The Galaxy Cluster Sample
Weak lensing measurements of the APEX-SZ galaxy cluster sample.
... For 39 massive galaxy clusters that were observed via the Sunyaev–Zel’dovich effect (SZE) with the APEX telescope, we analyse deep optical imaging data from WFI(@2.2mMPG/ESO) and Suprime[r] ...
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The Herschel Fornax Cluster survey, I : the bright galaxy sample
... ) galaxy in terms of its optical ...elliptical galaxy (E1) lying at the very heart of the cluster we might expect that NGC 1399’s interstellar medium is somewhat depleted compared to a galaxy ...
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Cluster-scale radio emission: analysis of a mass-selected sample of galaxy clusters
... The emissivity vs mass diagram for the clusters of the extended sample is shown in Fig. 7.12, together with the distribution of the emissivity of radio halos and upper limits. Upper limits at z > 0.3 are not taken ...
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Intra-cluster Globular Clusters in a Simulated Galaxy Cluster
... Globular cluster selection We select all dark matter subhalos accreted by the cen- tral halo that are resolved by at least 200 particles at accretion time t ac , defined as the time when its cluster- ...
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ChaMP serendipitous galaxy cluster survey
... a sample of 15 known clusters (0:3 z 0:7) contained in our ChaMP mosaic ...final cluster sample, since they are either Chandra PI targets or not found within the spatial coverage of our 36 ...
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Galaxy proto-clusters as an interface between structure, cluster, and galaxy formation
... day galaxy clusters, represent a key phase of cluster growth during which most of the galaxies were still rapidly forming ...on galaxy evolution. Albeit its pivotal role in understanding ...
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Merging Cluster Collaboration: Optical and Spectroscopic Survey of a Radio-selected Sample of 29 Merging Galaxy Clusters
... Background galaxies were detected at higher frequency with photometric redshift targeting. Detection of these objects also decreased with the redshift of the cluster. A substantial fraction of stars were detected ...
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Merging Cluster Collaboration:Optical and Spectroscopic Survey of a Radio Selected Sample of Twenty Nine Merging Galaxy Clusters
... Background galaxies detected at higher frequency with photometric redshift targeting. Detection of these ob- jects also decreased with the redshift of the cluster. A substantial fraction of stars were detected in ...
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Multiwavelength Analysis of the Merging Galaxy Cluster A115
... Since we do not have photometric redshifts for individ- ual galaxies, we evaluate β for the source population sta- tistically using a control field. This requires the assump- tion that the statistical properties of the ...
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Merging Galaxy Cluster A2255 in Mid-infrared
... 3.5. Contribution of AGNs to MIR-excess Galaxies Sample AGNs cause MIR excess in galaxies (Quillen et al. 1999 ) as well as ongoing star formation, and thus alter the derived SFRs of galaxies. The different ...
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The projected gravitational potential of the galaxy cluster MACS J1206 derived from galaxy kinematics
... We perform a bootstrap analysis, i.e. for each bootstrap sam- ple, we draw as many times with replacement from the original dataset as there are member galaxies to obtain error bars and to suppress the effect of outliers. ...
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The SAMI Galaxy Survey: The cluster redshift survey, target selection and cluster properties
... SAMI CLUSTER REDSHIFT SURVEY The target selection for the GAMA portion of the SAMI- GS sample benefits greatly from the deep, highly com- plete spectroscopy provided by the GAMA survey which was conducted on ...
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Simulation tests of galaxy cluster constraints on chameleon gravity
... For this paper, we select the PN camera of XMM–Newton telescope. The simx tool also adds a realistic background. The simulated X-ray images look cosmetically similar to real XMM data, including chip gaps and the same ...
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Early Type Galaxies And Reliable Galaxy Cluster Selection
... optical cluster finder. In this section, we introduce a tool to estimate cluster redshifts based on the red-sequence ...in galaxy spectrum and translate the position of the break into redshift, using ...
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Galaxies with monstrous black holes in galaxy cluster environments
... observed σ values are correct, this indicates that they either have a DM halo which is much more massive than typical for their M ? , or that they are out of equilibrium. I.e., they have very recently been stripped ...
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The galaxy population of the complex cluster system Abell 3921
... total cluster sample is indicated by the dashed vertical ...remaining sample of 205 galaxies reduces the number of cluster members to ...this sample into A3921-A and A3921-B we sim- ply ...
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A mature galaxy cluster at z= 1 58 around the radio galaxy 7C 1753+6311
... The UDS is a K s -selected survey, whereas we use an F140W selection for 7C 1753 + 6311. Both selections are done in the infrared, and both are much deeper than our J 23.6 mag selection so these methods are unlikely to ...
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nIFTy galaxy cluster simulations VI: the dynamical imprint of substructure on gaseous cluster outskirts
... of galaxy clusters provide a compelling testbed for current theories of galaxy formation and the growth of large-scale ...virialised cluster cen- tre, and the region where the hot, comparatively ...
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Radio halos in a mass-selected sample of galaxy clusters
... in galaxy clusters, therefore relativistic elec- trons must drive the generation and suppression of ...3.2, cluster mergers inject turbulence on large scale in the ICM and, as soon as turbulence reaches ...
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Galaxy Cluster Mass Reconstruction Project: III The impact of dynamical substructure on cluster mass estimates
... in cluster mass reconstruc- tion, to deduce whether methods under- or overestimate cluster mass differently for lower and higher mass clusters if they have sig- nificant dynamical ...each cluster ...
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