The $K_s$-band luminosity function of the rich cluster VC04 in the Vela supercluster

Abstract

To learn more about the properties of the Vela Supercluster (VSCL) located behind the Milky Way at $cz\sim 18000$~km~s${}^{-1}$, we determined the $K_s$-band Luminosity Function (LF) of VC04, the richest known galaxy cluster in the VSCL, and two other VSCL clusters (VC02 and VC08). The galaxy sample is based on NIR observations which are complete to an extinction-corrected absolute magnitude of $M_{Ks}^o<-21.5$ mag ($\sim 2.5$ mag below $M_K^{\ast }$), within the clustercentric radius of $r_c<1.5$Mpc ($\sim 70\%$ of the Abell radius). For VC04 we obtained 90 new spectroscopic redshifts of galaxies observed with the 11-m Southern African Large Telescope. We found the Schechter parameters of the VC04 LF to be $M^{\ast }=-24.41\pm 0.44$ mag, $\alpha =-1.10\pm 0.20$ and ${\varphi }^{\ast }=8.84\pm 0.20$. Both the redshift data and the LF confirm VC04 to be a rich, not yet fully relaxed cluster. We independently determined the LF of VC04 on membership defined by the Red-Sequence method and demonstrated that this method can be used in the absence of high spectroscopic coverage over a cluster. This allowed us to determine the LFs of VC02 and VC08. We also derived the LFs of the Coma, Norma and Virgo clusters to similar depth and extent as the VSCL clusters. We found that the Schechter parameters of VC04 are within $1\sigma$ uncertainties of these local clusters, as well as VC02 and VC08. We do not find significant differences between the LFs in the different cluster environments probed in this work down to $M_K^{\ast }+2.5$ mag.

arXiv comment19 pages, 12 figures and 9 tables. Accepted for publication in ApJ

References in corpus (54)

• The Optical and Near-Infrared Properties of Galaxies: I. Luminosity and Stellar Mass Functions
• Stellar mass-to-light ratios and the Tully-Fisher relation
• The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
• 2MASS Extended Source Catalog: Overview and Algorithms
• What Shapes the Luminosity Function of Galaxies?
• The 2MASS Redshift Survey - Description and Data Release
• Galaxy formation in the Planck Cosmology - I. Matching the observed evolution of star formation rates, colours and stellar masses
• A New Method For Galaxy Cluster Detection I: The Algorithm
• The Evolution of Early-Type Galaxies in Distant Clusters
• RVSAO 2.0: Digital Redshifts and Radial Velocities
• The redMaPPer Galaxy Cluster Catalog From DES Science Verification Data
• A Spitzer-Selected Galaxy Cluster at z=1.62
• Advanced Camera for Surveys Photometry of the Cluster RDCS1252.9-2927: The Color-Magnitude Relation at z=1.24
• The Slope of the Cluster Elliptical Red Sequence: A Probe of Cluster Evolution
• The 6dF Galaxy Survey: Peculiar Velocity Field and Cosmography
• The Atacama Cosmology Telescope: The Two-Season ACTPol Sunyaev-Zel'dovich Effect Selected Cluster Catalog
• Near-Infrared and Optical Luminosity Functions from the 6dF Galaxy Survey
• The Color-Magnitude Effect in Early-Type Cluster Galaxies
• Spectral Classification and Luminosity Function of Galaxies in the Las Campanas Redshift Survey
• Evolution of the Color-Magnitude relation in High-Redshift Clusters: Early-type Galaxies in the Lynx Supercluster at z~1.26
• The 6dF Galaxy Survey: Bulk Flows on $50-70h^{-1}$ Mpc scales
• On The Origin of the Local Group's Peculiar Velocity
• The Infrared Luminosity Function of Galaxies in the Coma Cluster
• Luminosity function of clusters of galaxies
• Evolution of the Color-Magnitude Relation in High-Redshift Clusters: Blue Early-Type Galaxies and Red Pairs in RDCS J0910+5422
• A Photometric and Spectroscopic Study of Dwarf and Giant Galaxies in the Coma Cluster - IV. The Luminosity Function
• Deep Near-IR Surface Photometry of 57 Galaxies in the Local Sphere of Influence
• The evolution of the red sequence slope in massive galaxy clusters
• The Nearby Optical Galaxy Sample: The Local Galaxy Luminosity Function
• Galaxy And Mass Assembly (GAMA): The dependence of the galaxy luminosity function on environment, redshift and colour
• Assembly of the Red Sequence in Infrared-Selected Galaxy Clusters from the IRAC Shallow Cluster Survey
• The Norma Cluster (ACO 3627): I. A Dynamical Analysis of the Most Massive Cluster in the Great Attractor
• Rigorous luminosity function determination in presence of a background: theory and application to two intermediate redshift clusters
• Discovery of a supercluster in the ZOA in Vela
• Comparing galaxy formation in semi-analytic models and hydrodynamical simulations
• Dim galaxies and outer halos of galaxies missed by 2MASS ? The near-infrared luminosity function and density
• The Near-IR Luminosity Function and Bimodal Surface Brightness Distribution of Virgo Cluster Galaxies
• 2MTF V. Cosmography, Beta, and the residual bulk flow
• The red sequence at birth in the galaxy cluster ClJ1449+0856 at z=2
• Constraints on galaxy formation models from the galaxy stellar mass function and its evolution
• A Catalog of Galaxies behind the Southern Milky Way. - I. The Hydra/Antlia Extension (l: 266 - 296 deg)
• Deep near-infrared luminosity function of a cluster of galaxies at z=0.3
• ACCESS: NIR Luminosity Function and Stellar Mass Function of Galaxies in the Shapley Supercluster Environment
• The galaxy luminosity function of the Abell 496 cluster and its spatial variations
• Optical turbulence characterization at the SAAO Sutherland site
• The K-band luminosity functions of cluster galaxies
• The Norma cluster (ACO3627): II. The near infrared K_s-band luminosity function
• A kinematic confirmation of the hidden Vela supercluster
• Predicting Structures in the Zone of Avoidance
• Galaxy Luminosity Function of Dynamically Young Abell 119 Cluster: Probing the Cluster Assembly
• On How to Extend the NIR Tully-Fisher Relation to be Truly All-Sky
• Galaxy clusters in the Vela supercluster. -- I. Deep NIR catalogues
• A composite K-band Luminosity Function for Cluster Galaxies
• A near-infrared study of the obscured 3C129 galaxy cluster