English
Related papers

Related papers: Ultraviolet Morphologies and Star-Formation Rates …

200 papers

We use semi-analytic techniques to study the formation and evolution of brightest cluster galaxies (BCGs). We show the extreme hierarchical nature of these objects and discuss the limits of simple ways to capture their evolution. In a model…

Astrophysics · Physics 2008-11-26 Gabriella De Lucia , Jeremy Blaizot

We use the Sloan Digital Sky Survey to construct a sample of 625 brightest group and cluster galaxies (BCGs) together with control samples of non-BCGs matched in stellar mass, redshift, and color. We investigate how the systematic…

Astrophysics · Physics 2008-11-26 Anja von der Linden , Philip N. Best , Guinevere Kauffmann , Simon D. M. White

Brightest cluster galaxies (BCGs) are among the most massive galaxies in the Universe. Their star formation (SF) history and stellar mass assembly are debated. Recent studies suggest the presence of an emerging population of…

We study a large sample of 625 low-redshift brightest cluster galaxies (BCGs) and link their morphologies to their structural properties. We derive visual morphologies and find that ~57% of the BCGs are cD galaxies, ~13% are ellipticals,…

Astrophysics of Galaxies · Physics 2016-08-07 Dongyao Zhao , Alfonso Aragón-Salamanca , Christopher J. Conselice

We present UV (2300 Ang) images, obtained with the HST Faint Object Camera, of the central 20'' of five galaxies containing circumnuclear star-forming rings. The five galaxies are from a well-defined sample of 103 normal, nearby galaxies we…

We report a systematic multi-wavelength investigation of environments of the brightest cluster galaxies (BCGs), using the X-ray data from the Chandra archive, and optical images taken with 34'x 27' field-of-view Subaru Suprime-Cam. Our goal…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 Yasuhiro Hashimoto , J. Patrick Henry , Hans Boehringer

Brightest cluster galaxies (BCG) are today passive and very massive galaxies at the center of their clusters, still accreting mass through swallowing companions, and flows of cold gas, regulated by radio-mode active galactic nucleus (AGN)…

Astrophysics of Galaxies · Physics 2025-08-20 G. Castignani , F. Combes , P. Salomé , A. Edge , P. Jablonka

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) are very massive elliptical galaxies found at the centers of clusters. Their study gives clues on the formation and evolution of the clusters in which they are embedded. We analysed here in a homogeneous…

Astrophysics of Galaxies · Physics 2022-10-05 Aline Chu , Florian Sarron , Florence Durret , Isabel Márquez

We used the HST WFPC2 to obtain I-band images of the centers of 81 brightest cluster galaxies (BCGs), drawn from a volume-limited sample of nearby BCGs. The images show a rich variety of morphological features, including multiple or double…

We present the first results from our HST Brightest Cluster Galaxy (BCG) survey of seven central supergiant cluster galaxies and their globular cluster (GC) systems. We measure a total of 48000 GCs in all seven galaxies, representing the…

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…

Astrophysics of Galaxies · Physics 2022-02-02 G. Orellana-González , P. Cerulo , G. Covone , C. Cheng , R. Leiton , R. Demarco , Marie-Lou Gendron-Marsolais

Despite their reputation as being "red and dead", the unique environment inhabited by Brightest Cluster Galaxies (BCGs) can often lead to a self-regulated feedback cycle between radiatively cooling intracluster gas and star formation and…

We present a joint analysis of near-ultraviolet (NUV) data from the GALEX mission and (optical) colour profiles for a sample of 7 Brightest Cluster Galaxies (BCGs) in the Canadian Cluster Comparison Project. We find that every BCG which has…

Astrophysics · Physics 2009-11-13 A. Pipino , S. Kaviraj , C. Bildfell , A. Babul , H. Hoekstra , J. Silk

We investigate the formation of brightest cluster galaxies (BCGs) in the TNG300 cosmological simulation of the IllustrisTNG project. Our cluster sample consists of 700 haloes with $M_{200} \geq 5 \times 10^{13} \, \mathrm{M}_{\odot}$ at…

We examine ultraviolet halos around a sample of highly inclined galaxies within 25 Mpc to measure their morphology and luminosity. Despite contamination from galactic light scattered into the wings of the point-spread function, we find that…

Astrophysics of Galaxies · Physics 2016-12-14 Edmund Hodges-Kluck , Julian Cafmeyer , Joel Bregman

A fraction of brightest cluster galaxies (BCGs) shows bright emission in the UV and the blue part of the optical spectrum, which has been interpreted as evidence of recent star formation. Most of these results are based on the analysis of…

Astrophysics of Galaxies · Physics 2016-01-27 S. I. Loubser , A. Babul , H. Hoekstra , A. Mahdavi , M. Donahue , C. Bildfell , G. M. Voit

We investigate the photometric properties of the early type Brightest Cluster Galaxies (BCGs) using a carefully selected sample of 85 BCGs from the C4 cluster catalogue with redshift less than 0.1. We perform accurate background…

Astrophysics · Physics 2009-11-13 F. S. Liu , X. Y. Xia , Shude Mao , Hong Wu , Z. G. Deng

The K-band Hubble diagram for a sample of brightest cluster galaxies (BCGs) in the redshift range 0<z<1 shows a very small scatter (0.3 magnitudes r.m.s). The BCGs exhibit very little luminosity evolution in this redshift range: if q_0=0.0…

Astrophysics · Physics 2007-05-23 A. Aragon-Salamanca , C. M. Baugh , G. Kauffmann