Results 61 to 70 of about 2,234,166 (364)

Internal dynamics of the galaxy cluster Abell 545

, 2011
Diffuse radio emission in galaxy clusters, and their connection with cluster mergers, are still debated. We seek to explore the internal dynamics of the radio halo cluster Abell 545.
Abell, Anders, Ashman, Bacchi, Bardelli, Barrena, Barrena, Barrena, Beers, Beers, Beers, Beers, Beers, Bekki, Bell, Bertin, Binggelli, Bird, Biviano, Bonafede, Boschin, Boschin, Boschin, Boschin, Brunetti, Bullock, Buote, Buote, Böhringer, Carlberg, Cassano, Cassano, Cassano, Cassano, Cassano, Cavaliere, Chilingarian, Chilingarian, D. Eckert, Danese, David, den Hartog, Dolag, Dolag, Donnert, Dressler, Dubinsky, Ellingson, Ensslin, Ensslin, Ensslin, Fadda, Fasano, Ferrari, Ferrari, Ferrari, Finoguenov, Fukugita, Giovannini, Giovannini, Girardi, Girardi, Girardi, Girardi, Girardi, Girardi, Goto, Govoni, Hashimoto, Henriksen, Henry, Hoeft, Kalberla, Kennicutt, Kneib, Landolt, Leccardi, Leccardi, Limber, Lin, Liu, Loeb, M. Girardi, M. Rossetti, Malumuth, Markevitch, Markevitch, Mastropietro, Menci, Merritt, Million, Mushotzky, Navarro, Niederste-Ostholt, Nieto, Okabe, Owers, Pinkney, Pisani, Pisani, Quintana, R. Barrena, Ramella, Ramella, Ricker, Rines, Roettiger, Roettiger, Roettiger, Rossetti, Rudick, S. De Grandi, Salinas, Salinas, Sarazin, Sastry, Schlegel, Schneider, Springel, Struble, Struble, The, Tonry, Tribble, van Dokkum, W. Boschin, Wainer, West, White   +128 more
core   +1 more source

Galactic cannibalism and CDM density profiles [PDF]

, 2004
Using N-body simulations we show that the process of formation of the brightest cluster galaxy through dissipationless galactic cannibalism can affect the inner cluster dark matter density profile.
Barnes, Bartelmann, Bertin, Binney, Blumenthal, C. Nipoti, de Blok, Dehnen, Dehnen, Dubinski, El-Zant, Gavazzi, Ghigna, Gnedin, Hernquist, Jesseit, Kazantzidis, Kelson, Kochanek, L. Ciotti, Lewis, Londrillo, M. Stiavelli, Ma, Merritt, Mo, Moore, Natarajan, Navarro, Navarro, Nipoti, Nipoti, Nipoti, Ostriker, Power, Ricotti, Rosati, Salucci, Sand, Sand, Simon, Smith, Spergel, Springel, Subramanian, T. Treu, Treu, van den Bosch, Zhang   +48 more
core   +2 more sources

The reversal of the SF–density relation in a massive, X-ray-selected galaxy cluster at z = 1.58: results from Herschel [PDF]

, 2014
Dusty, star-forming galaxies have a critical role in the formation and evolution of massive galaxies in the Universe. Using deep far-infrared imaging in the range 100-500um obtained with the Herschel telescope, we investigate the dust-obscured star ...
Joana S. Santos . Bruno Altieri, I. Valtchanov, A. Nastasi, H. Bohringer, G. Cresci, D. Elbaz, R. Fassbender, P. Rosati, P. Tozzi, M. Verdugo   +9 more
semanticscholar   +1 more source

Hubble Frontier Fields: a high-precision strong-lensing analysis of the massive galaxy cluster Abell 2744 using ∼180 multiple images [PDF]

, 2014
We present a high-precision mass model of galaxy cluster Abell 2744, based on a strong gravitational-lensing analysis of the Hubble Space Telescope Frontier Fields (HFF) imaging data, which now include both Advanced Camera for Surveys and Wide Field ...
M. Jauzac, J. Richard, E. Jullo, B. Cl'ement, M. Limousin, J. Kneib, H. Ebeling, S. Rodney, P. Natarajan, H. Atek, R. Massey, D. Eckert, E. Egami, M. Rexroth   +13 more
semanticscholar   +1 more source

DETAILED MORPHOLOGY OF THE RICH CONCENTRATED GALAXY CLUSTERS

Odessa Astronomical Publications, 2018
The results of the detailed analysis of the 2D distribution of galaxies in 28 rich galaxy clusters with significant concentration to the cluster center are present.
E. Panko, A. Sirginava, A. Stepaniuk
doaj   +1 more source

Alignment and morphology of elliptical galaxies: the influence of the cluster tidal field

, 1994
We investigate two possible effects of the tidal field induced by a spherical cluster on its elliptical galaxy members: the modification of the ellipticity of a spherical galaxy and the isophotal alignment in the cluster radial direction of a misaligned ...
Ciotti, L., Dutta, S. N.
core   +1 more source

Constraining galaxy cluster temperatures and redshifts with eROSITA survey data [PDF]

, 2014
Context. The nature of dark energy is imprinted in the large-scale structure of the Universe and thus in the mass and redshift distribution of galaxy clusters.
K. Borm, T. Reiprich, I. Mohammed, L. Lovisari   +3 more
semanticscholar   +1 more source

Cosmology with Clusters of Galaxies [PDF]

, 2008
In this Chapter I review the role that galaxy clusters play as tools to constrain cosmological parameters. I will concentrate mostly on the application of the mass function of galaxy clusters, while other methods, such as that based on the baryon fraction, are covered by other Chapters of the book.
openaire   +4 more sources

Galaxies and subhaloes in ΛCDM galaxy clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
6 pages, 2 figures, accepted for publication in Monthly Notices Letters.
G. De Lucia, Adrian Jenkins, Liang Gao, Simon D. M. White   +3 more
openaire   +4 more sources

Simulating the formation of a proto-cluster at z~2

, 2008
We present results from two high-resolution hydrodynamical simulations of proto-cluster regions at z~2.1. The simulations have been compared to observational results for the socalled Spiderweb galaxy system, the core of a putative proto-cluster region at
Borgani, S., De Lucia, G., Dolag, K., Murante, G., Saro, A., Tornatore, L.   +5 more
core   +1 more source