Early-Type galaxies at z ~ 1.3. III. On the dependence of Formation Epochs and Star Formation Histories on Stellar Mass and Environment

Abstract

We study the environmental dependence of stellar population properties at z ~ 1.3. We derive galaxy properties (stellar masses, ages and star formation histories) for samples of massive, red, passive early-type galaxies in two high-redshift clusters, RXJ0849+4452 and RXJ0848+4453 (with redshifts of z = 1.26 and 1.27, respectively), and compare them with those measured for the RDCS1252.9-2927 cluster at z=1.24 and with those measured for a similarly mass-selected sample of field contemporaries drawn from the GOODS-South Field. Robust estimates of the aforementioned parameters have been obtained by comparing a large grid of composite stellar population models with extensive 8-10 band photometric coverage, from the rest-frame far-ultraviolet to the infrared. We find no variations of the overall stellar population properties among the different samples of cluster early-type galaxies. However, when comparing cluster versus field stellar population properties we find that, even if the (star formation weighted) ages are similar and depend only on galaxy mass, the ones in the field do employ longer timescales to assemble their final mass. We find that, approximately 1 Gyr after the onset of star formation, the majority (75%) of cluster galaxies have already assembled most (> 80%) of their final mass, while, by the same time, fewer (35%) field ETGs have. Thus we conclude that while galaxy mass regulates the timing of galaxy formation, the environment regulates the timescale of their star formation histories.

27 pages, 14 figures, Resubmitted to ApJ

References in corpus (21)

• Distant Radio Galaxies and their Environments
• The Great Observatories Origins Deep Survey - VLT/VIMOS Spectroscopy in the GOODS-South Field: Part II
• A Spitzer-Selected Galaxy Cluster at z=1.62
• Stellar populations of early-type galaxies in different environments II. Ages and metallicities
• Evolution of the Color-Magnitude Relation in Galaxy Clusters at z ~1 from the ACS Intermediate Redshift Cluster Survey
• The First Appearance of the Red Sequence of Galaxies in Proto-Clusters at 2<~z<~3
• Deep U band and R imaging of GOODS-South: Observations,data reduction and first results
• The Great Observatories Origins Deep Survey - VLT/ISAAC Near-Infrared Imaging of the GOODS-South Field
• The Star Formation Epoch of the Most Massive Early-Type Galaxies
• Multi-wavelength study of XMMU J2235.3-2557: the most massive galaxy cluster at z > 1
• Clusters at Half Hubble Time: Galaxy Structure and Colors in RXJ0152.7-1357 and MS1054-03
• The spectroscopically confirmed X-ray cluster at z=1.62 with a possible companion in the Subaru/XMM-Newton deep field
• The star formation history of early-type galaxies as a function of mass and environment
• Cluster galaxies in XMMU J2235-2557: galaxy population properties in most massive environments at z~1.4
• Evolution of the Color-Magnitude relation in High-Redshift Clusters: Early-type Galaxies in the Lynx Supercluster at z~1.26
• HAWK-I imaging of the X-ray luminous galaxy cluster XMMU J2235.3-2557: The red sequence at z=1.39
• The evolution of early and late type galaxies in the COSMOS up to z~1.2
• Comparing dynamical and photometric-stellar masses of early-type galaxies at z ~ 1
• Star formation histories of early-type galaxies at z = 1.2 in cluster and field environments
• The Red Sequence of High-Redshift Clusters: a Comparison with Cosmological Galaxy Formation Models
• The Environmental Dependence of Galaxy Properties at z=2

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• Early-type galaxies at z = 1.3. I. The Lynx supercluster: cluster and groups at z=1.3. Morphology and color-magnitude relation
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• The GOGREEN survey: Post-infall environmental quenching fails to predict the observed age difference between quiescent field and cluster galaxies at z>1
• On the intermediate-redshift central stellar mass-halo mass relation, and implications for the evolution of the most massive galaxies since z~1
• Galaxy Zoo: The interplay of quenching mechanisms in the group environment
• The Galaxy Stellar Mass Function of X-ray detected groups: environmental dependence of galaxy evolution in the COSMOS survey
• Cluster and field elliptical galaxies at z~1.3. The marginal role of the environment and the relevance of the galaxy central regions
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• VIS3COS: III. environmental effects on the star formation histories of galaxies at z~0.8 seen in [OII], H$\delta$, and Dn4000
• The Morphological Transformation of Red Sequence Galaxies in Clusters since $z\sim 1$
• Evidence for the Universality of Properties of Red-Sequence Galaxies in X-ray- and Red-Sequence-Selected Clusters at z ~ 1
• Star-forming fractions and galaxy evolution with redshift in rich X-ray-selected galaxy clusters
• Morphology with Light Profile Fitting of Confirmed Cluster Galaxies at z=0.84
• The submillimetre view of massive clusters at z~0.8-1.6
• Early-Type Galaxy Star Formation Histories in Different Environments
• Mass-Richness relations for X-ray and SZE-selected clusters at $0.4<z<2.0$ as seen by $Spitzer$ at 4.5$\mu$m
• HELP: star formation as function of galaxy environmentwith Herschel
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• A Multi-Wavelength Study of Low Redshift Cluster of Galaxies II. Environmental Impact on Galaxy Growth
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