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Related papers: Alignment of Brightest Cluster Galaxies with their…

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We identified 132,684 clusters in the redshift range of 0.05<z<0.8 from SDSS DR8. The spectroscopic redshifts of 52,683 clusters have been included in the catalog using SDSS DR9 data. We found that BCGs are more luminous in richer clusters…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Z. L. Wen , J. L. Han

We constrain the evolution of the brightest cluster galaxy plus intracluster light (BCG+ICL) using an ensemble of 42 galaxy groups and clusters that span redshifts of z = 0.05-1.75 and masses of $M_{500,c}=2\times10^{13}-10^{15}$ M$_\odot$…

We present measurements of two types of cluster galaxy alignments based on a volume limited and highly pure ($\ge$ 90%) sample of clusters from the GMBCG catalog derived from SDSS DR7. We detect a clear BCG alignment (the alignment of major…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Jiangang Hao , Jeffrey M. Kubo , Robert Feldmann , James Annis , David E. Johnston , Huan Lin , Timothy A. McKay

Using a large N-body cosmological simulation combined with a subgrid treatment of galaxy formation, we study the formation and evolution of the galaxy and cluster population in a comoving volume (100 Mpc)^3 in a LCDM universe. At z = 0, our…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Hugo Martel , Fidèle Robichaud , Paramita Barai

Using a sample of $>200$ clusters, each with typically $100-200$ spectroscopically confirmed cluster members, we search for a signal of alignment between the Position Angle (PA) of the Brightest Cluster Galaxy (BCG) and the distribution of…

(Abridged) We have derived detailed R band luminosity profiles and structural parameters for a total of 430 brightest cluster galaxies (BCGs), down to a limiting surface brightness of 24.5 mag/arcsec^2. Light profiles were initially fitted…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 C. J. Donzelli , Hernan Muriel , Juan P. Madrid

Luminosity function of cluster galaxies provides a fundamental constraint on galaxy evolution in cluster environments. By using the bright member galaxies of a large sample of rich clusters identified from Sloan Digital Sky Survey, we…

Astrophysics of Galaxies · Physics 2015-06-23 Z. L. Wen , J. L. Han

We study the luminosity gap, dm12, between the first and second ranked galaxies in a sample of 59 massive galaxy clusters, using data from the Hale Telescope, HST, Chandra, and Spitzer. We find that the dm12 distribution, p(dm12), is a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Graham P. Smith , Habib G. Khosroshahi , A. Dariush , A. J. R. Sanderson , T. J. Ponman , J. P. Stott , C. P. Haines , E. Egami , D. P. Stark

We use semi-analytic techniques to study the formation and evolution of brightest cluster galaxies (BCGs). We show the extreme hierarchical nature of these objects and discuss the limits of simple ways to capture their evolution. In a model…

Astrophysics · Physics 2008-11-26 Gabriella De Lucia , Jeremy Blaizot

We analyse the K-band Hubble diagram for a sample of brightest cluster galaxies (BCGs) in the redshift range 0<z<1. In good agreement with earlier studies, we confirm that the scatter in the absolute magnitudes of the galaxies is small (0.3…

Astrophysics · Physics 2009-10-30 A. Aragon-Salamanca , C. M. Baugh , G. Kauffmann

Intrinsic color profiles of a sample of nine Brightest Cluster Galaxies (BCGs) are recovered from the observed color profiles by evaluating spurious gradients introduced by errors in the determination of the sky levels and by different…

Astrophysics · Physics 2008-02-03 S. Andreon , B. Garilli , D. Maccagni

The properties of the brightest galaxies (BCGs) are studied in both compact and loose groups of galaxies in order to better understand the physical mechanisms influencing galaxy evolution in different environments. Samples of BCGs are…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Héctor J. Martínez , Valeria Coenda , Hernán Muriel

We present deep J and Ks band photometry of 20 high redshift galaxy clusters between z=0.8-1.5, 19 of which are observed with the MOIRCS instrument on the Subaru Telescope. By using near-infrared light as a proxy for stellar mass we find…

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 show that the distribution of luminosities of Brightest Cluster Galaxies in an SDSS-based group catalog suggests that BCG luminosities are just the statistical extremes of the group galaxy luminosity function. This latter happens to be…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-19 Aseem Paranjape , Ravi K. Sheth

We present the first sample of 882 optically selected galaxy clusters in the Deep Lens Survey (DLS), selected with the Bayesian Cluster Finder. We create mock DLS data to assess completeness and purity rates, and find that both are at least…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Begoña Ascaso , David Wittman , William Dawson

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 present the first results from our HST Brightest Cluster Galaxy (BCG) survey of seven central supergiant cluster galaxies and their globular cluster (GC) systems. We measure a total of 48000 GCs in all seven galaxies, representing the…

Using a sample of 98 galaxy clusters recently imaged in the near infra-red with the ESO NTT, WIYN and WHT telescopes, supplemented with 33 clusters from the ESO archive, we measure how the stellar mass of the most massive galaxies in the…

The K-band Hubble diagram for a sample of brightest cluster galaxies (BCGs) in the redshift range 0<z<1 shows a very small scatter (0.3 magnitudes r.m.s). The BCGs exhibit very little luminosity evolution in this redshift range: if q_0=0.0…

Astrophysics · Physics 2007-05-23 A. Aragon-Salamanca , C. M. Baugh , G. Kauffmann