Galaxy cluster
Evidence of galaxy cluster motions with the kinematic Sunyaev Zel'dovich effect
... Survey data sets.—We make use of two astronomical survey data sets. The first is a 148 GHz sky map from ACT, a dedicated microwave survey telescope in the Atacama Desert of Chile. The map covers a strip approximately 3 ...
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Discovery of the X ray selected galaxy cluster XMMU J0338 8+0021 at z=1 49
... a galaxy cluster at z = 1 ...secure cluster members, providing a median system redshift of z = 1 ...brightest cluster galaxy in a very active dynamical state, with an interacting, ...
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Confronting dark energy models using galaxy cluster number counts
... In this work, we discuss how to differentiate a large family of flat DE cosmologies (12 models) from the con- ventional ΛCDM model. Initially, a joint statistical anal- ysis, involving the latest observational data from ...
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The HST/ACS coma cluster survey IV Intergalactic globular clusters and the massive globular cluster system at the core of the coma galaxy cluster
... a galaxy cluster is ...in galaxy clusters—both in cD envelopes and in the regions between galaxies—support the existence of substantial intracluster stellar populations (Welch & Sastry 1972; Uson ...
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The representative XMM Newton cluster structure survey (REXCESS) of an X ray luminosity selected galaxy cluster sample
... luminous cluster, as noted previously from the ROSAT HRI observation by Schindler ...young galaxy cluster ...this cluster will be described in a forthcoming paper from our ...
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A search for massive ultra compact dwarf galaxies in the Centaurus galaxy cluster
... The candidates for our search for bright UCDs were selected from the VIMOS pre-imaging in the V and R filters which were taken under clear conditions. Prior to applying any selection, we matched the detections in V,R to ...
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THE ATACAMA COSMOLOGY TELESCOPE: RELATION BETWEEN GALAXY CLUSTER OPTICAL RICHNESS AND SUNYAEV ZEL'DOVICH EFFECT
... We demonstrate this effect in Figure 10, where the blue solid curve is a 5 Gaussian profile. This is roughly the filter response for a cluster profile convolved with the Planck beam as Planck’s noise is close to ...
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An S shaped arc in the galaxy cluster RX J0054 0 2823
... central galaxy system could be the merging progenitor of a future single large ...14 cluster galaxy spectra to char- acterize the presence of star formation following the method of Dressler et ...
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An AzTEC 1.1-mm survey for ULIRGs in the field of the Galaxy Cluster MS0451.6−0305
... rich cluster MS ...determining cluster membership of AzTEC-detected ...of cluster galaxies – in search of examples of strongly star-forming but obscured galaxies – as well as identifying more ...
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Clash: Precise New Constraints on the Mass Profile of the Galaxy Cluster A2261
... For accurate shape measurements of faint background galax- ies, we used the IMCAT software (Kaiser et al. 1995), follow- ing the formalism outlined in that paper. Full details of our WL analysis pipeline are provided in ...
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The X ray luminous galaxy cluster XMMU J1007 4+1237 at z=1 56 The dawn of starburst activity in cluster cores
... the cluster, we obtained deep observations with VLT/FORS 2 (Program ID: ...a galaxy template library for a semi-automated redshift determination using the IRAF package RVSAO (Kurtz & Mink 1998) and EZ ...
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The 400 square degree ROSAT PSPC galaxy cluster survey: Catalog and statistical calibration
... We present a catalog of galaxy clusters detected in a new ROSAT PSPC survey. The survey is optimized to sample, at high redshifts, the mass range corresponding to T > 5 keV clusters at z ¼ 0. Technically, our ...
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A pan chromatic view of the galaxy cluster XMMU J1230 3+1339 at z=0 975
... total cluster mass proxies of ...defined cluster center and only mild e ff ects on global ...dense cluster center and hence erase the central conditions required for the progress of significant ...
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A search for ultra compact dwarf galaxies in the Centaurus galaxy cluster
... Figure 6 shows that the compact objects are clearly more concentrated towards the central cluster galaxies than are the dEs included in our study. Selection effects regarding the dE sam- ple should not ...
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The Next Generation Virgo Cluster Survey (NGVS) XXXII A Search for Globular Cluster Substructures in the Virgo Galaxy Cluster Core
... the galaxy in such a way that both large and small velocities are associated with it in the extended “ tails ” globally located in the south of M87 ( see Figure 2 in Longobardi et ...
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A SPITZER SELECTED GALAXY CLUSTER AT z=1 62
... typically sub-J ∗ . Because the mass-to-light ratios of the stel- lar populations increase as they redden and fade over time, the dominant population of red-sequence galaxies could not form directly from the ...
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Unveiling the architecture of the Fornax galaxy cluster with its different stellar systems
... The formation and evolution of globular clusters is still lively discussed in the literature today. Due to the exciting information about them that has appeared in the last decade both, at low and high redshift, new ...
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A bright, spatially extended lensed galaxy at z = 1 7 behind the cluster RCS2 032727 132623
... when cluster members lie too close to the background galaxy and fall inside the measurement ...two cluster members fall on top of the giant ...overlapping cluster members are then used to ...
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Uncovering the Near IR Dwarf Galaxy Population of the Coma Cluster with Spitzer IRAC
... the cluster within the survey are ...the cluster, with a steep R-band slope in the north ...from galaxy- galaxy and galaxy-cluster interactions (Trentham & Mobasher 1998; ...
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Molecular gas and dust in the highly magnified z ∼2.8 galaxy behind the Bullet Cluster
... foreground galaxy or a galaxy cluster, that not only brightens a source but also provides an effective increase in angular resolution, which lowers the confusion limit ...
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