Results 91 to 100 of about 87,085 (268)

STAR-FORMING BRIGHTEST CLUSTER GALAXIES AT 0.25 < z < 1.25: A TRANSITIONING FUEL SUPPLY [PDF]

, 2015
We present a multiwavelength study of the 90 brightest cluster galaxies (BCGs) in a sample of galaxy clusters selected via the Sunyaev Zel’dovich effect by the South Pole Telescope, utilizing data from various ground- and space-based facilities. We infer
M. McDonald, B. Stalder, M. Bayliss, S. Allen, D. Applegate, M. Ashby, M. Bautz, B. Benson, B. Benson, L. Bleem, L. Bleem, M. Brodwin, J. Carlstrom, I-Non Chiu, Shantanu Desai, Shantanu Desai, Anthony H. Gonzalez, J. Hlavacek-Larrondo, W. Holzapfel, D. Marrone, Eric D. Miller, C. Reichardt, B. Saliwanchik, A. Saro, T. Schrabback, S. Stanford, A. Stark, J. Vieira, A. Zenteno   +28 more
semanticscholar   +1 more source

Deep MOS Spectroscopy of NGC 1316 Globular Clusters

Galaxies, 2017
The giant elliptical galaxy NGC 1316 is the brightest galaxy in the Fornax cluster, and displays a number of morphological features that might be interpreted as an intermediate age merger remanent (∼3 Gyr).
Leandro A. Sesto, Favio R. Faifer, Juan C. Forte, Analía V. Smith Castelli   +3 more
doaj   +1 more source

Powerful Yet Lonely: Is 3C 297 a High-redshift Fossil Group?

The Astrophysical Journal Supplement Series, 2022
The environment of the high-redshift ( z = 1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas revealed by Chandra X-ray observations.
Valentina Missaglia, Juan P. Madrid, Mischa Schirmer, Francesco Massaro, Alberto Rodríguez-Ardila, Carlos J. Donzelli, Martell Valencia, Alessandro Paggi, Ralph P. Kraft, Chiara Stuardi, Belinda J. Wilkes   +10 more
doaj   +1 more source

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

Parsec Scale Properties of Brightest Cluster Galaxies. [PDF]

Proceedings of The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy and EVN Users Meeting — PoS(IX EVN Symposium), 2009
6 pages, 2 figures. Contributed talk. To be published in the proceedings of "The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy and EVN Users Meeting", September 23-26, 2008, Bologna ...
Gabriele Giovannini, Marcello Giroletti, Elisabetta Liuzzo   +2 more
openaire   +3 more sources

Testing the Collisionless Nature of Dark Matter with the Radial Acceleration Relation in Galaxy Clusters

The Astrophysical Journal, 2023
The radial acceleration relation (RAR) represents a tight empirical relation between the inferred total and baryonic centripetal accelerations, g _tot = GM _tot (< r )/ r ^2 and g _bar = GM _bar (< r )/ r ^2 , observed in galaxies and galaxy clusters ...
Sut-Ieng Tam, Keiichi Umetsu, Andrew Robertson, Ian G. McCarthy   +3 more
doaj   +1 more source

Far-ultraviolet morphology of star-forming filaments in cool core brightest cluster galaxies [PDF]

, 2015
We present a multiwavelength morphological analysis of star-forming clouds and filaments in the central (≲50 kpc) regions of 16 low-redshift (z < 0.3) cool core brightest cluster galaxies.
G. Tremblay, C. O’Dea, S. Baum, R. Mittal, M. McDonald, F. Combes, Yuan Li, B. McNamara, M. Bremer, T. Clarke, M. Donahue, A. Edge, A. Fabian, S. Hamer, M. Hogan, R. Oonk, A. Quillen, J. Sanders, P. Salom'e, G. Voit   +19 more
semanticscholar   +1 more source

O, Ne, Mg, and Fe Abundances in Hot X-Ray-emitting Halos of Galaxy Clusters, Groups, and Giant Early-type Galaxies with XMM-Newton RGS Spectroscopy

The Astrophysical Journal, 2023
Chemical elements in the hot medium permeating early-type galaxies, groups, and clusters make such objects an excellent laboratory for studying metal enrichment and cycling processes on the largest scales of the universe.
Kotaro Fukushima, Shogo B. Kobayashi, Kyoko Matsushita   +2 more
doaj   +1 more source

Environmental dependence of the structure of brightest cluster galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2005
11 pages, accepted for publication in ...
Sarah Brough, Sarah Brough, P. Lynam, Chris A. Collins, Robert G. Mann, Douglas Burke   +5 more
openaire   +5 more sources

The Dependence of Globular Cluster Number on Density for Abell Cluster Central Galaxies [PDF]

, 1997
A study of the globular cluster systems of 23 brightest, or central, galaxies in 19 Abell clusters has recently been completed. This Letter presents some of the newly discovered correlations of the globular cluster specific frequency $S_N$ in these ...
Blakeslee, John P.
core   +3 more sources