Color Bimodality, Role of the Environment, Mass Assembly and Star Formation History of Galaxies in Clusters of Galaxies, up to z>1

Details Color Bimodality, Role of the Environment, Mass Assembly and Star Formation History of Galaxies in Clusters of Galaxies, up to z>1 Color Bimodality, Role of the Environment, Mass Assembly and Star Formation History of Galaxies in Clusters of Galaxies, up to z>1

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confq..70a&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 70-70"

Physics

Scientific paper

In this talk we present new detailed results on morphology, mass assembly history, role of environment and colour bimodality of galaxies in the optically selected, x-ray dim, cluster RzCS 052 at z=1.02, as derived from XMM, HST, Spitzer, optical and spectroscopic data, supplemented by a coarser analysis of a large sample of about 40 clusters, from z=0 to z=1.22. Red galaxies at high redshift differ from their local cousins by age only, whereas something, in addition to age-related effects, is altering the colour of blue galaxies. Data allow rule out various physical mechanisms.

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