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We analyze the stellar growth of Brightest Cluster Galaxies (BCGs) produced by cosmological zoom-in hydrodynamical simulations of the formation of massive galaxy clusters. The evolution of the stellar mass content is studied considering…

Astrophysics of Galaxies · Physics 2018-07-18 C. Ragone-Figueroa , G. L. Granato , M. E. Ferraro , G. Murante , V. Biffi , S. Borgani , S. Planelles , E. Rasia

We use the L-GALAXIES semi-analytic model to investigate the evolution of Brightest Cluster Galaxies (BCGs) found in clusters at $\rm z \sim 0$. BCGs are typically located in the central region of galaxy clusters, near the bottom of the…

Using new and published data, we construct a sample of 160 brightest cluster galaxies (BCGs) spanning the redshift interval 0.03 < z < 1.63. We use this sample, which covers 70% of the history of the universe, to measure the growth in the…

We examine the role of environment on the in situ star formation (SF) hosted by the progenitors of the most massive galaxies in the present-day universe, the brightest cluster galaxies (BCGs), from $z \sim 3$ to present in the COSMOS field.…

Hierarchical assembly within clusters of galaxies is tied directly to the evolution of the Brightest Cluster Galaxies (BCGs), which dominate the stellar light in the centres of rich clusters. In this paper we investigate the number of…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-19 Claire Burke , Chris A. Collins

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

The mass and structural evolution of massive galaxies is one of the hottest topics in galaxy formation. This is because it may reveal invaluable insights into the still debated evolutionary processes governing the growth and assembly of…

At the present time, SDSS early-type BCGs have larger Re than early-type galaxies of similar L, whether these other objects are in the field, or are satellites in clusters (Re ~ L for BCGs). At fixed M* and formation time, BCGs at lower z…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 M. Bernardi

We study the formation and evolution of Brightest Cluster Galaxies starting from a $z=2$ population of quiescent ellipticals and following them to $z=0$. To this end, we use a suite of nine high-resolution dark matter-only simulations of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Chervin F. P. Laporte , Simon D. M. White , Thorsten Naab , Liang Gao

In this study we investigate the formation and evolution mechanisms of the brightest cluster galaxies (BCGs) over cosmic time. At high redshift ($z\sim0.9$), we selected BCGs and most massive cluster galaxies (MMCGs) from the Cl1604…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Begoña Ascaso , Brian C. Lemaux , Lori M. Lubin , Roy R. Gal , Dale D. Kocevski , Nicholas Rumbaugh , Gordon Squires

Recent reports suggest that elliptical galaxies have increased their size dramatically over the last ~8 Gyr. This result points to a major re-think of the processes dominating the latetime evolution of galaxies. In this paper we present the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 J. P. Stott , C. A. Collins , C. Burke , V. Hamilton-Morris , G. P. Smith

The growth of galaxies is a key problem in understanding the structure and evolution of the universe. Galaxies grow their stellar mass by a combination of star formation and mergers, with a relative importance that is redshift dependent.…

We present results on the evolution in the last 6 Gyr of the structural parameters of two samples of brightest cluster galaxies (BCGs). The nearby sample of BCGs consist on 69 galaxies from the WINGS survey spanning a redshift range of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 B. Ascaso , J. A. L. Aguerri , J. Varela , A. Cava , D. Bettoni , M. Moles , M. D'Onofrio

We study the surface brightness profiles of a sample of brightest cluster galaxies (BCGs) with 0.3<z<0.9. The BCGs are selected from the first Red-sequence Cluster Survey and an X-ray cluster survey. The surface brightness profiles of the…

Astrophysics of Galaxies · Physics 2015-06-22 Lei Bai , H. K. C. Yee , Renbin Yan , Eve Lee , David G. Gilbank , E. Ellingson , L. F. Barrientos , M. D. Gladders , B. C. Hsieh , I. H. Li

We present a study on the stellar mass growth of the progenitors of local massive galaxies with a variety of number density selections with $n\le1\times10^{-4}\,\rm{Mpc^{-3}}$ (corresponding to $M_*=10^{11.24}\rm{M_{\odot}}$ at z=0.3) in…

The details of the stellar mass assembly of brightest cluster galaxies (BCGs) remain an unresolved problem in galaxy formation. We have developed a novel approach that allows us to construct a sample of clusters that form an evolutionary…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Yen-Ting Lin , Mark Brodwin , Anthony H. Gonzalez , Paul Bode , Peter R. M. Eisenhardt , S. A. Stanford , Alexey Vikhlinin

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…

Brightest cluster galaxies (BCGs) have grown by accreting numerous smaller galaxies and can be used as tracers of cluster formation and evolution in the cosmic web. However, there is still a controversy on the main epoch of formation of…

Astrophysics of Galaxies · Physics 2021-05-12 Aline Chu , Florence Durret , Isabel Marquez

We identify close companions of Brightest Cluster Galaxies (BCGs) for the purpose of quantifying the rate at which these galaxies grow via mergers. By exploiting deep photometric data from the CFHTLS, we probe the number of companions per…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Louise O. V. Edwards , David R. Patton

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
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