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In the context of large scale structure formation, clusters of galaxies are located at the nodes of the cosmic web, and continue to accrete galaxies and groups along filaments. They show sometimes a very large extension and a preferential…

Astrophysics of Galaxies · Physics 2019-02-06 F. Durret , Y. Tarricq , I. Márquez , H. Ashkar , C. Adami

We present the stellar population and velocity dispersion gradients for a sample of 24 brightest cluster galaxies (BCGs) in the nearby Universe for which we have obtained high quality long-slit spectra at the Gemini telescopes. With the aim…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 S. I. Loubser , P. Sanchez-Blazquez

We study the star-formation activity in a sample of $\sim$ 56,000 brightest cluster galaxies (BCGs) at $0.05 < z < 0.42$ using optical and infra-red data from SDSS and WISE. We estimate stellar masses and star-formation rates (SFR) through…

Astrophysics of Galaxies · Physics 2022-02-02 G. Orellana-González , P. Cerulo , G. Covone , C. Cheng , R. Leiton , R. Demarco , Marie-Lou Gendron-Marsolais

The aim of this paper is to identify and study the properties and galactic content of groups and clusters in the GOODS-South field up to z\sim2.5, and to analyse the physical properties of galaxies as a continuous function of environmental…

A comparison of star formation properties as a function of environment is made from the spectra of identically selected cluster and field galaxies in the CNOC 1 redshift survey of over 2000 galaxies in the fields of fifteen X-ray luminous…

The orientation of triaxial galaxy clusters with respect to the line-of-sight is expected to be one of the prime sources of scatter and potential bias in optical observables (e.g., richness and weak-lensing signal) of galaxy clusters. In…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-26 Radhakrishnan Srinivasan , Tae-hyeon Shin , Anja von der Linden , Ricardo Herbonnet , Matthias Klein , Tamas N. Varga , Antonio Frigo , Lindsey E. Bleem , Hao-Yi Wu , Zhuowen Zhang , Benjamin Levine , Alex Alarcon , Alexandra Amon , Matthew B. Bayliss , Keith Bechtol , Matthew Becker , Gary Bernstein , Sebastian Bocquet , Andresa Campos , Aurelio Carnero Rosell , Matias Carrasco Kind , Chihway Chang , Rebecca Chen , Ami Choi , Juan De Vicente , Joseph DeRose , Scott Dodelson , Cyrille Doux , Alex Drlica-Wagner , Jack Elvin-Poole , Spencer Everett , Agnès Ferté , Marco Gatti , Raven Gassis , Michael D. Gladders , Sebastian Grandis , Daniel Gruen , Robert Gruendl , Ian Harrison , Mike Jarvis , Niall MacCrann , Jamie McCullough , Michael A. McDonald , Justin Myles , Andres Navarro Alsina , Shivam Pandey , Judit Prat , Marco Raveri , Christian L. Reichardt , Richard Rollins , Eli Rykoff , Carles Sanchez , Arnab Sarkar , Lucas F. Secco , Ignacio Sevilla , Erin Sheldon , Taweewat Somboonpanyakul , Brian Stalder , Anthony A. Stark , Michael A. Troxel , Isaac Tutusaus , Brian Yanny , Boyan Yin , Michel Aguena , Sahar Allam , Felipe Andrade-Oliveira , David Bacon , Jonathan Blazek , David Brooks , David Burke , Ryan Camilleri , Jorge Carretero , Matteo Costanzi , Luiz da Costa , Maria Elidaiana da Silva Pereira , Shantanu Desai , H. Thomas Diehl , Juan Garcia-Bellido , Gaston Gutierrez , Samuel Hinton , Devon L. Hollowood , Sujeong Lee , Jennifer Marshall , Juan Mena-Fernández , Felipe Menanteau , Ramon Miquel , Andrés Plazas Malagón , Ricardo Ogando , Kathy Romer , Aaron Roodman , Eusebio Sanchez , David Sanchez Cid , Eric Suchyta , Molly Swanson , Noah Weaverdyck , Jochen Weller

We interpret and model the statistical weak lensing measurements around 130,000 groups and clusters of galaxies in the Sloan Digital Sky Survey presented by Sheldon et al. 2007 (Paper I). We present non-parametric inversions of the 2D shear…

We present X-ray and optical properties of the optically confirmed galaxy cluster sample from the 3XMM/SDSS Stripe 82 cluster survey. The sample includes 54 galaxy clusters in the redshift range of 0.05-1.2, with a median redshift of 0.36.…

Astrophysics of Galaxies · Physics 2019-04-18 Ali Takey , Florence Durret , Isabel Márquez , Amael Ellien , Mona Molham , Adèle Plat

We present a statistical study of the redshift evolution of the cluster galaxy population over a wide redshift range from 0.1 to 1.1, using $\sim 1900$ optically-selected CAMIRA clusters from $\sim 232$~deg$^2$ of the Hyper Suprime-Cam…

We present a catalog of 200 clusters of galaxies serendipitously detected in 647 ROSAT PSPC pointings covering 158 square degrees. This is one of the largest X-ray selected cluster samples, comparable in size only to the ROSAT All-Sky…

Astrophysics · Physics 2009-10-30 A. Vikhlinin. B. R. McNamara , W. Forman , C. Jones , H. Quintana , A. Hornstrup

We present the brightest cluster galaxies (BCGs) catalog for SPectroscoic IDentification of eROSITA Sources (SPIDERS) DR14 cluster program value-added catalog. We list the 416 BCGs identified as part of this process, along with their…

Using the DIANOGA hydrodynamical zoom-in simulation set of galaxy clusters, we analyze the dynamics traced by stars belonging to the Brightest Cluster Galaxies (BCGs) and their surrounding diffuse component, forming the intracluster light…

Astrophysics of Galaxies · Physics 2021-09-06 I. Marini , S. Borgani , A. Saro , G. L. Granato , C. Ragone-Figueroa , B. Sartoris , K. Dolag , G. Murante , A. Ragagnin , Y. Wang

We use a sample of galaxy groups selected from the SDSS DR 4 with an adaptive halo-based group finder to probe how the clustering strength of groups depends on their masses and colors. In particular, we determine the relative biases of…

Astrophysics · Physics 2009-11-19 Yu Wang , Xiaohu Yang , H. J. Mo , Frank C. van den Bosch , Simone M. Weinmann , Yaoquan Chu

We explore the redshift evolution of the dynamical properties of massive clusters and their brightest cluster galaxies (BCGs) at $z < 2$ based on the IllustrisTNG-300 simulation. We select 270 massive clusters with $M_{200} < 10^{14}~{\rm…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-26 Jubee Sohn , Margaret J. Geller , Mark Vogelsberger , Josh Borrow

We present here results on the composite luminosity functions of galaxies in the clusters of galaxies selected from the SDSS Cut and Enhance cluster catalog (CE; Goto et al. 2001). We construct the composite luminosity function in the five…

We present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev-Zel'dovich (SZ) effect in the 720 deg^2 of the South Pole Telescope (SPT) survey…

We measure the two-point angular correlation function of a sample of 4,289,223 galaxies with r < 19.4 mag from the Sloan Digital Sky Survey as a function of photometric redshift, absolute magnitude and colour down to M_r - 5log h = -14 mag.…

We analyze 700 clusters from the TNG300 hydrodynamical simulation ($M_{200}\geq5\times10^{13} \,M_{\odot}$ at (z=0)) to examine the radial stellar mass distribution of their central objects, consisting of the brightest cluster galaxy (BCG)…

Compact groups of galaxies are devised as extreme environments where interactions may drive galaxy evolution. In this work, we analysed whether the luminosities of galaxies inhabiting compact groups differ from those of galaxies in loose…

Astrophysics of Galaxies · Physics 2022-05-25 Ariel Zandivarez , Eugenia Diaz-Gimenez , Antonela Taverna