Results 11 to 20 of about 129,479 (207)

A catalog of Nearby Poor Clusters of Galaxies [PDF]

open access: yes, 1999
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]

open access: yes, 2019
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]

open access: yes, 2011
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]

open access: yes, 2007
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]

open access: yesJournal of Cosmology and Astroparticle Physics, 2016
9 pages, 5 figures, Accepted to JCAP, typos ...
openaire   +2 more sources

The shapes of galaxy clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1995
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]

open access: yesAstrophysical Bulletin, 2020
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]

open access: yesMonthly Notices of the Royal Astronomical Society, 2020
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]

open access: yesNature, 1996
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]

open access: yes, 2014
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

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