Results 11 to 20 of about 2,663,862 (204)
Individual and Group Galaxies in CNOC1 clusters [PDF]
Astrophys.J.698:83-98,2009, 2009 Using wide-field $BVR_cI$ imaging for a sample of 16 intermediate redshift ($0.17 < z < 0.55$) galaxy clusters from the Canadian Network for Observational Cosmology (CNOC1) Survey, we investigate the dependence of cluster galaxy populations and their evolution on environment.
I. H. Li, H. K. C. Yee, E. Ellingson
arxiv +7 more sources
Galaxy and Mass Assembly (GAMA): the clustering of galaxy groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 We explore the clustering of galaxy groups in the Galaxy and Mass Assembly (GAMA) survey to investigate the dependence of group bias and profile on separation scale and group mass. Due to the inherent uncertainty in estimating the group selection function, and hence the group auto-correlation function, we instead measure the projected galaxy--group ...
S D Riggs +6 more
arxiv +6 more sources
The DEEP2 Galaxy Redshift Survey: Clustering of Groups and Group Galaxies at z~1 [PDF]
Astrophys.J.638:668-685,2006, 2005 We study the clustering properties of groups and of galaxies in groups in the DEEP2 Galaxy Redshift Survey dataset at z~1. Four clustering measures are presented: 1) the group correlation function for 460 groups with estimated velocity dispersions of sigma>200 km/s, 2) the galaxy correlation for the full galaxy sample, using a flux-limited sample of ...
Alison L. Coil +9 more
arxiv +3 more sources
Diffuse Baryons in Groups and Clusters of Galaxies [PDF]
The Astrophysical Journal, 1998 To predict the X-ray observables associated to the diffuse baryons in clusters of galaxies, we develop a new physical approach to model such a hot intra-cluster plasma. Such approach is based on punctuated equilibria. and comprises the following blocks: Monte Carlo ``merging histories'' of dark matter potential wells; the central hydrostatic ...
A. Cavaliere, N. Menci, P. Tozzi
openalex +5 more sources
Dark Matter in Groups and Clusters of Galaxies [PDF]
International Astronomical Union Colloquium, 2000 AbstractWe compare the characteristics of stellar populations with those of dark halos. Dark matter around galaxies, and in groups, clusters and voids is discussed. Modern data suggest that the overall density of matter in the Universe is ΩM = 0.3 ± 0.1, about 80 % of this matter is nonbaryonic dark matter, and about 20 % is baryonic, mostly in the ...
J. Einasto, M. Einasto
openalex +4 more sources
Star Clusters in Local Group Galaxies [PDF]
2000, "Massive Stellar Clusters", ASP Conf. Ser. Vol. 211, eds. A.
Lancon & C. Boily (Provo:ASP), 262-269, 1999 In about 40% of the Local Group galaxies star clusters have been detected so far, but the census is still incomplete. The properties of these clusters are briefly reviewed, and the impact of galaxy environment on the evolution and survival of star clusters is discussed.
E. K. Grebel
arxiv +3 more sources
The colours of satellite galaxies in groups and clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 Current models of galaxy formation predict satellite galaxies in groups and clusters that are redder than observed. We investigate the effect on the colours of satellite galaxies produced by the ram pressure stripping of their hot gaseous atmospheres as the satellites orbit within their parent halo. We incorporate a model of the stripping process based
Andreea S. Font +8 more
openalex +7 more sources
The radial structure of galaxy groups and clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 16 pages, 19 figures, minor changes to match published ...
Y. Ascasíbar +3 more
openalex +6 more sources
Evidence for AGN Feedback in Galaxy Clusters and Groups [PDF]
Advances in Astronomy, 2012 The current generation of flagship X-ray missions, Chandra and XMM-Newton, has changed our understanding of the so-called “cool-core” galaxy clusters and groups.
Myriam Gitti +2 more
doaj +3 more sources
THE GALAXY CONTENT OF SDSS CLUSTERS AND GROUPS [PDF]
The Astrophysical Journal, 2009 Imaging data from the Sloan Digital Sky Survey are used to characterize the population of galaxies in groups and clusters detected with the MaxBCG algorithm. We investigate the dependence of Brightest Cluster Galaxy (BCG) luminosity, and the distributions of satellite galaxy luminosity and satellite color, on cluster properties over the redshift range ...
Sarah M. Hansen +3 more
openalex +6 more sources