author={Anthony H. Gonzalez and Suresh Sivanandam and Ann I. Zabludoff and Dennis Zaritsky},
  journal={The Astrophysical Journal},
We measure the baryons contained in both the stellar and hot-gas components for 12 galaxy clusters and groups at z ~ 0.1 with M = 1-5 ? 1014 M ?. This paper improves upon our previous work through the addition of XMM-Newton X-ray data, enabling measurements of the total mass and masses of each major baryonic component?intracluster medium, intracluster stars, and stars in galaxies?for each system. We recover a mean relation for the stellar mass versus halo mass, , that is 1? shallower than in… 
A census of stellar mass in ten massive haloes at z ~ 1 from the GCLASS Survey
Aims. We study the stellar mass content of massive haloes in the redshift range 0.86< z< 1.34, by measuring: (1) The stellar mass in the central galaxy versus total dynamical halo mass. (2) The total
Coevolution of brightest cluster galaxies and intracluster light using CLASH
We examine the stellar mass assembly in galaxy cluster cores using data from the Cluster Lensing And Supernova survey with Hubble (CLASH). We measure the growth of brightest cluster galaxy (BCG)
Baryon content of massive galaxy clusters at 0.57 < z < 1.33
We study the stellar, brightest cluster galaxy (BCG) and intracluster medium (ICM) masses of 14 South Pole Telescope (SPT) selected galaxy clusters with median redshift z = 0.9 and mass M-500 = 6 x
Baryon content and dynamic state of galaxy clusters: XMM-Newton observations of A1095 and A1926
We have initiated a program to study the baryon content and dynamic state of galaxy clusters. Here we present results primarily from XMM-Newton observations of two optically selected galaxy clusters,
Rhapsody-G simulations: galaxy clusters as baryonic closed boxes and the covariance between hot gas and galaxies
Within a sufficiently large cosmic volume, conservation of baryons implies a simple ‘closed box’ view in which the sum of the baryonic components must equal a constant fraction of the total enclosed
Probing the dynamical state, baryon content, and multiphase nature of galaxy clusters with bright background QSOs
  • C. Ge, Q. Wang, L. Ji
  • Physics
    Monthly Notices of the Royal Astronomical Society
  • 2018
We have initiated a programme to study the physical/dynamical state of gas in galaxy clusters and the impact of the cluster environment on gaseous halos of individual galaxies using X-ray imaging and
Detection of anti-correlation of hot and cold baryons in galaxy clusters
The authors show the observational detection of the anti-correlation of gas mass and stellar mass observables in the most massive galaxy clusters, indicating such clusters retain close to the cosmic mix of baryons and dark matter.
Stellar feedback and the energy budget of late-type Galaxies: missing baryons and core creation
In a ΛCDM cosmology, galaxy formation is a globally inefficient process: it is often the case that far fewer baryons are observed in galaxy discs than expected from the cosmic baryon fraction. The
The Stellar Mass in and around Isolated Central Galaxies: Connections to the Total Mass Distribution through Galaxy–Galaxy Lensing in the Hyper Suprime-Cam Survey
Using photometrically selected galaxies from the Hyper Suprime-Cam (HSC) survey, we measure the stellar-mass density profiles for satellite galaxies around isolated central galaxies (ICGs) from
The stellar mass function and efficiency of galaxy formation with a varying initial mass function
Several recent observational studies have concluded that the initial mass function (IMF) of stars varies systematically with galaxy properties such as velocity dispersion. In this paper, we


A Census of Baryons in Galaxy Clusters and Groups
Abstract While the baryon fraction in galaxy groups and clusters may be expected to reflect the universal value, observations of cluster baryon fractions have generally fallen short of this
Star formation efficiency in galaxy clusters
Context. The luminous material in clusters of galaxies exists in two forms: the visible galaxies and the X-ray emitting intra-cluster medium. The hot intra-cluster gas is the major observed baryonic
We study the relationship between two major baryonic components in galaxy clusters, namely the stars in galaxies and the ionized gas in the intracluster medium (ICM), using 94 clusters that span the
The baryon budget on the galaxy group/cluster boundary
We present a study of the hot gas and stellar content of five optically selected poor galaxy clusters, including a full accounting of the contribution from intracluster light (ICL) and a combined hot
Star-formation efficiency and metal enrichment of the intracluster medium in local massive clusters of galaxies
We have investigated the baryon-mass content in a subsample of 19 clusters of galaxies extracted from the X-ray flux-limited sample HIFLUGCS according to their positions i n the sky. For these
Stellar and Total Baryon Mass Fractions in Groups and Clusters Since Redshift 1
We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a
The integrated stellar content of dark matter halos
Measurements of the total amount of stars locked up in galaxies as a function of host halo mass contain key clues about the efficiency of processes that regulate star formation. We derive the total
The stellar mass fraction and baryon content of galaxy clusters and groups
The analysis of a sample of 52 clusters with precise and hypothesis-parsimonious measurements of mass, derived from caustics based on about 208 member velocities per cluster on average, shows that
Near-Infrared Properties of Galaxy Clusters: Luminosity as a Binding Mass Predictor and the State of Cluster Baryons
We explore the near-infrared properties of galaxies within 27 galaxy clusters using data from the Two Micron All Sky Survey (2MASS). For a subsample of 13 clusters with available X-ray imaging data,
It is believed that the global baryon content of clusters of galaxies is representative of the matter distribution of the universe, and can, therefore, be used to reliably determine the