Results 81 to 90 of about 88,791 (299)
Where does the gas fueling star formation in brightest cluster galaxies originate [PDF]
, 2016 Aims. We investigate the relationship between X-ray cooling and star formation in brightest cluster galaxies (BCGs). Methods. We present an X-ray spectral analysis of the inner regions, 10 40 kpc, of six nearby cool core clusters (z < 0:35) observed with
S. Molendi +8 more
semanticscholar +1 more source
Investigating the M GCS–M h Relation in the Most Massive Galaxies
The Astrophysical Journal, 2023 The relation between the total mass contained in the globular clusters of a galaxy and the mass of its dark-matter halo has been found observationally to be nearly linear over five decades of mass.
Veronika Dornan, William E. Harris
doaj +1 more source
Coevolution of brightest cluster galaxies and intracluster light using CLASH [PDF]
, 2015 We examine the stellar mass assembly in galaxy cluster cores using data from the Cluster Lensing And Supernova survey with Hubble (CLASH). We measure the growth of brightest cluster galaxy (BCG) stellar mass, the fraction of the total cluster light which
Claire Burke, M. Hilton, C. Collins
semanticscholar +1 more source
Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity
Annalen der Physik, EarlyView.This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley +1 more source
The Emergence of a Brightest Cluster Galaxy in a Protocluster Core at z = 2.24
The Astrophysical JournalWe report the detection of a pair of massive quiescent galaxies likely in the process of merging at the center of the spectroscopically confirmed, extremely massive protocluster BOSS1244 at z = 2.24 ± 0.02.
Dong Dong Shi +6 more
doaj +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 ...
Giovannini, G. +2 more
openaire +3 more sources
Cross-correlation Weak Lensing of SDSS galaxy Clusters II: Cluster Density Profiles and the Mass--Richness Relation [PDF]
, 2007 We interpret and model the statistical weak lensing measurements around 130,000 groups and clusters of galaxies in the Sloan Digital Sky Survey presented by Sheldon et al. 2007 (Paper I).
Annis, James +9 more
core +3 more sources
A comprehensive study of the radio properties of brightest cluster galaxies [PDF]
, 2015 We examine the radio properties of the brightest cluster galaxies (BCGs) in a large sample of X-ray selected galaxy clusters comprising the Brightest Cluster Sample (BCS), the extended BCS and ROSAT-ESO Flux Limited X-ray cluster catalogues.
M. Hogan +13 more
semanticscholar +1 more source
Astronomische Nachrichten, EarlyView.ABSTRACT Isochrones, equal‐age curves, are widely used in astrophysics to estimate stellar ages. Classical stellar parameters are, however, very limited in their usability for main sequence stars because of their weak age‐dependence. Here, rotation period measurements provide complementary information.
David Gruner, Sydney A. Barnes
wiley +1 more source
Order statistics of the early-type galaxy luminosity function [PDF]
, 2011 We apply order statistics (OS) to the bright end ($M_r < -22$) of the luminosity distribution of early-type galaxies spectroscopically identified in the SDSS DR7 catalog.
Abazajian +50 more
core +2 more sources