The Velocity Dispersion Function of Very Massive Galaxy Clusters: Abell 2029 and Coma

Abstract

Based on an extensive redshift survey for galaxy cluster Abell 2029 and Coma, we measure the luminosity functions (LFs), stellar mass functions (SMFs) for the entire cluster member galaxies. Most importantly, we measure the velocity dispersion functions (VDFs) for quiescent members. The MMT/Hectospec redshift survey for galaxies in A2029 identifies 982 spectroscopic members; for 838 members we derive the central velocity dispersion from the spectroscopy. Coma is the only other cluster surveyed as densely. The LFs, SMFs and VDFs for A2029 and Coma are essentially identical. The SMFs of the clusters are consistent with simulations. The A2029 and Coma VDFs for quiescent galaxies have a significantly steeper slope than those of field galaxies for velocity dispersion $\lesssim 100$ km s${}^{-1}$. The cluster VDFs also exceed the field at velocity dispersion $\gtrsim 250$ km s${}^{-1}$. The differences between cluster and field VDFs are potentially important tests of simulations and of the formation of structure in the universe.

16 pages, 18 figures, 4 tables, submitted to ApJ

References in corpus (21)

• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• Galaxy Groups in the SDSS DR4: II. halo occupation statistics
• The Universal Relation of Galactic Chemical Evolution: The Origin of the Mass-Metallicity Relation
• Deconstructing the Galaxy Stellar Mass Function with UKIDSS and CANDELS: the Impact of Colour, Structure and Environment
• The Scaling of Stellar Mass and Central Stellar Velocity Dispersion for Quiescent galaxies at z < 0.7
• Spectroscopic Determination of the Faint End of the Luminosity Function in the Nearby Galaxy Clusters A2199 and Virgo
• The history of mass assembly of faint red galaxies in 28 galaxy clusters since z=1.3
• The VIMOS VLT Deep Survey: Tracing the galaxy stellar mass assembly history over the last 8Gyr
• The Luminosity Function of Low-Redshift Abell Galaxy Clusters
• Galaxy And Mass Assembly (GAMA): The dependence of the galaxy luminosity function on environment, redshift and colour
• Connecting Dark Matter Halos with the Galaxy Center and the Supermassive Black Hole
• SHELS: A Complete Galaxy Redshift Survey with R$\le$20.6
• Spectrophotometry with Hectospec, the MMT's Fiber-Fed Spectrograph
• Deep spectroscopic luminosity function of Abell 85: no evidence for a steep upturn of the faint-end slope
• The Faint End of the Luminosity Function in the Core of the Coma Cluster
• Comparing Dense Galaxy Cluster Redshift Surveys with Weak Lensing Maps
• Globular Clusters, Ultracompact Dwarfs, and Dwarf Galaxies in Abell 2744 at the Redshift of 0.308
• Numerical simulations challenged on the prediction of massive subhalo abundance in galaxy clusters: the case of Abell 2142
• Testing galaxy formation models with galaxy stellar mass functions

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• Merging groups and clusters of galaxies from the SDSS data. The catalogue of groups and potentially merging systems
• The Globular Cluster Systems of Ultra-Diffuse Galaxies in the Coma Cluster
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• Low Metallicities and Old Ages for Three Ultra-Diffuse Galaxies in the Coma Cluster
• Velocity Dispersion, Size, Sérsic Index and $D_{n}4000$: The Scaling of Stellar Mass with Dynamical Mass for Quiescent Galaxies
• SIBELIUS-DARK: a galaxy catalogue of the Local Volume from a constrained realisation simulation
• Dynamical effects of the scale invariance of the empty space: The fall of dark matter ?
• Stellar Velocity Dispersion: Linking Quiescent Galaxies to their Dark Matter Halos
• Velocity Dispersions of Brightest Cluster Galaxies and Their Host Clusters
• The HectoMAP Cluster Survey - I. redMaPPer Clusters
• Measuring galaxy cluster mass profiles into the low acceleration regime with galaxy kinematics
• The Velocity Dispersion Function for Quiescent Galaxies in the Local Universe
• The Massively Accreting Cluster A2029
• The HectoMAP Cluster Survey: Spectroscopically Identified Clusters and their Brightest Cluster Galaxies (BCGs)
• An empirical measurement of the Halo Mass Function from the combination of GAMA DR4, SDSS DR12, and REFLEX II data
• Evolution of Late-type Galaxies in a Cluster Environment: Effects of High-speed Multiple Encounters with Early-type Galaxies
• WALLABY Pilot Survey: First Look at the Hydra I Cluster and Ram Pressure Stripping of ESO 501-G075
• Mass accretion rates of clusters of galaxies: CIRS and HeCS
• The Kinematics of Cluster Galaxies via Velocity Dispersion Profiles
• HectoMAP: The Complete Redshift Survey (Data Release 2)
• The HectoMAP Cluster Survey - II. X-ray Clusters
• A Complete Spectroscopic Census of Abell 2029: A Tale of Three Histories
• The Coevolution of Massive Quiescent Galaxies and Their Dark Matter Halos over the Last 6 Billion Years
• Mass-Velocity Dispersion Relation in HIFLUGCS Galaxy Clusters
• The Velocity Dispersion Function for Quiescent Galaxies in Nine Strong-Lensing Clusters
• The Velocity Dispersion Function for Massive Quiescent and Star-Forming Galaxies at 0.6 $<$ z $\le$ 1.0
• Tracing Dark Matter Halos with Satellite Kinematics and the Central Stellar Velocity Dispersion of Galaxies
• Towards a 1% Measurement of the Hubble Constant: Accounting for Time Dilation in Variable Star Light Curves
• ALMA-JELLY I: High Resolution CO(2-1) Observations of Ongoing Ram Pressure Stripping in NGC 4858 Reveal Asymmetrical Gas Tail Formation and Fallback
• The Gemini/HST Galaxy Cluster Project: Stellar Populations in the Low Redshift Reference Cluster Galaxies
• Nature and Origins of Rich Complexes of C IV Associated Absorption Lines
• IllustrisTNG Snapshots for 10 Gyr of Dynamical Evolution of Brightest Cluster Galaxies and Their Host Clusters
• Probing modified Newtonian dynamics with hypervelocity stars
• Caustic and hydrostatic mass bias: Implications for modified gravity
• Magellan/M2FS Spectroscopy of Galaxy Clusters: Stellar Population Model and Application to Abell 267
• A Redshift Survey of the Coma Cluster (A1656): Understanding the Nature of Subhalos in the Weak-lensing Map
• The Blooming Tree Algorithm at Work: Clusters, Filaments and Superclusters in the Field of A2029
• The velocity dispersion function of red galaxies in four Hubble Frontier Fields galaxy clusters
• Velocity dispersion functions of pressure-supported galaxies in EAGLE simulations with varying active galactic nucleus feedback
• A Spectroscopic View of the JWST/GTO Strong Lensing Cluster A1489
• Quiescent Galaxy Size, Velocity Dispersion, and Dynamical Mass Evolution
• Co-evolution of the Brightest Cluster Galaxies and their Host Clusters in IllustrisTNG