The luminosity of cluster galaxies in the Cluster-EAGLE simulations

Abstract

We computed the luminosity of simulated galaxies of the C-EAGLE project, a suite of 30 high-resolution zoom-in simulations of galaxy clusters based on the EAGLE simulation. The AB magnitudes are derived for different spectral bands, from ultraviolet to infrared, using the simple stellar population modeling based on the E-MILES stellar spectra library. We take into account obscuration due to dust in star forming regions and diffuse interstellar medium. The $g-r$ colour-stellar mass diagram, at z=0.1, presents a defined red sequence, reaching $g-r\simeq 0.8$, 0.05 dex redder than EAGLE at high masses, and a well populated blue cloud, when field galaxies are included. The clusters' inner regions are dominated by red-sequence galaxies at all masses, although a non-negligible amount of blue galaxies are still present. We adopt Bayesian inference to compute the clusters LFs, testing for statistical significance of both single and double Schechter functions. The multicolour LFs at z=0 show a knee luminosity that peaks in the infrared and increases with the cluster's mass. The faint-end is weakly dependent on colour and mass and shows an upturn in the optical, bounded between -1.25 and -1.39, just moderately steeper than the field. The simulations reproduce, within the observational errors, the spectroscopic LFs of the Hercules and Abell 85 clusters, including their faint end upturn. C-EAGLE LFs are in broad agreement with observed LFs taken from SDSS and XXL surveys, up to z=0.67, showing a rather flat faint end when the observational constrains are taken into account.

arXiv comment18 pages, 10 figures, 7 tables. Accepted for publication in MNRAS

References in corpus (92)

• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• emcee: The MCMC Hammer
• Galactic Stellar and Substellar Initial Mass Function
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Planck 2013 results. XVI. Cosmological parameters
• The cosmological simulation code GADGET-2
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Populating a cluster of galaxies - I. Results at z=0
• Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• The Aquarius Project: the subhalos of galactic halos
• The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations
• The Environmental Dependence of the Relations between Stellar Mass, Structure, Star Formation and Nuclear Activity in Galaxies
• The Galaxy Luminosity Function and Luminosity Density at Redshift z=0.1
• Substructures in hydrodynamical cluster simulations
• The Evolution of the Stellar Mass Functions of Star-Forming and Quiescent Galaxies to z = 4 from the COSMOS/UltraVISTA Survey
• The UKIRT Infrared Deep Sky Survey ZYJHK Photometric System: Passbands and Synthetic Colours
• Spectral Irradiance Calibration in the Infrared. XIV: the Absolute Calibration of 2MASS
• Theoretical Challenges in Galaxy Formation
• Chemical enrichment in cosmological, smoothed particle hydrodynamics simulations
• On the relation between the Schmidt and Kennicutt-Schmidt star formation laws and its implications for numerical simulations
• PRIMUS: Constraints on Star Formation Quenching and Galaxy Merging, and the Evolution of the Stellar Mass Function From z=0-1
• Simulating galactic outflows with thermal supernova feedback
• UV-extended E-MILES stellar population models: young components in massive early-type galaxies
• Galaxy evolution in groups and clusters: star formation rates, red sequence fractions, and the persistent bimodality
• The EAGLE simulations of galaxy formation: public release of halo and galaxy catalogues
• Galaxy Stellar Mass Functions from ZFOURGE/CANDELS: An Excess of Low-Mass Galaxies Since z=2 and the Rapid Buildup of Quiescent Galaxies
• A General Class of Lagrangian Smoothed Particle Hydrodynamics Methods and Implications for Fluid Mixing Problems
• Preparing Red-Green-Blue (RGB) Images from CCD Data
• The properties and luminosity function of extremely low luminosity galaxies
• The distribution of stellar mass in the low-redshift Universe
• Modelling discontinuities and Kelvin-Helmholtz instabilities in SPH
• Inviscid SPH
• The impact of angular momentum on black hole accretion rates in simulations of galaxy formation
• Colours and luminosities of z=0.1 simulated galaxies in the EAGLE simulations
• Cold gas stripping in satellite galaxies: from pairs to clusters
• The Galaxy Content of SDSS Clusters and Groups
• The Cluster-EAGLE project: global properties of simulated clusters with resolved galaxies
• The Hydrangea simulations: galaxy formation in and around massive clusters
• The EAGLE simulations of galaxy formation: the importance of the hydrodynamics scheme
• Dependence of Galaxy Quenching on Halo Mass and Distance from its Centre
• On the galaxy stellar mass function, the mass-metallicity relation, and the implied baryonic mass function
• The bright end of the galaxy luminosity function at z ~ 7: before the onset of mass quenching?
• Optical colours and spectral indices of $z=0.1$ EAGLE galaxies with 3D dust radiative transfer code SKIRT
• Implementation of feedback in SPH: towards concordance of methods
• The 2dF Galaxy Redshift Survey: the luminosity function of cluster galaxies
• Galaxy and Mass Assembly (GAMA): ugriz galaxy luminosity functions
• Measurement of Galaxy Cluster Sizes, Radial Profiles, and Luminosity Functions from SDSS Photometric Data
• The build-up of the red-sequence in galaxy clusters since z~0.8
• The Bimodal Galaxy Stellar Mass Function in the COSMOS Survey to z~1: A Steep Faint End and a New Galaxy Dichotomy
• Deconstructing the Galaxy Stellar Mass Function with UKIDSS and CANDELS: the Impact of Colour, Structure and Environment
• Evolution in the H I Gas Content of Galaxy Groups: Pre-Processing and Mass Assembly in the Current Epoch
• CLASH-VLT: Environment-driven evolution of galaxies in the z=0.209 cluster Abell 209
• The Red-Sequence Luminosity Function in Galaxy Clusters since z~1
• Disruption of satellite galaxies in simulated groups and clusters: the roles of accretion time, baryons, and pre-processing
• The galaxy luminosity function in groups and clusters: the faint-end upturn and the connection to the field luminosity function
• ALFALFA HI Data Stacking III. Comparison of environmental trends in HI gas mass fraction and specific star formation rate
• The rest-frame $K$-band luminosity function of galaxies in clusters to $z=1.3$
• Rigorous luminosity function determination in presence of a background: theory and application to two intermediate redshift clusters
• Evidence for the inside-out growth of the stellar mass distribution in galaxy clusters since z~1
• Starburst Galaxies: Why the Calzetti Dust Extinction Law?
• Luminosity function of galaxies in groups in the SDSS DR7: the dependence on mass, environment and galaxy type
• Deep Luminosity Functions and Colour-Magnitude Relations for Cluster Galaxies at 0.2 < z < 0.6
• A joint SZ-Xray-optical analysis of the dynamical state of 288 massive galaxy clusters
• Near-Infrared Properties of Moderate-Redshift Galaxy Clusters: Luminosity Functions and Density Profiles
• The Accelerated Build-up of the Red Sequence in High Redshift Galaxy Clusters
• The buildup of stellar mass and the 3.6 micron luminosity function in clusters from z=1.25 to z=0.2
• The enhancement of rapidly quenched galaxies in distant clusters at 0.5<z<1.0
• Deep spectroscopic luminosity function of Abell 85: no evidence for a steep upturn of the faint-end slope
• The Massive Galaxy Cluster XMMU J1230.3+1339 at z ~ 1: Colour-magnitude relation, Butcher-Oemler effect, X-ray and weak lensing mass estimates
• Evolution of the cluster optical galaxy luminosity function in the CFHTLS : breaking the degeneracy between mass and redshift
• Temperature Map of the Perseus Cluster of Galaxies Observed with ASCA
• Deep spectroscopy of nearby galaxy clusters: I. Spectroscopic luminosity function of Abell 85
• The Luminosity Function of the NoSOCS Galaxy Cluster Sample
• Dependence of the bright end of galaxy luminosity function on cluster dynamical state
• The evolution of the cluster optical galaxy luminosity function between z=0.4 and 0.9 in the DAFT/FADA survey
• ROSAT PSPC observations of the outer regions of the Perseus cluster of galaxies
• Morphological evolution of cluster red sequence galaxies in the past 9 Gyr
• Galaxy Luminosity Functions in WINGS clusters
• The faint end of the red sequence galaxy luminosity function: unveiling surface brightness selection effects with the CLASH clusters
• The XXL Survey XXVIII. Galaxy luminosity functions of the XXL-N clusters
• Deep spectroscopy of nearby galaxy clusters: II. The Hercules cluster
• The K-band luminosity functions of cluster galaxies
• The stellar mass function and evolution of the density profile of galaxy clusters from the Hydrangea simulations at $0<z<1.5$
• Evolution of galaxies in groups in the Coma Supercluster
• AMICO galaxy clusters in KiDS-DR3: Evolution of the luminosity function between z=0.1 and z=0.8
• Unveiling the internal structure of Hercules supercluster
• Modelling mass distribution of the Milky Way galaxy using Gaia billion-star map
• The build-up of the red sequence in the Hercules cluster
• Luminosity functions of cluster galaxies: The Near-ultraviolet luminosity function at $<z>\sim 0.05$
• Low X-Ray Luminosity Galaxy Clusters. IV. SDSS galaxy clusters at z < 0.2

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