Structures in Galaxy Clusters
Astrophysics
2009-10-22 v1
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 to the sub-clump distribution in the {\em 3-D} 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.
Cite
@article{arxiv.astro-ph/9309057,
title = {Structures in Galaxy Clusters},
author = {E. Escalera and A. Biviano and M. Girardi and G. Giuricin and F. Mardirossian and A. Mazure and M. Mezzetti},
journal= {arXiv preprint arXiv:astro-ph/9309057},
year = {2009}
}
Comments
(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