Structures in Galaxy Clusters
Abstract
The analysis of the presence of substructures in 16 well-sampled clusters of galaxies suggests a stimulating hypothesis: Clusters could be classified as unimodal or bimodal, on the basis of the subclump distribution in the three-dimensional space of positions and velocities. The dynamic study of these clusters shows that their fundamental characteristics, in particular the virial masses, are not severely biased by the presence of subclustering if the system considered is bound.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1994
- DOI:
- 10.1086/173833
- arXiv:
- arXiv:astro-ph/9309057
- Bibcode:
- 1994ApJ...423..539E
- Keywords:
-
- GALAXIES: CLUSTERING;
- Astrophysics
- E-Print:
- (16 pages in LATEX, 4 tables in LATEX are at the end of the file, the figures not included are available upon request), REF SISSA 158/93/A