A <i>z</i>=0.9 supercluster of X-ray luminous, optically selected, massive galaxy clusters

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dc.contributor.authorGilbank, David G.
dc.contributor.authorYee, H. K. C.
dc.contributor.authorEllingson, E.
dc.contributor.authorHicks, A. K.
dc.contributor.authorGladders, M. D.
dc.contributor.authorBarrientos, L. F.
dc.contributor.authorKeeney, B.
dc.date.accessioned2025-01-21T01:05:07Z
dc.date.available2025-01-21T01:05:07Z
dc.date.issued2008
dc.description.abstractWe report the discovery of a compact supercluster structure at z = 0.9. The structure comprises three optically selected clusters, all of which are detected in X- rays and spectroscopically confirmed to lie at the same redshift. The Chandra X-ray temperatures imply individual masses of similar to 5 x 10(14) M-circle dot. The X-ray masses are consistent with those inferred from optical-X-ray scaling relations established at lower redshift. A strongly lensed z similar to 4 Lyman break galaxy behind one of the clusters allows a strong-lensing mass to be estimated for this cluster, which is in good agreement with the X-ray measurement. Optical spectroscopy of this cluster gives a dynamical mass in good agreement with the other independent mass estimates. The three components of the RCS 2319 + 00 supercluster are separated from their nearest neighbor by a mere < 3 Mpc in the plane of the sky and likely ! 10 Mpc along the line of sight, and we interpret this structure as the high-redshift antecedent of massive (similar to 10(15) M) clusters such as MS 0451.5 - 0305.
dc.fuente.origenWOS
dc.identifier.eissn2041-8213
dc.identifier.issn2041-8205
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95824
dc.identifier.wosidWOS:000255237700004
dc.issue.numero2
dc.language.isoen
dc.pagina.finalL92
dc.pagina.inicioL89
dc.revistaAstrophysical journal letters
dc.rightsacceso restringido
dc.subjectgalaxies : clusters : general
dc.subjectgalaxies : clusters : individual (RCS 231848+0030.1, RCS 231958+0038.0, RCS 232002+0033.4)
dc.titleA <i>z</i>=0.9 supercluster of X-ray luminous, optically selected, massive galaxy clusters
dc.typeartículo
dc.volumen677
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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