv.org/abs/astro-ph/0608672v1

Mon.Not.Roy.Astron.Soc.373:167-178,2006

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS; 14 pages with 13 figures

Scientific paper

10.1111/j.1365-2966.2006.11000.x

An ensemble cluster has been formed from a data set comprising a complete magnitude-limited sample of 680 giant galaxies (M(B) < -19) in 8 low-redshift clusters, normalised 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% or greater) of the infall population are found to be in interacting or merging systems characterised 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.

Affiliated with

Also associated with

No associations

Rating

Enhanced mergers of galaxies in low-redshift clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Enhanced mergers of galaxies in low-redshift clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced mergers of galaxies in low-redshift clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-75373