Results 31 to 40 of about 59,378 (245)
The evolution of brightest cluster galaxies in the nearby Universe – I. Colours and stellar masses from the Sloan Digital Sky Survey and Wide Infrared Survey Explorer [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present a study of the evolution of brightest cluster galaxies (BCGs) in a sample of clusters at $0.05 \leq ...
P. Cerulo, G. Orellana, G. Covone
semanticscholar +1 more source
The ultraviolet upturn in brightest cluster galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 AbstractThis study is part of a series devoted to the investigation of a large sample of brightest cluster galaxies (BCGs), their properties and the relationships between these and the properties of the host clusters. In this paper, we compare the stellar population properties derived from high signal-to-noise, optical long-slit spectra with the GALEX ...
Patricia Sanchez-Blazquez +3 more
openaire +7 more sources
Clocking the formation of today’s largest galaxies: wide field integral spectroscopy of brightest cluster galaxies and their surroundings [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The formation and evolution of local brightest cluster galaxies (BCGs) is investigated by determining the stellar populations and dynamics from the galaxy core, through the outskirts and into the intracluster light (ICL).
L. Edwards +10 more
semanticscholar +1 more source
Brightest Cluster Galaxy Profile Shapes [PDF]
The Astrophysical Journal, 1996 To appear in Ap.J., 16 ...
Graham, Alister +3 more
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CLASH-VLT: The Inner Slope of the MACS J1206.2-0847 Dark Matter Density Profile
The Astrophysical Journal, 2023 The inner slope ( γ _DM ) of the dark matter (DM) density profile of cosmological halos carries information about the properties of DM and/or baryonic processes affecting the halo gravitational potential.
Andrea Biviano +9 more
doaj +1 more source
A 13CO Detection in a Brightest Cluster Galaxy [PDF]
The Astrophysical Journal, 2017 Abstract We present ALMA Cycle 4 observations of CO(1-0), CO(3-2), and 13CO(3-2) line emission in the brightest cluster galaxy (BCG) of RXJ0821+0752. This is one of the first detections of 13CO line emission in a galaxy cluster. Half of the CO(3-2) line emission originates from two clumps of molecular gas that are spatially offset from ...
Brian R. McNamara +13 more
openaire +6 more sources
Ellipticity of brightest cluster galaxies as tracer of halo orientation and weak-lensing mass bias [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Weak-lensing measurements of the masses of galaxy clusters are commonly based on the assumption of spherically symmetric density profiles. Yet, the cold dark matter model predicts the shapes of dark matter haloes to be triaxial.
R. Herbonnet +6 more
semanticscholar +1 more source
Brightest Cluster Galaxy Alignments in Merging Clusters [PDF]
The Astrophysical Journal, 2019 Abstract The orientations of brightest cluster galaxies (BCGs) and their host clusters tend to be aligned, but the mechanism driving this is not clear. To probe the role of cluster mergers in this process, we quantify alignments of 38 BCGs in 22 clusters undergoing major mergers (up to ∼1 Gyr after first pericenter).
David Wittman +2 more
openaire +4 more sources
Intrinsic Shapes of Brightest Cluster Galaxies
The Astrophysical Journal, 2022 Abstract We discuss the statistical distribution of galaxy shapes and viewing angles under the assumption of triaxiality by deprojecting observed surface brightness profiles of 56 brightest cluster galaxies (BCGs) coming from a recently published large deep-photometry sample.
Stefano de Nicola +7 more
openaire +2 more sources
Molecular gas in distant brightest cluster galaxies [PDF]
Astronomy & 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