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相关论文: Evolution of Brightest Cluster Galaxies in X-Ray C…

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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…

宇宙学与河外天体物理 · 物理学 2009-11-13 M. Bernardi

Surface brightness evolution has been detected in elliptical galaxies (consistent with passive evolution models of old stellar populations) and in disk galaxies (presumably due to enhanced star-formation rates). The rates of evolution in…

天体物理学 · 物理学 2007-05-23 David Schade

A study of the globular cluster systems of 23 brightest, or central, galaxies in 19 Abell clusters has recently been completed. This Letter presents some of the newly discovered correlations of the globular cluster specific frequency $S_N$…

天体物理学 · 物理学 2009-10-30 John P. Blakeslee

We present the results of a simple but robust morphological classification of a statis- tically complete sample of 108 of the most X-ray luminous clusters at 0.15 < z < 0.7 observed with Chandra. Our aims are to (a) identify the most…

宇宙学与河外天体物理 · 物理学 2015-06-03 Andrew W. Mann , Harald Ebeling

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…

天体物理学 · 物理学 2008-02-03 S. Andreon , B. Garilli , D. Maccagni

Considerable progress has been made over the last decade in the study of the evolutionary trends of the population of galaxy clusters in the Universe. In this review we focus on observations in the X-ray band. X-ray surveys with the ROSAT…

天体物理学 · 物理学 2008-11-26 Piero Rosati , Stefano Borgani , Colin Norman

We use the IllustrisTNG simulations to explore the dynamic scaling relation between massive clusters and their central galaxies (BCGs). The Illustris TNG300-1 simulation we use includes 280 massive clusters with $M_{200} > 10^{14}$…

宇宙学与河外天体物理 · 物理学 2022-06-01 Jubee Sohn , Margaret J. Geller , Mark Vogelsberger , Ivana Damjanov

Many brightest cluster galaxies (BCGs) at the centers of X-ray selected clusters exhibit clear evidence for recent star formation. However, studies of BCGs in optically-selected clusters show that star formation is not enhanced when…

星系天体物理 · 物理学 2011-03-22 Jing Wang , Roderik Overzier , Guinevere Kauffmann , Anja von der Linden , Xu Kong

We present UV broadband photometry and optical emission-line measurements for a sample of 32 Brightest Cluster Galaxies (BCGs) in clusters of the Representative XMM-Newton Cluster Structure Survey (REXCESS) with z = 0.06-0.18. The REXCESS…

Brightest Cluster Galaxies (BCGs) show exceptional properties over the whole electromagnetic spectrum. Their special location at the centres of galaxy clusters raises the question of the role of the environment on their radio properties. To…

I review recent observational progress in the search for and study of distant galaxy clusters in the X-ray band, with particular emphasis on the evolution of the abundance of X-ray clusters out to z~1. Several on-going deep X-ray surveys…

天体物理学 · 物理学 2007-05-23 Piero Rosati

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…

We present and discuss the X-ray luminosity function (XLF) of the ROSAT Brightest Cluster sample (BCS), an X-ray flux limited sample of clusters of galaxies in the northern hemisphere compiled from ROSAT All-Sky Survey data. The BCS allows…

天体物理学 · 物理学 2009-10-30 H. Ebeling , A. C. Edge , A. C. Fabian , S. W. Allen , C. S. Crawford , H. Boehringer

The dependence of the luminosity function of cluster galaxies on the evolutionary state of the parent cluster is still an open issue, in particular as concern the formation/evolution of the brightest cluster galaxies. We plan to study the…

宇宙学与河外天体物理 · 物理学 2015-06-03 R. Barrena , M. Girardi , W. Boschin , F. Mardirossian

Slit spectra, covering the rest frame near-ultraviolet and blue wavelength regions, are combined with moderately deep g and R images to investigate radial population gradients in the brightest components of six z=0.2 galaxy clusters…

天体物理学 · 物理学 2016-08-30 T. J. Davidge , M. Grinder

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…

星系天体物理 · 物理学 2022-02-02 G. Orellana-González , P. Cerulo , G. Covone , C. Cheng , R. Leiton , R. Demarco , Marie-Lou Gendron-Marsolais

The formation and evolution of local brightest cluster galaxies (BCGs) is investigated by determining the stellar populations and dynamics from the galaxy core, though the outskirts and into the intracluster light (ICL). Integral…

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,…

星系天体物理 · 物理学 2018-07-04 E. Contini , S. K. Yi , X. Kang

Clusters of galaxies are the largest gravitationally bound systems and therefore provide an important way of studying the formation and evolution of the large scale structure of the Universe. Cluster evolution can be inferred from…

We examine the colour-magnitude relation of approximately 5000 Brightest Cluster Galaxies (BCGs) in the Sloan Digital Sky Survey, and compare with non-BCG E/S0 galaxies. The colour-magnitude and colour-sigma (velocity dispersion) relations…

宇宙学与河外天体物理 · 物理学 2015-05-14 Nathan Roche , Mariangela Bernardi , Joseph Hyde