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Cluster galaxies 10 billion years ago

Published online by Cambridge University Press:  17 July 2013

V. Strazzullo ,
E. Daddi ,
R. Gobat  and
M. Onodera
V. Strazzullo
Affiliation:
CEA-Saclay, 91191 Gif sur Yvette, France email: veronica.strazzullo@cea.fr
E. Daddi
Affiliation:
CEA-Saclay, 91191 Gif sur Yvette, France email: veronica.strazzullo@cea.fr
R. Gobat
Affiliation:
CEA-Saclay, 91191 Gif sur Yvette, France email: veronica.strazzullo@cea.fr
M. Onodera
Affiliation:
ETH Zürich, 8093 Zürich, Switzerland
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Abstract

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Cl J1449+0856 is a spectroscopically confirmed galaxy cluster at z ~ 2. The detection of a faint, extended X-ray emission, suggestive of an already evolved, partially relaxed structure, puts this system among the most distant “established” clusters rather than in the realm of z≳2 proto-clusters. This gives us a chance of studying galaxies in an evolved overdense environment very close to their formation epoch, and in particular to trace the evolution of early-type galaxies in clusters back to ten billion years ago.

Keywords

Galaxies: clustersGalaxies: evolutionGalaxies: high-redshift
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S295: The intriguing life of massive galaxies , August 2012 , pp. 60
Copyright
Copyright © International Astronomical Union 2013