Astronomy and Astrophysics – Astrophysics
Scientific paper
1993-09-30
Astrophys.J. 423 (1994) 539
Astronomy and Astrophysics
Astrophysics
(16 pages in LATEX, 4 tables in LATEX are at the end of the file, the figures not included are available upon request), REF SI
Scientific paper
10.1086/173833
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.
Biviano Andrea
Escalera Eric
Girardi Maria
Giuricin Giuliano
Mardirossian Fabio
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