Results 71 to 80 of about 87,085 (268)

The evolution in the stellar mass of brightest cluster galaxies over the past 10 billion years [PDF]

open access: yes, 2016
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 universe, namely
S. Bellstedt   +19 more
semanticscholar   +1 more source

The shapes of brightest cluster galaxies

open access: yesThe Astrophysical Journal, 1993
The mean isophotal axis ratios are computed for a complete sample of 119 brightest cluster galaxies (BCGs) in Abell clusters. The cumulative distribution function F(q) of axis ratios for the BCGs differs from F(q) for a sample of ordinary elliptical galaxies at only the P=0.14 probability level, as measured by a Kolmogorov Smirnov test.
Tod R. Lauer   +2 more
openaire   +2 more sources

Stellar populations in brightest cluster galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractWe present the results of an investigation of a large sample of brightest cluster galaxies (BCGs), their kinematic and stellar population properties and the relationships between these and the properties of the host clusters. We have obtained high signal-to-noise, long-slit spectra of 49 BCGs in the nearby Universe with the Gemini and WHT ...
Loubser, S   +3 more
openaire   +1 more source

MORPHOLOGICAL TYPES OF 254 RICH PF GALAXY CLUSTERS

open access: yesOdessa Astronomical Publications, 2014
We determined the morphological types for 254 rich galaxy clusters from the PF Catalogue of Galaxy Clusters and Groups. The data set contains the PF galaxy clusters, which have no ACO coinciding ones.
E. A. Panko   +2 more
doaj   +1 more source

Radial gradients in initial mass function sensitive absorption features in the Coma brightest cluster galaxies [PDF]

open access: yes, 2016
Using the Oxford ShortWavelength Integral Field specTrograph, we trace radial variations of initial mass function (IMF)-sensitive absorption features of three galaxies in the Coma cluster.
S. Zieleniewski   +4 more
semanticscholar   +1 more source

THE EVOLUTION OF BRIGHTEST CLUSTER GALAXIES IN A HIERARCHICAL UNIVERSE [PDF]

open access: yesThe Astrophysical Journal, 2012
We investigate the evolution of Brightest Cluster Galaxies (BCGs) from redshift z~1.6 to z~0. We use the semi-analytic model of Croton et al. (2006) with a new spectro-photometric model based on the Maraston (2005) stellar populations and a new recipe for the dust extinction. We compare the model predictions of the K-band luminosity evolution and the J-
Tonini, Chiara   +4 more
openaire   +5 more sources

STAR FORMATION IN INTERMEDIATE REDSHIFT 0.2 < z < 0.7 BRIGHTEST CLUSTER GALAXIES [PDF]

open access: yes, 2016
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 Cluster Lensing and
K. Cooke   +5 more
semanticscholar   +1 more source

The luminosity function of cluster galaxies. II. Data reduction procedures applied to the cluster Abell 496 [PDF]

open access: yes, 1999
We initiated a large project aimed to estimate the Luminosity Function of galaxies in clusters and to evaluate its relation to cluster morphology. With this paper we deem necessary to outline the general procedures of the data reduction and details of ...
Chincarini, G.   +3 more
core   +2 more sources

Where does the gas fueling star formation in brightest cluster galaxies originate [PDF]

open access: yes, 2016
Aims. We investigate the relationship between X-ray cooling and star formation in brightest cluster galaxies (BCGs). Methods. We present an X-ray spectral analysis of the inner regions, 10 40 kpc, of six nearby cool core clusters (z < 0:35) observed with
S. Molendi   +8 more
semanticscholar   +1 more source

THE DYNAMICAL STATE OF BRIGHTEST CLUSTER GALAXIES AND THE FORMATION OF CLUSTERS [PDF]

open access: yesThe Astronomical Journal, 2009
114 pages, 9 figures, full version of tables 1 and 2; accepted to appear in ...
Roger Coziol   +4 more
openaire   +3 more sources

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