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We investigate the stellar and dynamical mass profiles in the centres of 25 brightest cluster galaxies (BCGs) at redshifts of 0.05 $\leq z \leq$ 0.30. Our spectroscopy enables us to robustly measure the Gauss-Hermite higher order velocity…

Astrophysics of Galaxies · Physics 2020-06-17 S. I. Loubser , A. Babul , H. Hoekstra , Y. M. Bahé , E. O'Sullivan , M. Donahue

One intriguing approach for studying the dynamical evolution of galaxy clusters is to compare the spatial distributions among various components, such as dark matter, member galaxies, gas, and intracluster light (ICL). Utilizing the…

We estimate the Intracluster Light (ICL) component within a sample of 18 clusters detected in XMM Cluster Survey (XCS) data using deep ($\sim$ 26.8 mag) Hyper Suprime Cam Subaru Strategic Program DR1 (HSC-SSP DR1) $i$-band data. We apply a…

Compact groups are associations of a few galaxies in which the environment plays an important role in galaxy evolution. The low group velocity dispersion favors tidal interactions and mergers, which may bring stars from galaxies to the…

Astrophysics · Physics 2009-11-11 J. A. L. Aguerri , N. Castro-Rodriguez , N. Napolitano , M. Arnaboldi , O. Gerhard

We investigate the near-infrared K-band properties of the brightest cluster galaxies (BCGs) in a sample of 93 galaxy clusters and groups, using data from the Two Micron All Sky Survey. Our cluster sample spans a factor of 70 in mass, making…

Astrophysics · Physics 2008-11-26 Yen-Ting Lin , Joseph J Mohr

The diffuse intracluster light (ICL) contains a significant fraction of the total stellar mass in clusters of galaxies, and contributes in roughly equal proportion as the hot intra-cluster medium (ICM) to the total baryon content of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 I. Toledo , J. Melnick , F. Selman , H. Quintana , E. Giraud , P. Zelaya

Context. Intracluster Light (ICL) is a faint stellar component of galaxy groups and clusters bound to the cluster potential, and making up a significant fraction of the cluster mass. ICL formation and evolution is strongly linked to the…

Astrophysics of Galaxies · Physics 2026-04-07 Rebecca J. Mayes , Facundo A. Gómez , Antonela Monachesi

We have selected a sample of eleven massive clusters of galaxies observed by the Hubble Space Telescope in order to study the impact of the dynamical state on the IntraCluster Light (ICL) fraction, the ratio of total integrated ICL to the…

Intracluster light (ICL) is diffuse light from stars that are gravitationally bound not to individual member galaxies, but to the halo of galaxy clusters. Leading theories predict that the ICL fraction, defined by the ratio of the ICL to…

Astrophysics of Galaxies · Physics 2023-01-25 Hyungjin Joo , Myungkook James Jee

We investigate the origin and formation mechanisms of the intra-cluster light (ICL) in The Three Hundred simulations, a set of 324 hydrodynamically resimulated massive galaxy clusters. The ICL, a diffuse component of stars not bound to…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-12 A. Contreras-Santos , A. Knebe , W. Cui , I. Alonso Asensio , C. Dalla Vecchia , R. Haggar , R. A. Mostoghiu Paun , F. R. Pearce , E. Rasia , G. Martin , S. E. Nuza , G. Yepes

We study the growth pathways of Brightest Central Galaxies (BCGs) and Intra-Cluster Light (ICL) by means of a semi-analytic model. We assume that the ICL forms by stellar stripping of satellite galaxies and violent processes during mergers,…

Astrophysics of Galaxies · Physics 2018-07-04 E. Contini , S. K. Yi , X. Kang

[Abridged] We searched for diffuse stellar emission around BCGs in three of the most X-ray luminous clusters found at z~0.3 in the REFLEX cluster survey and observed with XMM-Newton. These systems (RXCJ0014.3-3022, RXCJ0232.2-4420, and…

Astrophysics · Physics 2009-11-13 D. Pierini , S. Zibetti , F. Braglia , H. Boehringer , A. Finoguenov , P. D. Lynam , Y. -Y. Zhang

We study colors and metallicities of the Brightest Cluster Galaxies (BCGs) and Intra-Cluster Light (ICL) in galaxy groups and clusters, as predicted by a semi-analytic model of galaxy formation, coupled with a set of high-resolution N-body…

Astrophysics of Galaxies · Physics 2019-01-30 E. Contini , S. K. Yi , X. Kang

Using N-body simulations, we have modeled the production and evolution of low surface brightness, diffuse intra-cluster light (ICL) in galaxy clusters. By creating simulated observations of the clusters we have measured the evolution of the…

Astrophysics · Physics 2015-06-24 Craig S. Rudick , J. Christopher Mihos , Cameron McBride

Recent studies have highlighted the potential of intracluster light (ICL) as a dark matter tracer. Moreover, the ICL co-evolves with the brightest cluster galaxy (BCG) and the host cluster, making it a valuable tool for understanding…

Astrophysics of Galaxies · Physics 2025-06-23 Jaewon Yoo , Jihye Shin , Ho Seong Hwang , Cristiano G. Sabiu , Hyowon Kim , Jongwan Ko , Jong Chul Lee

Analyses of B and R band observations of four compact groups reveal the presence of a considerable amount of diffuse, intergalactic light in two of them (HCG 79 and HCG 95). The diffuse component is presumably due to stellar material that…

Astrophysics · Physics 2009-11-07 C. Mendes de Oliveira , C. Da Rocha , C. R. Rabaça , D. N. E. Pereira , M. Bolte

The diffuse stellar component of galaxy clusters made up of intergalactic stars is termed the intracluster light (ICL). Though there is a developing understanding of the mechanisms by which the ICL is formed, no strong consensus has yet…

Astrophysics of Galaxies · Physics 2024-09-18 Harley J. Brown , Garreth Martin , Frazer R. Pearce , Nina A. Hatch , Yannick M. Bahé , Yohan Dubois

The intracluster light (ICL) is a luminous component of galaxy clusters composed of stars that are gravitationally bound to the cluster potential but do not belong to the individual galaxies. Previous studies of the ICL have shown that its…

We study the origin of the diffuse stellar component (DSC) in 117 galaxy clusters extracted from a cosmological hydrodynamical simulation. We identify all galaxies present in the simulated clusters at 17 output redshifts, and then build the…

Astrophysics · Physics 2008-11-26 G. Murante , M. Giovalli , O. Gerhard , M. Arnaboldi , S. Borgani , K. Dolag

We use a multi million particle N-body + SPH simulation to follow the formation of a rich galaxy cluster in a Lambda+CDM cosmology, with the goal of understanding the origin and properties of intracluster stars. The simulation includes gas…

Astrophysics · Physics 2009-11-10 Beth Willman , Fabio Governato , James Wadsley , Thomas Quinn