Early-type galaxy formation: Understanding the role of the environment

Ricardo Demarco, Alessandro Rettura, Chris Lidman, Julie Nantais, Yara Jaffe, Piero Rosati

Research output: Contribution to journalArticlepeer-review


One of the most characteristic features of galaxy clusters is the so-called "red sequence" (RS) of early-type galaxies. Since these galaxies are, in general, devoid of gas and dust, their red colors are mainly a consequence of their passive nature. However, the physical mechanisms responsible for quenching their star formation, thus originating the RS, are poorly understood. Environmental effects should play a significant role in the formation of the RS by transforming the observed galaxy properties from late to early-type ones. In this respect, we have initiated a KMOS program aimed at studying the kinematical structure of cluster galaxies at 0.8 < z < 1.7 in an effort to disentangle the physical mechanisms responsible for cluster galaxy evolution and the formation of the RS.

Original languageEnglish
Pages (from-to)291-292
Number of pages2
JournalProceedings of the International Astronomical Union
Publication statusPublished - 2014


  • Galaxies: clusters of galaxies
  • Galaxies: early-type
  • Galaxies: formation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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