Improved Constraints on Mergers with SZ, Hydrodynamical simulations, Optical, and X-ray (ICM-SHOX) [PDF]
EPJ Web of ConferencesGalaxy cluster mergers are representative of a wide range of physics, making them an excellent probe of the properties of dark matter and the ionized plasma of the intracluster medium.
Silich E.M. +14 more
doaj +1 more source
Weighing the Giants – III. Methods and measurements of accurate galaxy cluster weak-lensing masses [PDF]
, 2012 We report weak-lensing masses for 51 of the most X-ray luminous galaxy clusters known. This cluster sample, introduced earlier in this series of papers, spans redshifts 0.15 < z_cl < 0.7, and is well suited to calibrate mass proxies for current cluster ...
D. Applegate +12 more
semanticscholar +1 more source
COMPARISON OF OPTICAL AND X-RAY MASS ESTIMATES OF THE CHANDRA GALAXY CLUSTERS AT Z < 0.1
Odessa Astronomical Publications, 2013 We used the optical data taken from SDSS DR7 galaxy and group catalog to determine the optical mass of 37 nearer Chandra galaxy clusters for comparison with the X-ray mass estimates.
Iu. V. Babyk, I. B. Vavilova
doaj +1 more source
The “toothbrush-relic”: evidence for a coherent linear 2-Mpc scale shock wave in a massive merging galaxy cluster? [PDF]
, 2012 Some merging galaxy clusters host diffuse extended radio emission, so-called radio halos and relics. Here we present observations between 147 MHz and 4.9 GHz of a new radio-selected galaxy cluster 1RXS J0603.3+4214 (z=0.225). The cluster is also detected
R. Weeren +8 more
semanticscholar +1 more source
The Globular Cluster Luminosity Function and Specific Frequency in Dwarf Elliptical Galaxies
, 2007 The globular cluster luminosity function, specific globular cluster frequency, S_N, specific globular cluster mass, T_MP, and globular cluster mass fraction in dwarf elliptical galaxies are explored using the full 69 galaxy sample of the HST WFPC2 Dwarf ...
Baumgardt H. +4 more
core +1 more source
Identification of members in the central and outer regions of galaxy clusters [PDF]
, 2013 The caustic technique measures the mass of galaxy clusters in both their virial and infall regions and, as a byproduct, yields the list of cluster galaxy members. Here we use 100 galaxy clusters with mass M200>=1E14 Msun/h extracted from a cosmological N-
Diaferio, Antonaldo, Serra, Ana Laura
core +2 more sources
Test of Cosmic Web-feeding Model for Star Formation in Galaxy Clusters in the COSMOS Field
The Astrophysical JournalIt is yet to be understood how large-scale environments influence star formation activity in galaxy clusters. One recently proposed mechanism is that galaxy clusters can remain star forming when fed by infalling groups and star-forming galaxies from ...
Eunhee Ko +3 more
doaj +1 more source
NUMERICAL MODELING OF GLOBULAR CLUSTERS TIDAL DISSOLUTION
Odessa Astronomical Publications, 2013 Numerical model of dynamical evolution of globular clusters(GCs) is described, with an emphasis of the mass loss rate in tidal interactions with the Galaxy.
M. V. Ryabova +2 more
doaj +1 more source
X-ray observations of the galaxy cluster Abell 2029 to the virial radius [PDF]
, 2012 We present Suzaku observations of the galaxy cluster Abell 2029, which exploit Suzaku’s low particle background to probe the intracluster medium at radii beyond that which is possible with previous observations, and with better azimuthal coverage.
S. Walker +4 more
semanticscholar +1 more source
Characterising galaxy clusters’ completeness function in Planck [PDF]
EPJ Web of ConferencesGalaxy cluster number counts are an important probe to constrain cosmological parameters. One of the main ingredients of the analysis is the selection function, and in particular the completeness, associated to the cluster sample one is considering ...
Gallo S. +3 more
doaj +1 more source