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.



Titolo: Structures in Galaxy Clusters
Autori: 
GIRARDI, MARISA
MARDIROSSIAN, FABIO
MEZZETTI, MARINO
mostra contributor esterni 
Data di pubblicazione: 1994
Rivista: 
THE ASTROPHYSICAL JOURNAL  
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.
Handle: http://hdl.handle.net/11368/1695141
Digital Object Identifier (DOI): http://dx.doi.org/10.1086/173833
URL: http://adsabs.harvard.edu/abs/1994ApJ...423..539E
Appare nelle tipologie:1.1 Articolo in Rivista

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