Are Dumbbell Brightest Cluster Members Signposts to Galaxy Cluster Activity? [PDF]
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]
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
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]
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]
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]
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]
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]
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]
11 pages, accepted for publication in ...
Brough, Sarah +4 more
openaire +3 more sources
The shapes of brightest cluster galaxies
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

