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Related papers: Evolution of the brightest cluster galaxies: the i…

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We examine the changes in the properties of galactic bulges and discs with environment for a volume-limited sample of 12500 nearby galaxies from SDSS. We focus on galaxies with classical bulges. Classical bulges seem to have the same…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 C. N. Lackner , J. E. Gunn

We test the hypothesis that metal-poor globular clusters form within disk galaxies at redshifts z>3. Numerical simulations demonstrate that giant gas clouds, which are cold and dense enough to produce massive star clusters, assemble…

Astrophysics · Physics 2010-11-11 Jose L. Prieto , Oleg Y. Gnedin

In the last decade, extended stellar clusters with masses in the range from a few 10^4 to 10^8 M_sun have been found in various types of galaxies in different environments. Objects with masses comparable to normal globular clusters (GCs)…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 R. C. Bruens , P. Kroupa , M. Fellhauer , M. Metz , P. Assmann

We study the evolution of globular cluster systems (GCS) in elliptical galaxies and explore the dependence of their main properties on the mass and the size of the host galaxy.The dependence of the evolution of the GCS mass function (GCMF),…

Astrophysics · Physics 2008-11-26 E. Vesperini

We present cosmological N-body resimulations of the assembly of the Brightest Cluster Galaxies (BCGs) in rich clusters. At $z=2$ we populate dark matter subhalos with self-gravitating stellar systems whose abundance and structure match…

Astrophysics of Galaxies · Physics 2014-09-09 Chervin F. P. Laporte , Simon D. M. White

We present near-infrared K-band spectroscopy of 21 elliptical or cD Brightest Cluster Galaxies (BCGs), for which we have measured the strength of the 2.293 micron CO stellar absorption feature. We find that the strength of this feature is…

Astrophysics · Physics 2009-10-31 P. A. James , B. Mobasher

We investigate the evolution in the distribution of surface brightness, as a function of size, for elliptical and S0 galaxies in the two clusters RDCS J1252.9-2927, z=1.237 and RX J0152.7-1357, z=0.837. We use multi-color imaging with the…

Recently, very massive compact stellar systems have been discovered in the intracluster regions of galaxy clusters and in the nuclear regions of late-type disk galaxies. It is unclear how these compact stellar systems -- known as…

Astrophysics · Physics 2009-11-10 Kenji Bekki , Warrick J. Couch , Michael J. Drinkwater , Yasuhiro Shioya

We measure the Petrosian structural properties of 33 brightest cluster galaxies (BCGs) at redshifts z<0.1 in X-ray selected clusters with a wide range of X-ray luminosities. We find that some BCGs show distinct signatures in their Petrosian…

Astrophysics · Physics 2016-08-30 S. Brough , C. Collins , D. Burke , P. Lynam , R. Mann

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 discuss the environmental dependence of galaxy evolution based on deep panoramic imaging of two distant clusters taken with Suprime-Cam as part of the PISCES project. By combining with the SDSS data as a local counterpart for comparison,…

Galaxies infalling into clusters undergo both star-formation quenching and morphological transformation due to environmental effects. We investigate these processes and their timescales using a local sample of 20,191 cluster and 11,674…

Astrophysics of Galaxies · Physics 2024-06-21 V. M. Sampaio , R. R. de Carvalho , A. Aragón-Salamanca , M. R. Merrifield , I. Ferreras , D. J. Cornwell

We present a study of the color evolution of elliptical and S0 galaxies in six clusters of galaxies inside the redshift range 0.78 < z < 1.27. For each cluster, we used imaging from the Hubble Space Telescope to determine morphological…

Astrophysics · Physics 2009-11-10 B. P. Holden , S. A. Stanford , P. Eisenhardt , M. Dickinson

Studying bright ($M_B<-20$), intermediate-redshift ($0.4<z<1.0$), disc dominated ($n_B<2.5$) galaxies from HST/ACS and WFC3 in Chandra Deep Field South, in rest-frame B and I-band, we found a new class of bulges which is brighter and more…

Astrophysics of Galaxies · Physics 2019-06-03 Sonali Sachdeva , Kanak Saha

The globular cluster population in M87 has decreased measurably through dynamical evolution caused by relaxation, binary heating and time-dependent tidal perturbation. For fundamental plane ellipticals in general, cluster populations evolve…

Astrophysics · Physics 2015-06-24 C. Murali , M. D. Weinberg

We study the luminosity gap, dm12, between the first and second ranked galaxies in a sample of 59 massive galaxy clusters, using data from the Hale Telescope, HST, Chandra, and Spitzer. We find that the dm12 distribution, p(dm12), is a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Graham P. Smith , Habib G. Khosroshahi , A. Dariush , A. J. R. Sanderson , T. J. Ponman , J. P. Stott , C. P. Haines , E. Egami , D. P. Stark

We report the discovery of significant localized structures in the projected two-dimensional (2D) spatial distributions of the Globular Cluster (GC) systems of the ten brightest galaxies in the Virgo Cluster. We use catalogs of GCs…

Astrophysics of Galaxies · Physics 2015-05-27 R. D'Abrusco , G. Fabbiano , A. Zezas

[abridged] We analyze a sample of 9 massive clusters at 0.4<z<0.6 observed with MegaCam in 4 photometric bands (g,r,i,z) from the core to a radius of 5 Mpc (~4000 galaxies). Galaxy cluster candidates are selected using photometric redshifts…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. Huertas-Company , G. Foex , G. Soucail , R. Pello

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…

Brightest cluster galaxies (BCGs) are usually quiescent, but many exhibit star formation. Here we exploit the opportunity provided by rest-frame UV imaging of galaxy clusters in the CLASH (Cluster Lensing and Supernovae with Hubble)…