Poster Presentation Astronomical Society of Australia Annual Scientific Meeting including HWWS 2013

Morphological Transformation of Red Sequence Galaxies in High Redshift Galaxy Clusters (#211)

Pierluigi Cerulo 1 , Warrick J Couch 2 , Chris Lidman 2
  1. Swinburne University of Technology, Hawthorn, VIC, Australia
  2. Australian Astronomical Observatory, North Ryde, NSW, Australia

I present the results of a detailed analysis of the morphological properties of red sequence galaxies in a X-ray detected cluster at redshift z=0.98. Overall, the red sequence is dominated by elliptical and S0 galaxies. The fraction of S0s decreases at faint luminosities, where disc-dominated systems tend to become more frequent. From the comparison with a sample of local galaxy clusters, I discuss possible scenarios for the evolution of galaxies of different morphologies. I finally show the ongoing application of the analysis developed for this cluster to a sample of galaxy clusters at 0.8 < z < 1.5 and its implications for the investigation of the environmental drivers of galaxy evolution.