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In recent years the number of known galaxy clusters beyond z > 0.2 has increased drastically, with the release of multiple catalogs containing >30,000 optically-detected galaxy clusters over the range 0 < z < 0.6. Combining these catalogs…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Michael McDonald

We present a Chandra study of 38 X-ray luminous clusters of galaxies in the ROSAT Brightest Cluster Sample (BCS) that lie at z~0.15-0.4. We find that the majority of clusters at moderate redshift generally have smooth, relaxed morphologies…

Astrophysics · Physics 2009-09-17 F. E. Bauer , A. C. Fabian , J. S. Sanders , S. W. Allen , R. M. Johnstone

We examine the optical emission line properties of Brightest Cluster Galaxies (BCGs) selected from two large, homogeneous datasets. The first is the X-ray selected National Optical Astronomy Observatory Fundamental Plane Survey (NFPS), and…

Astrophysics · Physics 2008-11-26 L. O. V. Edwards , Michael J. Hudson , Michael L. Balogh , Russell J. Smith

We present new spectra of dominant galaxies in X-ray selected clusters, which combine with our previously published spectra to form a sample of 256 dominant galaxies in 215 clusters; 177 of these are members of the ROSAT Brightest Cluster…

Astrophysics · Physics 2009-09-17 C. S. Crawford , S. W. Allen , H. Ebeling , A. C. Edge , A. C. Fabian

We present integral field spectroscopy of the nebular line emission in a sample of 9 brightest cluster galaxies (BCGs). The sample was chosen to probe both cooling flow and non-cooling flow clusters, as well as a range of cluster X-ray…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 L. O. V. Edwards , C. Robert , M. Mollá , S. L. McGee

We investigate the evolution of the star formation rate in cluster galaxies. We complement data from the CNOC1 cluster survey (0.15<z<0.6) with measurements from galaxy clusters in the 2dF galaxy redshift survey (0.05<z<0.1) and…

Astrophysics · Physics 2009-11-10 Fumiaki Nakata , Richard G. Bower , Michael L. Balogh , David J. Wilman

Quillen et al. and O'Dea et al. carried out a Spitzer study of a sample of 62 brightest cluster galaxies (BCGs) from the ROSAT Brightest Cluster Sample chosen based on their elevated H-alpha flux. We present Hubble Space Telescope Advanced…

There is a strong spatial correlation between brightest cluster galaxies (BCGs) and the peak density and cooling rate of the intra-cluster medium (ICM). In this paper we combine integral field spectroscopy, CO observations and X-ray data to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 S. L. Hamer , A. C. Edge , A. M. Swinbank , R. J. Wilman , H. R. Russell , A. C. Fabian , J. S. Sanders , P. Salom

Brightest Cluster Galaxies (BCGs) are believed to have assembled most of their stars early in time and, therefore, should be passively evolving at low redshifts and appear "red-and-dead." However, there have been reports that a minority of…

Astrophysics of Galaxies · Physics 2018-02-07 James Runge , Haojing Yan

We present far-infrared (FIR) analysis of 68 Brightest Cluster Galaxies (BCGs) at 0.08 < z < 1.0. Deriving total infrared luminosities directly from Spitzer and Herschel photometry spanning the peak of the dust component (24-500um), we…

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…

We investigate the relationship between brightest cluster galaxies (BCGs) and their host clusters using a sample of nearby galaxy clusters from the Representative XMM Cluster Structure Survey (REXCESS). The sample was imaged with the…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 D. B. Haarsma , L. Leisman , M. Donahue , S. Bruch , H. Boehringer , J. H. Croston , G. W. Pratt , G. M. Voit , M. Arnaud , D. Pierini

Brightest cluster galaxies (BCGs) in the cores of galaxy clusters have distinctly different properties from other low redshift massive ellipticals. The majority of the BCGs in cool-core clusters show signs of active star formation. We…

We present a search for nuclear X-ray emission in the brightest cluster galaxies (BCGs) of a sample of groups and clusters of galaxies extracted from the Chandra archive. The exquisite angular resolution of Chandra allows us to obtain…

Astrophysics of Galaxies · Physics 2018-06-21 Lilan Yang , Paolo Tozzi , Heng Yu , Elisabeta Lusso , Massimo Gaspari , Roberto Gilli , Emanuele Nardini , Guido Risaliti

We present an analysis of the properties of the cluster of galaxies RXJ 1821.6+6827, or NEP 5281, at a redshift z=0.816+/-0.001. RXJ 1821.6+6827 was discovered during the optical identification of the X-ray sources in the North Ecliptic…

Astrophysics · Physics 2009-11-10 I. M. Gioia , A. Wolter , C. R. Mullis , J. P. Henry , H. Boehringer , U. G. Briel

We present measurements of 5-25 {\mu}m emission features of brightest cluster galaxies (BCGs) with strong optical emission lines in a sample of 9 cool-core clusters of galaxies observed with the Infrared Spectrograph on board the Spitzer…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Megan Donahue , Geneviève E. de Messières , Robert W. O'Connell , G. Mark Voit , Aaron Hoffer , Brian R. McNamara , Paul E. J. Nulsen

We present a new X-ray analysis mainly based on ROSAT HRI data. The HRI spatial resolution combined with an improved wavelet analysis method and with complementary radio and optical data provides new results compared to a previous paper…

Astrophysics · Physics 2007-05-23 G. B. Lima Neto , V. Pislar , F. Durret , D. Gerbal , E. Slezak

We present a multi-wavelength photometric and spectroscopic study of 42 Brightest Cluster Galaxies (BCGs) in two samples of galaxy clusters chosen for a gravitational lensing study. The study's initial sample combines 25 BCGs from the…

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…

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