Explanipedia

A Splashback-like Feature of Central Galaxies in Galaxy Clusters Open

Y. Zhang, Susmita Adhikari, Louise O. V. Edwards, Jesse B. Golden-Marx, R. L. C. Ogando , et al. · 2025

We investigate a splashback-like feature in the outer region of central galaxies (CGs) in clusters. This feature is detected as a "dip" in the radial slope of the CG surface brightness, derived through the stacking of Dark Energy Survey da…

Euclid preparation. Methodology for validating the Euclid Catalogue of Galaxy Clusters using external data Open

J.-B. Mélin, S. A. Stanford, Alex Widmer, Paula Tarrío, J. G. Bartlett , et al. · 2025

We present our methodology for identifying known clusters as counterparts to objects in the Euclid Catalogue of Galaxy Clusters (ECGC). Euclid is expected to detect a large number of optically-selected galaxy clusters over the approximatel…

Euclid: Early Release Observations. A combined strong and weak lensing solution for Abell 2390 beyond its virial radius Open

J. M. Diego, G. Congedo, R. Gavazzi, T. Schrabback, Hakim Atek , et al. · 2025

Euclid is presently mapping the distribution of matter in the Universe in detail via the weak lensing (WL) signature of billions of distant galaxies. The WL signal is most prominent around galaxy clusters, and can extend up to distances we…

Euclid: Early Release Observations Open

A. Ellien, Mireia Montes, Syeda Lammim Ahad, Paola Dimauro, Jesse B. Golden-Marx , et al. · 2025

Intracluster light (ICL) provides a record of the dynamical interactions undergone by clusters, giving clues on cluster formation and evolution. Here, we analyse the properties of ICL in the massive cluster Abell 2390 at redshift z = 0.228…

Euclid preparation Open

Callum Bellhouse, Jesse B. Golden-Marx, S. P. Bamford, N. A. Hatch, M Kluge , et al. · 2025

The intracluster light (ICL) permeating galaxy clusters is a tracer of the cluster assembly history and potentially a tracer of their dark matter structure. In this work, we explore the capability of the Euclid Wide Survey to detect ICL us…

Euclid: Early Release Observations – Overview of the Perseus cluster and analysis of its luminosity and stellar mass functions★ Open

Jean‐Charles Cuillandre, M. Bolzonella, A. Boselli, F.R Marleau, M Mondelin , et al. · 2025

The Euclid Early Release Observations (ERO) programme targeted the Perseus cluster of galaxies, gathering deep data in the central region of the cluster over 0.7 deg 2 , including the cluster core up to 0.25 r 200 . The dataset reaches a p…

Euclid: Early Release Observations – Programme overview and pipeline for compact- and diffuse-emission photometry Open

Jean‐Charles Cuillandre, E. Bertin, M. Bolzonella, H. Bouy, Stephen Gwyn , et al. · 2025

The Euclid Early Release Observations (ERO) showcase Euclid ’s capabilities in advance of its main mission by targeting 17 astronomical objects, including galaxy clusters, nearby galaxies, globular clusters, and star-forming regions. A tot…

Euclid: Early Release Observations – Dwarf galaxies in the Perseus galaxy cluster Open

F. Marleau, J.-C. Cuillandre, M. Cantiello, D. Carollo, P.-A. Duc , et al. · 2025

We make use of the unprecedented depth, spatial resolution, and field of view of the Euclid Early Release Observations (EROs) of the Perseus galaxy cluster to detect and characterise the dwarf galaxy population in this massive system. Usin…

The hierarchical growth of bright central galaxies and intracluster light as traced by the magnitude gap Open

Jesse B. Golden-Marx, Y Zhang, R. L. C. Ogando, B Yanny, M. E. S. Pereira , et al. · 2025

Using a sample of 2800 galaxy clusters identified in the Dark Energy Survey across the redshift range $0.20 \lt z \lt 0.60$, we characterize the hierarchical assembly of bright central galaxies (BCGs) and the surrounding intracluster light…

Euclid: Early Release Observations – The intracluster light and intracluster globular clusters of the Perseus cluster Open

M. Kluge, N. A. Hatch, Mireia Montes, Jesse B. Golden-Marx, A.H. Gonzalez , et al. · 2024

We study the intracluster light (ICL) and intracluster globular clusters (ICGCs) in the nearby Perseus cluster of galaxies using Euclid ’s Early Release Observations. By modelling the isophotal and iso-density contours, we mapped the distr…

Improving Galaxy Cluster Selection with the Outskirt Stellar Mass of Galaxies Open

Matthew Kwiecien, T. Jeltema, Alexie Leauthaud, Song Huang, E. S. Rykoff , et al. · 2024

The number density and redshift evolution of optically selected galaxy clusters offer an independent measurement of the amplitude of matter fluctuations, $S_8$. However, recent results have shown that clusters chosen by the redMaPPer algor…

The Hierarchical Growth of Bright Central Galaxies and Intracluster Light as Traced by the Magnitude Gap Open

Jesse B. Golden-Marx, Y. Zhang, R. L. C. Ogando, B. Yanny, M. E. S. Pereira , et al. · 2024

Using a sample of 2800 galaxy clusters identified in the Dark Energy Survey across the redshift range $0.20 < z < 0.60$, we characterize the hierarchical assembly of Bright Central Galaxies (BCGs) and the surrounding intracluster light (IC…

Euclid: Early Release Observations – A preview of the Euclid era through a galaxy cluster magnifying lens Open

H. Atek, R Gavazzi, John R. Weaver, J. M. Diego, T. Schrabback , et al. · 2024

We present the first analysis of the Euclid Early Release Observations (ERO) program that targets fields around two lensing clusters, Abell 2390 and Abell 2764. We use imaging data from the Visible instrument (VIS) and the Near-Infrared Sp…

Euclid: Early Release Observations -- A preview of the Euclid era through a galaxy cluster magnifying lens Open

Hakim Atek, R. Gavazzi, J.R Weaver, J. M. Diego, T. Schrabback , et al. · 2024

We present the first analysis of the Euclid Early Release Observations (ERO) program that targets fields around two lensing clusters, Abell 2390 and Abell 2764. We use VIS and NISP imaging to produce photometric catalogs for a total of $\s…

Euclid: Early Release Observations -- The intracluster light and intracluster globular clusters of the Perseus cluster Open

M. Kluge, N. A. Hatch, Mireia Montes, Jesse B. Golden-Marx, A. H. Gonzalez , et al. · 2024

We study the intracluster light (ICL) and intracluster globular clusters (ICGCs) in the nearby Perseus galaxy cluster using Euclid's EROs. By modelling the isophotal and iso-density contours, we mapped the distributions and properties of t…

Dark Energy Survey Year 6 results: Intra-cluster light from redshift 0.2 to 0.5 Open

Y. Zhang, Jesse B. Golden-Marx, R. L. C. Ogando, B. Yanny, E. S. Rykoff , et al. · 2024

Using the full 6 years of imaging data from the Dark Energy Survey, we study the surface brightness profiles of galaxy cluster central galaxies and intra-cluster light. We apply a ‘stacking’ method to over 4000 galaxy clusters identified b…

The CluMPR galaxy cluster-finding algorithm and DESI legacy survey galaxy cluster catalogue Open

M. J. Yantovski-Barth, Jeffrey A. Newman, Biprateep Dey, Brett H. Andrews, Michael Eracleous , et al. · 2024

Galaxy clusters enable unique opportunities to study cosmology, dark matter, galaxy evolution, and strongly lensed transients. We here present a new cluster-finding algorithm, CluMPR (Clusters from Masses and Photometric Redshifts), that e…

Candidate cluster-scale gravitationally lensed quasars from CluMPR and DESI Legacy Survey Open

M. J. Yantovski-Barth, Jeffrey A. Newman, Biprateep Dey, Brett H. Andrews, Michael Eracleous , et al. · 2024

Candidate cluster-scale strongly-lensed quasars from DESI Legacy Survey (DESI QSO targets) and CluMPR DESI Legacy Survey galaxy cluster catalog. Paper decribing the CluMPR galaxy cluster catalogs and candidate lensed quasar catalogs: The C…

The CluMPR Galaxy Cluster Catalogue for DESI Legacy Survey DR9 Open

M. J. Yantovski-Barth, Jeffrey A. Newman, Biprateep Dey, Brett H. Andrews, Michael Eracleous , et al. · 2024

Galaxy cluster catalog and cluster member galaxy catalogs compiled using the CluMPR cluster-finding algorithm. Paper decribing the CluMPR algorithms and cluster catalogs: The CluMPR Galaxy Cluster-Finding Algorithm and DESI Legacy Survey G…

Euclid: Early Release Observations – Dwarf galaxies in the Perseus galaxy cluster Open

F.R Marleau, Jean‐Charles Cuillandre, Michele Cantiello, D. Carollo, Pierre–Alain Duc , et al. · 2024

We make use of the unprecedented depth, spatial resolution, and field of view of the Euclid Early Release Observations of the Perseus galaxy cluster to detect and characterise the dwarf galaxy population in this massive system. The Euclid …

The High-redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Investigating the Role of Environment on Bent Radio AGNs Using LOFAR Open

Emmet Golden-Marx, Emily Moravec, Lu Shen, Zheng Cai, E. L. Blanton , et al. · 2023

Bent radio active galactic nucleus (AGN) morphology depends on the density of the surrounding gas. However, bent sources are found inside and outside clusters, raising the question of how environment impacts bent AGN morphology. We analyze…

Dark Energy Survey Year 6 Results: Intra-Cluster Light from Redshift 0.2 to 0.5 Open

Y. Zhang, Jesse B. Golden-Marx, R. C. Ogando, B. Yanny, E. S. Rykoff , et al. · 2023

Using the full six years of imaging data from the Dark Energy Survey, we study the surface brightness profiles of galaxy cluster central galaxies and intra-cluster light. We apply a ``stacking'' method to over four thousand galaxy clusters…

The High-Redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Investigating the Role of Environment on Bent Radio AGNs using LOFAR Open

Emmet Golden-Marx, Emily Moravec, Lu Shen, Zheng Cai, E. L. Blanton , et al. · 2023

Bent radio AGN morphology depends on the density of the surrounding gas. However, bent sources are found inside and outside clusters, raising the question of how environment impacts bent AGN morphology. We analyze new LOw-Frequency Array T…

Candidate cluster-scale gravitationally lensed quasars from CluMPR and DESI Legacy Survey Open

M. J. Yantovski-Barth, Jeffrey A. Newman, Biprateep Dey, Brett H. Andrews, Michael Eracleous , et al. · 2023

Candidate cluster-scale strongly-lensed quasars from DESI Legacy Survey (DESI QSO targets) and CluMPR DESI Legacy Survey galaxy cluster catalog. Paper decribing the CluMPR galaxy cluster catalogs and candidate lensed quasar catalogs: The C…

The CluMPR Galaxy Cluster-Finding Algorithm and DESI Legacy Survey Galaxy Cluster Catalogue Open

M. J. Yantovski-Barth, Jeffrey A. Newman, Biprateep Dey, Brett H. Andrews, Michael Eracleous , et al. · 2023

Galaxy clusters enable unique opportunities to study cosmology, dark matter, galaxy evolution, and strongly-lensed transients. We here present a new cluster-finding algorithm, CluMPR (Clusters from Masses and Photometric Redshifts), that e…

The CluMPR Galaxy Cluster Catalogue for DESI Legacy Survey DR9 Open

M. J. Yantovski-Barth, Jeffrey A. Newman, Biprateep Dey, Brett H. Andrews, Michael Eracleous , et al. · 2023

Galaxy cluster catalog and cluster member galaxy catalogs compiled using the CluMPR cluster-finding algorithm. Paper decribing the CluMPR algorithms and cluster catalogs: The CluMPR Galaxy Cluster-Finding Algorithm and DESI Legacy Survey G…

Characterizing the intracluster light over the redshift range 0.2 < z < 0.8 in the DES-ACT overlap Open

Jesse B. Golden-Marx, Y Zhang, R. L. C. Ogando, S. Allam, D. L. Tucker , et al. · 2023

We characterize the properties and evolution of bright central galaxies (BCGs) and the surrounding intracluster light (ICL) in galaxy clusters identified in the Dark Energy Survey and Atacama Cosmology Telescope Survey (DES-ACT) overlappin…

Satellite Content and Halo Mass of Galaxy Clusters: Comparison between Red-Sequence and Halo-based Optical Cluster Finders Open

Jesse B. Golden-Marx, Ying Zu, Jiaqi Wang, Hekun Li, Jun Zhang , et al. · 2022

Cluster cosmology depends critically on how optical clusters are selected from imaging surveys. We compare the conditional luminosity function (CLF) and weak lensing halo masses between two different cluster samples at fixed richness, dete…

Characterising the Intracluster Light over the Redshift Range $0.2 < z < 0.8$ in the DES-ACT Overlap Open

Jesse B. Golden-Marx, Y. Zhang, R. L. C. Ogando, S. Allam, D. L. Tucker , et al. · 2022

We characterise the properties and evolution of Bright Central Galaxies (BCGs) and the surrounding intracluster light (ICL) in galaxy clusters identified in overlapping regions of the Dark Energy Survey and Atacama Cosmology Telescope Surv…

The Observed Evolution of the Stellar Mass–Halo Mass Relation for Brightest Central Galaxies Open

Jesse B. Golden-Marx, C. J. Miller, Y. Zhang, R. L. C. Ogando, A. Palmese , et al. · 2022

We quantify evolution in the cluster-scale stellar mass–halo mass (SMHM) relation’s parameters using 2323 clusters and brightest central galaxies (BCGs) over the redshift range 0.03 ≤ z ≤ 0.60. The precision on the inferred SMHM parameters…

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