The zCOSMOS-Bright survey: the clustering of early and late galaxy morphological types since z~1

Abstract

We measure the spatial clustering of galaxies as a function of their morphological type at z~0.8, for the first time in a deep redshift survey with full morphological information. This is obtained by combining high-resolution HST imaging and VLT spectroscopy for about 8,500 galaxies to I_AB=22.5 with accurate spectroscopic redshifts from the zCOSMOS-Bright redshift survey. At this epoch, early-type galaxies already show a significantly stronger clustering than late-type galaxies on all probed scales. A comparison to the SDSS at z~0.1, shows that the relative clustering strength between early and late morphological classes tends to increase with cosmic time at small separations, while on large scales it shows no significant evolution since z~0.8. This suggests that most early-type galaxies had already formed in intermediate and dense environments at this epoch. Our results are consistent with a picture in which the relative clustering of different morphological types between z~1 and z~0, reflects the evolving role of environment in the morphological transformation of galaxies, on top of the global mass-driven evolution.

10 pages, 10 figures, accepted for publication in MNRAS

References in corpus (24)

• The Cosmic Evolution Survey (COSMOS) -- Overview
• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field
• Galaxy Zoo: the dependence of morphology and colour on environment
• Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements
• The high redshift galaxy population in hierarchical galaxy formation models
• The DEEP2 Galaxy Redshift Survey: The Relationship Between Galaxy Properties and Environment at z ~ 1
• The DEEP2 Galaxy Redshift Survey: Color and Luminosity Dependence of Galaxy Clustering at z~1
• Galaxy Pairs in the Sloan Digital Sky Survey - II: The Effect of Environment on Interactions
• The VIMOS VLT Deep Survey: The build-up of the colour-density relation
• The zCOSMOS Redshift Survey: the role of environment and stellar mass in shaping the rise of the morphology-density relation from z~1
• A Halo Model of Galaxy Colors and Clustering in the SDSS
• The Vimos VLT Deep Survey: Global properties of 20000 galaxies in the I_AB<=22.5 WIDE survey
• SDSS Galaxy Clustering: Luminosity & Colour Dependence and Stochasticity
• The zCOSMOS Survey. The dependence of clustering on luminosity and stellar mass at z=0.2-1
• The zCOSMOS Redshift Survey: How group environment alters global downsizing trends
• Modelling and interpreting the dependence of clustering on the spectral energy distributions of galaxies
• The zCOSMOS survey: the role of the environment in the evolution of the luminosity function of different galaxy types
• The 10k zCOSMOS: morphological transformation of galaxies in the group environment since z~1
• Strong clustering of underdense regions and the environmental dependence of clustering from Gaussian initial conditions
• The VIMOS-VLT Deep Survey. The dependence of clustering on galaxy stellar mass at z~1
• Clustering properties of a type-selected volume-limited sample of galaxies in the CFHTLS
• Understanding the shape of the galaxy two-point correlation function at z~1 in the COSMOS field
• VVDS-SWIRE: Clustering evolution from a spectroscopic sample of galaxies with redshift 0.2<z<2.1 selected from Spitzer IRAC 3.6 micron and 4.5 micron photometry

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• First results from the IllustrisTNG simulations: matter and galaxy clustering
• Evolution of the Galaxy - Dark Matter Connection and the Assembly of Galaxies in Dark Matter Halos
• Clustering properties of BzK-selected galaxies in GOODS-N: environmental quenching and triggering of star formation at z ~ 2
• PRIMUS: Galaxy Clustering as a Function of Luminosity and Color at 0.2<z<1
• PRIMUS+DEEP2: The Dependence of Galaxy Clustering on Stellar Mass and Specific Star Formation Rate at 0.2 < z < 1.2
• The evolution of clustering length, large-scale bias and host halo mass at 2<z<5 in the VIMOS Ultra Deep Survey (VUDS)
• The ALHAMBRA survey: reliable morphological catalogue of 22,051 early- and late-type galaxies
• Galaxy clustering and projected density profiles as traced by satellites in photometric surveys: Methodology and luminosity dependence
• The VIMOS Public Extragalactic Redshift Survey (VIPERS): spectral classification through Principal Component Analysis
• Large scale clustering measurements with photometric redshifts: comparing the dark matter halos of X-ray AGN, star-forming and passive galaxies at z~1
• Imprint of DESI fiber assignment on the anisotropic power spectrum of emission line galaxies
• An IFU View of the Active Galactic Nuclei in MaNGA Galaxy Pairs
• Identifying galaxy groups at high redshift from incomplete spectroscopic data: I. The group finder and application to zCOSMOS
• Autocorrelations of stellar light and mass at z~0 and ~1: From SDSS to DEEP2
• The FMOS-COSMOS survey of star-forming galaxies at $z\sim 1.6$. V: Properties of dark matter halos containing H$\alpha$ emitting galaxies
• A group-galaxy cross-correlation function analysis in zCOSMOS
• The ALHAMBRA survey: evolution of galaxy spectral segregation
• Dissecting galaxy triplets in the Sloan Digital Sky Survey Data Release 10: I. Stellar populations and emission line analysis
• Observational determination of the galaxy bias from cosmic variance with a random pointing survey: Clustering of z~2 galaxies from Hubble's BoRG survey
• Measuring galaxy abundance and clustering at high redshift from incomplete spectroscopic data: Tests on mock catalogs