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Galaxy Evolution in Overdense Environments at High Redshift: Passive Early-type Galaxies in a Cluster at z ~ 2

Authors :
Marcella Carollo
A. Finoguenov
A. Cimatti
Mark Dickinson
Alvio Renzini
Masato Onodera
E. Daddi
V. Strazzullo
Raphael Gobat
R.-R. Chary
Nobuo Arimoto
Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112))
Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)
Institute for Astronomy [Zürich]
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)
National Optical Astronomy Observatory (NOAO)
INAF - Osservatorio Astronomico di Padova (OAPD)
Istituto Nazionale di Astrofisica (INAF)
National Astronomical Observatory of Japan (NAOJ)
Dipartimento di Astronomia
Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)
Department of Physics [Helsinki]
Falculty of Science [Helsinki]
University of Helsinki-University of Helsinki
Division of Physics, Mathematics and Astronomy [Pasadena]
California Institute of Technology (CALTECH)
ANR-08-JCJC-0008,UPGAL(2008)
European Project: 240039,EC:FP7:ERC,ERC-2009-StG,UPGAL(2009)
Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Helsingin yliopisto = Helsingfors universitet = University of Helsinki-Helsingin yliopisto = Helsingfors universitet = University of Helsinki
Strazzullo V.
Gobat R.
Daddi E.
Onodera M.
Carollo M.
Dickinson M.
Renzini A.
Arimoto N.
Cimatti A.
Finoguenov A.
Chary R.-R.
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich)
NOAO
Università di Bologna [Bologna] (UNIBO)
UPGAL
Source :
The Astrophysical Journal, The Astrophysical Journal, American Astronomical Society, 2013, 772 (2), pp.17. ⟨10.1088/0004-637X/772/2/118⟩, The Astrophysical Journal, 2013, 772 (2), pp.17. ⟨10.1088/0004-637X/772/2/118⟩
Publication Year :
2013
Publisher :
American Astronomical Society, 2013.

Abstract

We present a study of galaxy populations in the central region of the IRAC-selected, X-ray detected galaxy cluster Cl J1449+0856 at z=2. Based on a sample of spectroscopic and photometric cluster members, we investigate stellar populations and morphological structure of cluster galaxies over an area of ~0.7Mpc^2 around the cluster core. The cluster stands out as a clear overdensity both in redshift space, and in the spatial distribution of galaxies close to the center of the extended X-ray emission. The cluster core region (r<br />17 pages, 13 figures, ApJ in press

Subjects

Subjects :
galaxies: high redshift
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Population
FOS: Physical sciences
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Spatial distribution
01 natural sciences
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
0103 physical sciences
Cluster (physics)
Galaxy formation and evolution
education
010303 astronomy & astrophysics
Galaxy cluster
Astrophysics::Galaxy Astrophysics
Physics
education.field_of_study
010308 nuclear & particles physics
Cosmology: observations, Galaxies: high-redshift, Galaxies: statistics, Large-scale structure of Universe
Astronomy and Astrophysics
Billion years
Redshift
Galaxy
[PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
Space and Planetary Science
galaxies: stellar
galaxies: structure
[SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA]
galaxies: evolution
Astrophysics - Cosmology and Nongalactic Astrophysics
galaxies: clusters (Cl J1449+0856)

Details

Language :
English
ISSN :
0004637X and 15384357
Database :
OpenAIRE
Journal :
The Astrophysical Journal, The Astrophysical Journal, American Astronomical Society, 2013, 772 (2), pp.17. ⟨10.1088/0004-637X/772/2/118⟩, The Astrophysical Journal, 2013, 772 (2), pp.17. ⟨10.1088/0004-637X/772/2/118⟩
Accession number :
edsair.doi.dedup.....10870a9c3e62aba4652ea00909509687

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