A catalog of Nearby Poor Clusters of Galaxies [PDF]
A catalog of 732 optically selected, nearby poor clusters of galaxies covering the entire sky north of $\rm -3^{\circ}$ declination is presented. The poor clusters, called WBL clusters, were identified as concentrations of 3 or more galaxies with ...
Bahcall J. N. +9 more
core +2 more sources
Imaging the Thermal and Kinematic Sunyaev-Zel'dovich Effect Signals in a Sample of Ten Massive Galaxy Clusters: Constraints on Internal Velocity Structures and Bulk Velocities [PDF]
We have imaged the Sunyaev-Zel'dovich (SZ) effect signals at 140 and 270 GHz towards ten galaxy clusters with Bolocam and AzTEC/ASTE. We also used Planck data to constrain the signal at large angular scales, Herschel-SPIRE images to subtract the ...
Cibirka, Nathália +12 more
core +2 more sources
Weak lensing by triaxial galaxy clusters [PDF]
Weak gravitational lensing studies of galaxy clusters often assume a spherical cluster model to simplify the analysis, but some recent studies have suggested this simplifying assumption may result in large biases in estimated cluster masses and ...
Bartelmann +36 more
core +1 more source
Galaxy Orbits for Galaxy Clusters in Sloan Digital Sky Survey and 2dF Galaxy Redshift Survey [PDF]
We present the results of a study for galaxy orbits in galaxy clusters using a spectroscopic sample of galaxies in Sloan Digital Sky Survey (SDSS) and 2dF Galaxy Redshift Survey (2dFGRS).
Adami C. +20 more
core +1 more source
The tau of galaxy clusters [PDF]
9 pages, 5 figures, Accepted to JCAP, typos ...
openaire +2 more sources
The shapes of galaxy clusters [PDF]
17 pages, postscript, submitted to ...
Theije, P.A.M. de +2 more
openaire +3 more sources
Quenched Galaxies in Clusters of Galaxies and Their Outskirts [PDF]
Based on the SDSS data, the properties of galaxies with quenched star formation (QGs) within the "splashback"-radius of galaxy clusters $R_{\rm sp}$ and beyond it have been studied.
Kopylova, Flera G. +1 more
openaire +2 more sources
Accretion of galaxy groups into galaxy clusters [PDF]
ABSTRACT We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼ 1014 $\rm M_\odot$ from the cosmological hydrodynamical simulation Illustris and follow their galaxies with stellar mass M⋆ ≥ 1.5 × 108 $\rm M_\odot$.
José A Benavides +2 more
openaire +3 more sources
Galaxy harassment and the evolution of clusters of galaxies [PDF]
Disturbed spiral galaxies with high rates of star formation pervaded clusters of galaxies just a few billion years ago, but nearby clusters exclude spirals in favor of ellipticals. ``Galaxy harassment" (frequent high speed galaxy encounters) drives the morphological transformation of galaxies in clusters, provides fuel for quasars in subluminous hosts ...
Moore, Ben +4 more
openaire +2 more sources
Unravelling the origin of large-scale magnetic fields in galaxy clusters and beyond through Faraday Rotation Measures with the SKA [PDF]
We investigate the possibility for the SKA to detect and study the magnetic fields in galaxy clusters and in the less dense environments surrounding them using Faraday Rotation Measures.
Akahori, T. +16 more
core +2 more sources

