Results 31 to 40 of about 1,030,336 (214)

Are Dumbbell Brightest Cluster Members Signposts to Galaxy Cluster Activity? [PDF]

open access: yes, 2008
We assemble a sample of galaxy clusters whose brightest members are dumbbell galaxies and compare them with a control sample in order to investigate if they are the result of recent mergers.
Pimbblet, K.A., K. A. Pimbbleta
core   +1 more source

STAGES:the Space Telescope A901/2 Galaxy Evolution Survey [PDF]

open access: yes, 2008
We present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution across a wide range of environments and luminosity.
Bell, EF   +64 more
core   +2 more sources

The Evolution of AGN Activity in Brightest Cluster Galaxies

open access: yesThe Astronomical Journal, 2022
Abstract We present the results of an analysis of Wide-field Infrared Survey Explorer (WISE) observations of the full 2500 deg2 South Pole Telescope (SPT)-Sunyaev–Zel’dovich cluster sample. We describe a process for identifying active galactic nuclei (AGN) in brightest cluster galaxies (BCGs) based on WISE mid-IR color and redshift ...
Taweewat Somboonpanyakul   +81 more
openaire   +11 more sources

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 ...
Coziol, R.   +4 more
openaire   +2 more sources

Sub-kpc radio jets in the brightest central galaxy of the cool-core galaxy cluster RXJ1720.1+2638 [PDF]

open access: yes, 2022
The cool-core galaxy cluster RXJ1720.1+2638 hosts extended radio emission near the cluster core, known as a minihalo. The origin of this emission is still debated and one piece of the puzzle has been the question of whether the supermassive black hole in
Grainge, Keith J B   +16 more
core   +2 more sources

A detection of wobbling brightest cluster galaxies within massive galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
A striking signal of dark matter beyond the standard model is the existence of cores in the centre of galaxy clusters. Recent simulations predict that a Brightest Cluster Galaxy (BCG) inside a cored galaxy cluster will exhibit residual wobbling due to previous major mergers, long after the relaxation of the overall cluster.
Harvey, David   +3 more
openaire   +3 more sources

Studying Cosmic Evolution with the XMM-Newton Distant Cluster Project [PDF]

open access: yes, 2007
Investigating X-ray luminous galaxy clusters at high redshift (z>~1) provides a challenging but fundamental constraint on evolutionary studies of the largest virialized structures in the Universe, the baryonic matter component in form of the hot ...
Fassbender, Rene
core   +1 more source

Brightest Cluster Galaxies in Strongly-Lensing Galaxy Clusters and Richness- and Redshift-Matched Samples [PDF]

open access: yes, 2022
We present a statistical analysis of 588 strongly-lensing galaxy clusters and groups, selected from publicly-available imaging sky surveys primarily by the COOL-LAMPS (ChicagO Optically selected strong Lenses — Located At the Margins of Public Surveys ...
Levine, Benjamin
core   +1 more source

Environmental dependence of the structure of brightest cluster galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2005
11 pages, accepted for publication in ...
Brough, Sarah   +4 more
openaire   +3 more sources

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.
Barbara S. Ryden   +2 more
openaire   +1 more source

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