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Related papers: CLASH-VLT: Abell~S1063. Cluster assembly history a…

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The analysis of galaxy properties and the relations among them and the environment, can be used to investigate the physical processes driving galaxy evolution. We study the cluster A209 by using the CLASH-VLT spectroscopic data combined…

Context: The shape of the mass density profiles of cosmological halos informs us of the nature of DM and DM-baryons interactions. Previous estimates of the inner slope of the mass density profiles of clusters of galaxies are in opposition…

Cosmology and Nongalactic Astrophysics · Physics 2020-05-13 B. Sartoris , A. Biviano , P. Rosati , A. Mercurio , C. Grillo , S. Ettori , M. Nonino , K. Umetsu , P. Bergamini , G. B. Caminha , M. Girardi

Galaxy physical properties are influenced by their environments, but the processes responsible for mass and environmental quenching and structural transformations remain debated. Galaxy clusters are ideal laboratories for investigating…

The galactic component in clusters is commonly thought to be generally nonrotating and in a dynamical state different from that of a collisionally relaxed system. In practice, a test of such a picture is often not available. We consider the…

Cosmology and Nongalactic Astrophysics · Physics 2023-08-11 Giovanni Ferrami , Giuseppe Bertin , Claudio Grillo , Amata Mercurio , Piero Rosati

In the effort to understand the link between the structure of galaxy clusters and their galaxy populations, we focus on MACSJ1206.2-0847 at z~0.44 and probe its substructure in the projected phase space through the spectrophotometric…

This series of papers explores the evolution of late-type galaxies in the rich cluster Abell 85. Here, we revisit the complex dynamical state of A 85 by using independent methods. We analyze the redshift distribution towards the cluster out…

Astrophysics · Physics 2009-11-13 H. Bravo-Alfaro , C. A. Caretta , C. Lobo , F. Durret , T. Scott

We have selected a sample of 88 nearby (z<0.1) galaxy clusters from the SDSS-DR4 with redshift information for the cluster members. We have derived global properties for each cluster, such as their mean recessional velocity, velocity…

Astrophysics · Physics 2019-08-19 J. A. L. Aguerri , R. Sanchez-Janssen , C. Munoz-Tunon

We present a detailed spatial and dynamical analysis of the central $\sim$~2.2~\h~Mpc region of the galaxy cluster Abell~521 (z=0.247), based on 238 spectra obtained at the 3.6~m Telescope of ESO and at the CFHT. From the analysis of the…

Astrophysics · Physics 2008-11-26 C. Ferrari , S. Maurogordato , A. Cappi , C. Benoist

We present a detailed analysis of the cluster of galaxies \a4. The optical data include a redshift catalogue of 466 galaxies, out of which 274 belong to the main cluster and a CCD photometric catalogue in a much smaller region, with 239 and…

Astrophysics · Physics 2007-05-23 F. Durret , C. Adami , D. Gerbal , V. Pislar

We present an analysis of the galaxy population of the intermediate X-ray luminosity galaxy cluster, Abell 1691, from SDSS and Galaxy Zoo data to elucidate the relationships between environment and galaxy stellar mass for a variety of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Kevin A. Pimbblet , Peter C. Jensen

We present a spectroscopic catalog of the neighboring massive clusters Abell 222 and Abell 223. The catalog contains the positions, redshifts, R magnitudes, V-R color, as well as the equivalent widths for a number of lines for 183 galaxies,…

Astrophysics · Physics 2009-11-07 J. P. Dietrich , D. I. Clowe , G. Soucail

We present the results of a study for galaxy orbits in galaxy clusters using a spectroscopic sample of galaxies in Sloan Digital Sky Survey (SDSS) and 2dF Galaxy Redshift Survey (2dFGRS). We have determined the member galaxies of Abell…

Astrophysics · Physics 2008-11-26 Ho Seong Hwang , Myung Gyoon Lee

The Abell 1689 galaxy cluster has recently become a subject of intensive study. Thanks to its intermediate redshift (z=0.183) its mass distribution can be reconstructed using numerous methods including gravitational lensing, galaxy…

Astrophysics · Physics 2009-11-13 Ewa L. Lokas , Francisco Prada , Radoslaw Wojtak , Mariano Moles , Stefan Gottloeber

Galaxies in clusters are strongly affected by their environment. They evolve according to several physical mechanisms that are active in clusters. Their efficiency can strongly depend on the orbital configuration of the galaxies. Our aim is…

Astrophysics of Galaxies · Physics 2017-04-12 J. A. L. Aguerri , I. Agulli , A. Diaferio , C. Dalla Vecchia

We present the results of a dynamical analysis of three rich, X-ray luminous galaxy clusters, Abell 222, Abell 223 and Abell 520, that are at intermediate redshifts. Our study is based on radial velocities for 71 cluster members,…

Astrophysics · Physics 2007-05-23 D. Proust , H. Cuevas , H. V. Capelato , L. Sodre , B. Tome Lehodey , O. Le Fevre , A. Mazure , .

We present spectroscopy of 880 galaxies within a 2-degree field around the massive, merging cluster Abell 3266. This sample, which includes 704 new measurements, was combined with the existing redshifts measurements to generate a sample of…

Astrophysics of Galaxies · Physics 2017-05-03 Siamak Dehghan , Melanie Johnston-Hollitt , Matthew Colless , Rowan Miller

We use an unprecedented data-set of about 600 redshifts for cluster members, obtained as part of a VLT/VIMOS large programme, to constrain the mass profile of the z=0.44 cluster MACS J1206.2-0847 over the radial range 0-5 Mpc (0-2.5 virial…

As part of a continuing study of the effect of cluster environment on the star formation properties of galaxies, we have undertaken an H-alpha objective prism survey of the nearby cluster, Abell 1060. We detect 33 galaxies in emission, 24…

Astrophysics · Physics 2009-10-30 S. M. Bennett , C. Moss

The connection of cluster mergers with the presence of extended, diffuse radio sources in galaxy clusters is still being debated. In this paper we aim to obtain new insights into the internal dynamics of Abell 959, showing evidence of a…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 W. Boschin , R. Barrena , M. Girardi

We compare V-band structural properties of cluster and field galaxies, to test whether much of the current cluster membership resulted from the transformation of infalling spirals into red early types. We use 140 galaxies from 3 z<0.6 Abell…

Astrophysics · Physics 2009-11-07 Daniel H. McIntosh , Hans-Walter Rix , Nelson Caldwell
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