Galaxy Morphological Segregation in Clusters: Local vs Global Conditions

DOMÍNGUEZ, M.; MURIEL, H.; LAMBAS, D. G.

San Francisco

Congreso; ASP Conference Series; 2002

ASP

We study the relative fraction of galaxy morphological types in clusters, as a function of different parameters: local galaxy density, and cluster projected total mass density.  Our results suggest that the morphological segregation in clusters is controlled by the local galaxy density in the outskirts.  On the other hand, the global projectedmass density, shows the strongest correlation with the fraction of morphological types in the central high density region, with negligible dependence on the local galaxy density.