The Large Peculiar Velocity of the cD Galaxy in Abell 3653

Details The Large Peculiar Velocity of the cD Galaxy in Abell 3653 The Large Peculiar Velocity of the cD Galaxy in Abell 3653

2006-02-06

arxiv.org/abs/astro-ph/0602106v1

Mon.Not.Roy.Astron.Soc.368:651,2006; Mon.Not.Roy.Astron.Soc.368:651-658,2006

Astronomy and Astrophysics

Astrophysics

16 pages, including 7 figures and a long table. Accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2006.10131.x

We present a catalogue of galaxies in Abell 3653 from observations made with the 2dF spectrograph at the Anglo-Australian Telescope. Of the 391 objects observed, we find 111 are bone-fide members of Abell 3653. We show that the cluster has a velocity of cz = 32214 +/- 83 km/s (z=0.10738 +/- 0.00027), with a velocity dispersion typical of rich, massive clusters of sigma_{cz} = 880^{+66}_{-54}. We find that the cD galaxy has a peculiar velocity of 683 +/- 96 km/s in the cluster restframe - some 7sigma away from the mean cluster velocity, making it one of the largest and most significant peculiar velocities found for a cD galaxy to date. We investigate the cluster for signs of substructure, but do not find any significant groupings on any length scale. We consider the implications of our findings on cD formation theories.

Affiliated with

Also associated with

No associations

Rating

The Large Peculiar Velocity of the cD Galaxy in Abell 3653 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 The Large Peculiar Velocity of the cD Galaxy in Abell 3653, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Large Peculiar Velocity of the cD Galaxy in Abell 3653 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-730431