Results 111 to 120 of about 1,040 (235)

JVLA and VLBA Study of the Merging Cool Core CHIPS 1911+4455 at z ∼ 0.5 Radio Emission from an Infant Active Galactic Nucleus and from a Rapidly Star-forming Brightest Cluster Galaxy

The Astrophysical Journal
Recent studies of galaxy clusters found peculiar cases at the boundary between noncool core and cool core systems. While unusual, these objects can help us understand the evolution of the most massive clusters. We investigated the role of active galactic
Francesco Ubertosi, Myriam Gitti, Pasquale Temi, Ewan O’Sullivan, Valeria Olivares, Gerrit Schellenberger, Fabrizio Brighenti, Marcello Giroletti   +7 more
doaj   +1 more source

A Multiwavelength Approach to Constraining the Merger Properties of ACT-CL J0034.4+0225

The Astrophysical Journal
ACT-CL J0034.4+0225 is a previously unrecognized merging galaxy cluster at z = 0.38588 ± 0.00068. Our primary evidence is provided by a 21 ks Chandra image that shows two surface brightness peaks separated by ∼49″ (259 kpc) surrounded by an extended ...
Peter Doze, Matt Hilton, John P. Hughes, Charles R. Keeton, Kenda Knowles, Kavilan Moodley, Tony Mroczkowski, Bruce Partridge, Catie A. Raney, Cristóbal Sifón, Sinenhlanhla Sikhosana, Cristian Vargas, Edward J. Wollack   +12 more
doaj   +1 more source

An imaging survey of a uniform sample of brightest cluster galaxies and intracluster light [PDF]

, 2006
P. Patel, S. Maddox, F. R. Pearce, A. Aragon-Salamanca, E. Conway   +4 more
openalex   +1 more source

Using Neural Networks to Automate the Identification of Brightest Cluster Galaxies in Large Surveys

The Astrophysical Journal
Brightest cluster galaxies (BCGs) lie deep within the largest gravitationally bound structures in existence. Though some cluster finding techniques identify the position of the BCG and use it as the cluster center, other techniques may not automatically ...
Patrick Janulewicz, Tracy M. A. Webb, Laurence Perreault-Levasseur   +2 more
doaj   +1 more source

NEAR-INFRARED ADAPTIVE OPTICS IMAGING OF INFRARED LUMINOUS GALAXIES: THE BRIGHTEST CLUSTER MAGNITUDE-STAR FORMATION RATE RELATION [PDF]

, 2013
Zara Randriamanakoto, Andrés Escala, P. Väisänen, E. Kankare, Jari Kotilainen, S. Mattila, S. D. Ryder   +6 more
openalex   +1 more source

Tidally induced bar-like galaxies in simulated clusters

Astronomy & Astrophysics
One of the scenarios for bar formation in galaxies involves their interaction with a more massive companion. The stellar component is then transformed from a disk into a bar-like prolate spheroid.
Łokas Ewa L.
doaj   +1 more source

Discovery of the X-ray selected galaxy cluster XMMU J0338.8+0021 at z = 1.49 - indications of a young system with a brightest galaxy in formation

, 2011
A. Nastasi, R. Fassbender, H. Böhringer, R. Šuhada, P. Rosati, D. Pierini, M. Verdugo, Joana Santos, A. Schwope, A. de Hoon, J. Kohnert, G. Lamer, M. Mühlegger, H. Quintana   +13 more
openalex   +2 more sources

Baryons in the outskirts of the X-ray brightest galaxy cluster [PDF]

, 2012
A. Simionescu, S. W. Allen, A. Mantz, N. Werner, Y. Takei   +4 more
openalex   +1 more source

On the hunt for ultramassive black holes in brightest cluster galaxies [PDF]

, 2012
J. Hlavacek-Larrondo, A. C. Fabian, A. C. Edge, M. T. Hogan   +3 more
openalex   +1 more source

AVOIDING PROGENITOR BIAS: THE STRUCTURAL AND MASS EVOLUTION OF BRIGHTEST GROUP AND CLUSTER GALAXIES IN HIERARCHICAL MODELS SINCEz≲ 1 [PDF]

, 2015
Francesco Shankar, Stewart Buchan, Alessandro Rettura, Vincent R. Bouillot, Jorge Moreno, Rossella Licitra, Mariangela Bernardi, Simona Mei, Begoña Ascaso, Ravi Sheth, Lauriane Delaye, Anand Raichoor   +11 more
openalex   +1 more source