Other
Scientific paper
Mar 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...204..642r&link_type=abstract
Astrophysical Journal, vol. 204, Mar. 15, 1976, pt. 1, p. 642-648.
Other
216
Collisions, Dynamic Models, Galactic Clusters, Galactic Evolution, Interacting Galaxies, Astronomical Models, Cosmology, Intergalactic Media, Mass Distribution, Space Debris, Spatial Distribution, Velocity Distribution
Scientific paper
Results of a previous analysis of collisions between two galaxies near the center of a dense cluster of galaxies are applied to clusters as a whole. Effects of collisions on the galaxies within a dense cluster are analyzed for the cases of evolution of a homogeneous cluster of equal-mass galaxies, evolution of a test galaxy on a fixed background, and evolution of a cluster mass distribution. The debris hypothesis for the formation of cD galaxies is examined critically, and the suggestion that clusters of galaxies form a density or a dynamical age distribution is discussed. It is concluded that: (1) galaxies with velocity dispersions of about 180 km/s and radii of 100 pc or more suffer substantial changes due to collisions in the centers of dense clusters; (2) if all the mass at the center of a dense cluster is initially contained in isothermal galaxies with normal velocity dispersions, 90% of that mass will be liberated in a Hubble time; (3) the internal velocity dispersions of the galaxies should decrease by a factor of two; (4) predictions of the debris hypothesis appear to be generally in agreement with observations; and (5) Oemler's (1974) classification scheme is a dynamical age sequence.
No associations
LandOfFree
Collisions of galaxies in dense clusters. II - Dynamical evolution of cluster galaxies 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 Collisions of galaxies in dense clusters. II - Dynamical evolution of cluster galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collisions of galaxies in dense clusters. II - Dynamical evolution of cluster galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1216494