Morphological Evolution of Cluster Galaxies

Details Morphological Evolution of Cluster Galaxies Morphological Evolution of Cluster Galaxies

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxac..17...98o&link_type=abstract

Galaxy Evolution: Theory & Observations (Eds. Vladimir Avila-Reese, Claudio Firmani, Carlos S. Frenk & Christine Allen) Revista

Mathematics

Logic

Galaxies: Formation, Galaxies: Evolution, Galaxies: Interactions

Scientific paper

We investigate environmental effects on morphology evolution of bright cluster galaxies (L > L[*]) in a Lambda -dominated cold dark matter universe using a combination of N-body simulations and semi-analytic (SA) model. We normalize our model parameters to reproduce the properties of local galaxies, and then we study how ram pressure stripping (RPS) and small starburst triggered by a minor merger (minor burst) affect the morphologies of cluster galaxies. We find that the morphological fraction of galaxies with intermediate bulge-to-total luminosity ratios (B/Ts) cannot be reproduced and the effect of the RPS is negligible unless we consider the minor burst.

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