Results 41 to 50 of about 89,941 (303)

The challenging task of determining star formation rates: the case of a massive stellar burst in the brightest cluster galaxy of Phoenix galaxy cluster [PDF]

open access: yes, 2016
Star formation in galaxies at the center of cooling-flow galaxy clusters is an important phenomenon in the context of formation and evolution of massive galaxies in the Universe. Yet, star formation rates (SFRs) in such systems continue to be elusive. We
R. Mittal   +3 more
semanticscholar   +1 more source

The HectoMAP Cluster Survey: Spectroscopically Identified Clusters and their Brightest Cluster Galaxies (BCGs) [PDF]

open access: yesAstrophysical Journal, 2021
We apply a friends-of-friends (FoF) algorithm to identify galaxy clusters and we use the catalog to explore the evolutionary synergy between brightest cluster galaxies (BCGs) and their host clusters.
J. Sohn   +5 more
semanticscholar   +1 more source

The hierarchical formation of the brightest cluster galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
13 pages, 17 figures, MNRAS accepted ...
Jeremy Blaizot, Gabriella De Lucia
openaire   +3 more sources

Riding the wake of a merging galaxy cluster [PDF]

open access: yes, 2011
Using WHT OASIS integral field unit observations, we report the discovery of a thin plume of ionised gas extending from the brightest cluster galaxy in Abell 2146 to the sub-cluster X-ray cool core which is offset from the BCG by ~37 kpc.
A. C. Fabian   +54 more
core   +1 more source

THE DETERMINATION OF THE MORPHOLOGICAL TYPES OF GALAXY CLUSTERS USING CLUSTER CARTOGRAPHY

open access: yesOdessa Astronomical Publications, 2016
We discuss the possibility of using the Cluster Cartography set for the determined the morphological types of galaxy clusters. The applied morphological scheme was proposed by Panko (2013).
E. A. Panko, S. I. Emelyanov
doaj   +1 more source

Are Brightest Cluster Galaxies Special?

open access: yesResearch Notes of the AAS, 2023
A longstanding question when studying Brightest Cluster Galaxies (BCGs) and their evolution is whether their luminosities are statistical extremes of the luminosity distribution of other cluster member galaxies, or whether their luminosities follow a ...
Savannah Pobre   +3 more
semanticscholar   +1 more source

Coordinated Assembly of Brightest Cluster Galaxies [PDF]

open access: yesThe Astrophysical Journal Letters, 2018
Abstract Brightest Cluster Galaxies (BCGs) in massive dark matter halos are shaped by complex merging processes. We present a detailed stellar population analysis in the central region of Abell 3827 at z ∼ 0.1, including five-nucleus galaxies involved in a BCG assembly.
Meng Gu, Charlie Conroy, Gabriel Brammer
openaire   +3 more sources

Molecular gas in distant brightest cluster galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2020
The mechanisms governing the stellar mass assembly and star formation history of brightest cluster galaxies (BCGs) are still being debated. By means of new and archival molecular gas observations we investigate the role of dense megaparsec-scale environments in regulating the fueling of star formation in distant BCGs, through cosmic time.
Castignani, G.   +3 more
openaire   +6 more sources

Galactic cannibalism and CDM density profiles [PDF]

open access: yes, 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   +48 more
core   +2 more sources

Comparing Globular Cluster System Properties with Host Galaxy Environment

open access: yesThe Astrophysical Journal, 2023
We present Hubble Space Telescope photometry in the optical (F475X) and near-infrared (F110W) bands of the globular cluster (GC) systems of the inner halos of a sample of 15 massive elliptical galaxies.
Kate Hartman   +4 more
doaj   +1 more source

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