Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...284..801a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 284, no. 3, p. 801-809
Astronomy and Astrophysics
Astrophysics
18
Density (Number/Volume), Galactic Clusters, Luminosity, Morphology, Radii, Spatial Distribution, Spiral Galaxies, Velocity, Monte Carlo Method, Simulation, Statistical Analysis
Scientific paper
A Monte Carlo method for measuring the significance of possible space, velocity and/or luminosity segregation among galaxies of different Hubble types is presented. It relies on five statistical tests. This method is applied to a sample of early-type galaxies with reliable morphological classifications in the inner region of the Perseus cluster. A strong spatial segregation is detected: ellipticals are displaced eastward with respect to the cluster center, lenticulars northward, barred lenticualrs southward, while disky ellipticals occupy the whole inner region of the cluster. This non-uniform distribution of morphological types is interpreted as an indication that the Perseus cluster, although claimed relaxed, is in reality not virialized and dynamically young. No statistically significant morphology-density or morphology-radius relations are detected showing that the primary source of the morphological segregation in this cluster is tied to the non-uniform spatial distribution of Hubble types and not to the local density or the distance from the cluster center. The number of spirals in the inner region of Perseus is under-estimated in the literature by a factor 2 or 3. Finally, the bright ends of the luminosity functions of boxy and disky ellipticals do not differ statistically.
No associations
LandOfFree
Morphological segregation of galaxies in clusters. 1: The non-uniform distribution of types in the inner region of Perseus 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 Morphological segregation of galaxies in clusters. 1: The non-uniform distribution of types in the inner region of Perseus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Morphological segregation of galaxies in clusters. 1: The non-uniform distribution of types in the inner region of Perseus will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1254506