Star formation histories of early-type galaxies at z = 1.2 in cluster and field environments

@article{Gobat2008StarFH,
  title={Star formation histories of early-type galaxies at z = 1.2 in cluster and field environments},
  author={R. Gobat and P. Rosati and V. Strazzullo and A. Rettura and R. Demarco and M. Nonino},
  journal={Astronomy and Astrophysics},
  year={2008},
  volume={488},
  pages={853-860}
}
We derive the star formation histories of early-type galaxies at z � 1.2 in both low and high density environments. To this purpose, we compare the co-added spectroscopic and 8–9 band photometric data of 43 mass selected early-type galaxies in the massive cluster RDCS J1252.9-2927 and the GOODS/CDF-S field with a large grid of composite stellar population models based on the Bruzual & Charlot templates. We find that the cluster early-type galaxies formed the bulk of their stars approximately 0… Expand
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