Data and 2D scaling relations for galaxies in Abell 1689: a hint of size evolution at z~0.2

Abstract

{abridged} We present imaging and spectroscopy of Abell 1689 (z=0.183) from GEMINI/GMOS-N and HST/ACS. We measure integrated photometry from the GMOS g' and r' images (for 531 galaxies) and surface photometry from the HST F625W image (for 43 galaxies) as well as velocities and velocity dispersions from the GMOS spectra (for 71 galaxies). We construct the Kormendy relation (KR), Faber-Jackson relation (FJR) and colour-magnitude relation (CMR) for early-type galaxies in Abell 1689 using this data and compare them to those of the Coma cluster. We measure the intrinsic scatter of the CMR in Abell 1689 to be 0.054 \pm 0.004 mag which places degenerate constraints on the ratio of the assembly timescale to the time available (beta) and the age of the population. Making the assumption that galaxies in Abell 1689 will evolve into those of Coma over an interval of 2.26 Gyr breaks this degeneracy and limits beta to be > 0.6 and the age of the red sequence to be > 5.5 Gyr (formed at z > 0.55). Without corrections for size evolution but accounting for magnitude cuts and selection effects, the KR & FJR are inconsistent and disagree at the 2 sigma level regarding the amount of luminosity evolution in the last 2.26 Gyr. However, after correcting for size evolution the KR & FJR show similar changes in luminosity (0.22 \pm 0.11 mag) that are consistent with the passive evolution of the stellar populations from a single burst of star formation 10.2 \pm 3.3 Gyr ago (z = 1.8+inf-0.9). Thus the changes in the KR, FJR & CMR of Abell 1689 relative to Coma all agree and suggest old galaxy populations with little or no synchronisation in the star formation histories. Furthermore, the weak evidence for size evolution in the cluster environment in the last 2.26 Gyr places interesting constraints on the possible mechanisms at work, favouring harassment or secular processes over merger scenarios.

Accepted for publication in MNRAS

References in corpus (23)

• The SAURON project -- IX. A kinematic classification for early-type galaxies
• The ATLAS3D project - III. A census of the stellar angular momentum within the effective radius of early-type galaxies: unveiling the distribution of Fast and Slow Rotators
• The dramatic size evolution of elliptical galaxies and the quasar feedback
• Stellar populations of early-type galaxies in different environments II. Ages and metallicities
• The Atlas3D Project - VI. Simulations of binary galaxy mergers and the link with Fast Rotators, Slow Rotators, and Kinematically Distinct Cores
• Evolution of the Color-Magnitude Relation in Galaxy Clusters at z ~1 from the ACS Intermediate Redshift Cluster Survey
• Evidence for Non-Hydrostatic Gas from the Cluster X-ray to Lensing Mass Ratio
• Dynamical masses of early-type galaxies at z~2: Are they truly superdense?
• Dissipation and Extra Light in Galactic Nuclei: III. 'Core' Ellipticals and 'Missing' Light
• Parametric Strong Gravitational Lensing Analysis of Abell 1689
• The Star Formation Epoch of the Most Massive Early-Type Galaxies
• The stellar population histories of early-type galaxies. III. The Coma Cluster
• The ATLAS3D Project-- VIII: Modelling the Formation and Evolution of Fast and Slow Rotator Early-Type Galaxies within $\Lambda$CDM
• A spectroscopic survey of dwarf galaxies in the Coma Cluster: Stellar populations, environment and downsizing
• Little change in the sizes of the most massive galaxies since z = 1
• Mass and Gas Profiles in A1689: Joint X-ray and Lensing Analysis
• The mid-infrared colour-magnitude relation of early-type galaxies in the Coma cluster as measured by Spitzer-IRS
• Dynamical Models of Elliptical Galaxies in z=0.5 Clusters: II. Mass-to-Light Ratio Evolution without Fundamental Plane Assumptions
• M/L and Color Evolution for A Deep Sample of M* Cluster Galaxies at z~1: The Formation Epoch and the Tilt of the Fundamental Plane
• Calibration of photometry from the Gemini Multi-Object Spectrograph on Gemini North
• The stellar populations of early-type galaxies -- II. The effects of environment and mass
• Stellar populations of massive elliptical galaxies in very rich clusters
• The Evolution of Cluster Early-Type Galaxies over the Past 8 Gyr

Cited by in corpus (15)

• JKCS041: a Coma cluster progenitor at z=1.803
• Fast and slow rotators in the densest environments: a FLAMES/GIRAFFE IFS study of galaxies in Abell 1689 at z=0.183
• Fast and Slow Rotators in the Densest Environments: a SWIFT IFS study of the Coma Cluster
• The KMOS Cluster Survey (KCS) I: The fundamental plane and the formation ages of cluster galaxies at redshift $1.4<z<1.6$
• A large H$\alpha$ survey of star formation in relaxed and merging galaxy cluster environments at $z\sim 0.15-0.3$
• Redshift evolution of the dynamical properties of massive galaxies from SDSS-III/BOSS
• Early-type galaxy spin evolution in the Horizon-AGN simulation
• Galaxy populations in massive z=0.2-0.9 clusters: I. Analysis of spectroscopy
• Polar-ring galaxies: the SDSS view on the symbiotic galaxies
• The KMOS Cluster Survey (KCS) III: fundamental plane of cluster galaxies at $z\simeq 1.80$ in JKCS 041
• Dynamical masses of brightest cluster galaxies I: stellar velocity anisotropy and mass-to-light ratios
• A photometric analysis of Abell 1689: two-dimensional multi-structure decomposition, morphological classification, and the Fundamental Plane
• The most massive galaxies in clusters are already fully grown at $z\sim 0.5$
• Polar-bulge galaxies
• On the distribution of galaxy ellipticity in clusters