Specific Frequencies and Luminosity Profiles of Cluster Galaxies and Intracluster Light in Abell 1689

Abstract

We present magnitudes and profile fits for 180 galaxies in the central field of the massive lensing cluster Abell 1689 using very deep imaging with the ACS/HST in the F814W bandpass. Previous work revealed an exceptionally large number of globular clusters (GCs) in A1689 and mapped their number density distribution. We decompose this number density map into GCs associated with individual cluster galaxies and ICGCs (intracluster globular clusters) associated with the intracluster light (ICL). In all, we measure GC specific frequencies $S_N$ for 33 cluster members and the ICL. The relation between $S_N$ and galaxy magnitude is consistent with the trend observed in Virgo, although some intermediate luminosity galaxies scatter to $S_N>10$. We estimate the ICL makes up 11% of the starlight in this field, whereas the ICGCs account for $\sim$35% of the GCs, both consistent with predictions from simulations. Galaxies with higher $S_N$ values tend to be rounder, and there is a marginally significant trend of decreasing $S_N$ with increasing specific angular momenta ${\lambda }_R$. We also reevaluate the GC population in the A2744 Frontier Field, for which fewer than one-tenth as many GCs have been detected because of its larger distance. Finally, our core-Sérsic fit to the light profile of the A1689 BCG implies a break radius of 3.8kpc, among the largest known; we discuss implications of the sizable core and extensive GC population for the supermassive black hole in light of scaling relations.

Accepted for publication in ApJ

References in corpus (22)

• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• The SAURON project -- IX. A kinematic classification for early-type galaxies
• The Importance of Satellite Quenching for the Build-Up of the Red Sequence of Present Day Galaxies
• The ACS Virgo Cluster Survey XV. The Formation Efficiencies of Globular Clusters in Early-Type Galaxies: The Effects of Mass and Environment
• The Burrell Schmidt Deep Virgo Survey: Tidal Debris, Galaxy Halos, and Diffuse Intracluster Light in the Virgo Cluster
• The Formation and Evolution of Intracluster Light
• Galactic Dark Matter Halos and Globular Cluster Populations. III: Extension to Extreme Environments
• Intracluster light and the extended stellar envelopes of cD galaxies: An analytical description
• Parametric Strong Gravitational Lensing Analysis of Abell 1689
• Dark Matter Halos in Galaxies and Globular Cluster Populations
• Clusters at Half Hubble Time: Galaxy Structure and Colors in RXJ0152.7-1357 and MS1054-03
• The impact of galactic properties and environment on the quenching of central and satellite galaxies: A comparison between SDSS, Illustris and L-Galaxies
• Galaxy environment in the 3D-HST fields. Witnessing the onset of satellite quenching at z ~ 1-2
• Quenching of Star Formation in SDSS Groups: Centrals, Satellites, and Galactic Conformity
• The Cluster Velocity Dispersion of the Abell 2199 cD Halo of NGC 6166
• Internal dynamics of the radio-halo cluster A2744
• The Physical Origins of The Morphology-Density Relation: Evidence for Gas Stripping from the SDSS
• Fast and slow rotators in the densest environments: a FLAMES/GIRAFFE IFS study of galaxies in Abell 1689 at z=0.183
• A remarkably large depleted core in the Abell 2029 BCG IC 1101
• To the Edge of M87 and Beyond: Spectroscopy of Intracluster Globular Clusters and Ultra Compact Dwarfs in the Virgo Cluster
• Globular Clusters, Ultracompact Dwarfs, and Dwarf Galaxies in Abell 2744 at the Redshift of 0.308
• The quest for the largest depleted galaxy core: supermassive black hole binaries and stalled in-falling satellites

Cited by in corpus (9)

• The PIPER Survey: I. An Initial Look at the Intergalactic Globular Cluster Population in the Perseus Cluster
• Detection of Intracluster Globular Clusters in the First JWST Images of the Gravitational Lens Cluster SMACS J0723.3-7327 at z = 0.39
• The Transition Region between Brightest Cluster Galaxies and Intra-Cluster Light in Galaxy Groups and Clusters
• Intracluster Light Properties in a Fossil Cluster at z=0.47
• Modeling globular clusters in the TNG50 simulation: predictions from dwarfs to giants
• Globular Cluster Systems of Relic Galaxies
• The influence of globular cluster evolution on the specific frequency in dwarf galaxies
• Early-type galaxies in low-density environments: NGC 6876 explored through its globular cluster system
• The most massive galaxies with large depleted cores: structural parameter relations and black hole masses