Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-06-27
Astronomy and Astrophysics
Astrophysics
Carnegie Observatories Astrophysics Series, Vol. 3: Clusters of Galaxies: Probes of Cosmological Structure and Galaxy Evolutio
Scientific paper
Are the morphologies of galaxies imprinted during an early and rapid formation epoch or are they due to environmental processes that subsequently transform galaxies between morphological classes? Recent numerical simulations demonstrate that the cluster environment can change the morphology of galaxies, even at a couple of cluster virial radii. The gravitational and hydrodynamical mechanisms that could perform such transformations were proposed in the 1970's, before the key observational evidence for environmental dependencies - the morphology-density relation and the Butcher-Oemler effect.
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