Results 121 to 130 of about 87,085 (268)

Evolution of the brightest cluster galaxies: the influence of morphology, stellar mass and environment [PDF]

, 2015
Using a sample of 425 nearby brightest cluster galaxies (BCGs) from von der Linden et al., we study the relationship between their internal properties (stellar masses, structural parameters and morphologies) and their environment.
Dongyao Zhao, A. Arag'on-Salamanca, C. Conselice   +2 more
semanticscholar   +1 more source

GLOBULAR CLUSTER SYSTEMS IN BRIGHTEST CLUSTER GALAXIES: A NEAR-UNIVERSAL LUMINOSITY FUNCTION? [PDF]

, 2014
We present the first results from our Hubble Space Telescope brightest cluster galaxy (BCG) survey of seven central supergiant cluster galaxies and their globular cluster (GC) systems.
W. Harris, W. Morningstar, O. Gnedin, Heather O'Halloran, J. Blakeslee, B. Whitmore, P. Côté, D. Geisler, E. Peng, J. Bailin, Barry Rothberg, R. Cockcroft, Regina Barber DeGraaff   +12 more
semanticscholar   +1 more source

SPT-CL J2215−3537: A Massive Starburst at the Center of the Most Distant Relaxed Galaxy Cluster

The Astrophysical Journal, 2023
We present the discovery of the most distant, dynamically relaxed cool core cluster, SPT-CL J2215−3537 (SPT2215), and its central brightest cluster galaxy (BCG) at z = 1.16.
Michael S. Calzadilla, Lindsey E. Bleem, Michael McDonald, Michael D. Gladders, Adam B. Mantz, Steven W. Allen, Matthew B. Bayliss, Anna-Christina Eilers, Benjamin Floyd, Julie Hlavacek-Larrondo, Gourav Khullar, Keunho J. Kim, Guillaume Mahler, Keren Sharon, Taweewat Somboonpanyakul, Brian Stalder, Antony A. Stark, SPT collaboration   +17 more
doaj   +1 more source

The link between morphology and structure of brightest cluster galaxies: automatic identification of cDs [PDF]

, 2015
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 per cent of the BCGs are cD galaxies, ∼13 per cent are ellipticals ...
Dongyao Zhao, A. Arag'on-Salamanca, C. Conselice   +2 more
semanticscholar   +1 more source

Stellar formation in Brightest Cluster Galaxies [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractWe study the interplay between stellar population of the Brightest Cluster Galaxies (BCG) and cluster global properties. We use X-ray properties from Chandra, ROSAT and ASCA observations and BCGs spectra from SDSS-DR6. Using STARLIGHT we determined the star formation history of the BCGs and look for relations with the intra-cluster gas ...
Gastão B. Lima Neto, Tatiana Zapata Pichinao   +1 more
openaire   +2 more sources

Evolution of Massive Red Galaxies in Clusters from z = 1.0 to z = 0.3

The Astronomical Journal
A critical issue in studying the evolution of galaxy clusters is to find ways that enable meaningful comparisons of clusters observed at different redshifts, as well as in various stages of their growth.
Yen-Ting Lin, Kai-Feng Chen, Tsung-Chi Chen, Chen-Yu Chuang, Masamune Oguri   +4 more
doaj   +1 more source

The transformation of Spirals into S0 galaxies in the cluster environment

Frontiers in Astronomy and Space Sciences, 2015
We discuss the observational evidences of the morphological transformation of Spirals into S0 galaxies in the cluster environment exploiting two big databases of galaxy clusters: WINGS (0 ...
Mauro eD'onofrio, Paola eMarziani, Lucio eBuson   +2 more
doaj   +1 more source

The accretion histories of brightest cluster galaxies from their stellar population gradients [PDF]

, 2015
We analyse the spatially-resolved stellar populations of 9 local (z 10 11:3 M ) from the ATLAS 3D survey (median [Z/H] = 0:04 0:07, [Z/H] = 0:19 0:1). However, massive early-type galaxies from ATLAS 3D have consistently old ages (median Age = 12:0 3:8 ...
P. Oliva-Altamirano, S. Brough, Jimmy, K. Tran, W. Couch, R. McDermid, C. Lidman, A. V. D. Linden, Rob Sharp Centre for AstrophysicsSupercomputing, P. SwinburneUniversityofTechnology.AustralianAstronom, C. N. Y. I. F. T. Physics, Astronomy, D. Physics, T. F. D. O. PhysicsAstronomy, Macquarie University. Dark Cosmology Centre, Niels Bohr Institute, U. O. O. Astrophysics, Cosmology, S. W. S. O. Physics, S. A. I. O. AstronomyAstrophysics, Australian National University   +20 more
semanticscholar   +1 more source

Discrepancies between JWST Observations and Simulations of Quenched Massive Galaxies at z > 3: A Comparative Study with IllustrisTNG and ASTRID

The Astrophysical Journal
Recent JWST observations have uncovered an unexpectedly large population of massive quiescent galaxies at z  > 3. Using the cosmological simulations IllustrisTNG and ASTRID , we identify analogous galaxies and investigate their abundance, formation ...
Emma Jane Weller, Fabio Pacucci, Yueying Ni, Lars Hernquist, Minjung Park   +4 more
doaj   +1 more source

GLOBULAR CLUSTER SYSTEMS IN BRIGHTEST CLUSTER GALAXIES. II. NGC 6166 [PDF]

, 2015
We present new deep photometry of the globular cluster system (GCS) around NGC 6166, the central supergiant galaxy in Abell 2199. Hubble Space Telescope data from the Advanced Camera for Surveys and WFC3 cameras in F475W and F814W are used to determine ...
W. Harris, J. Blakeslee, B. Whitmore, O. Gnedin, D. Geisler, Barry Rothberg   +5 more
semanticscholar   +1 more source