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Authordc.contributor.authorCampusano Brown, Luis 
Authordc.contributor.authorMarinello, Gabriel 
Authordc.contributor.authorClowes, Roger G. 
Authordc.contributor.authorHaines, Christopher P. 
Authordc.contributor.authorPereira, Sebastián 
Authordc.contributor.authorPizarro, Daniel 
Authordc.contributor.authorHitschfeld Kahler, Nancy 
Authordc.contributor.authorSöchting, Ilona K. 
Admission datedc.date.accessioned2020-04-27T23:06:05Z
Available datedc.date.available2020-04-27T23:06:05Z
Publication datedc.date.issued2020
Cita de ítemdc.identifier.citationThe Astrophysical Journal, 890:91 (2pp), 2020 February 10es_ES
Identifierdc.identifier.other10.3847/1538-4357/ab6b26
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/174165
Abstractdc.description.abstractWe identify 1901 galaxy clusters (N-g >= 2) with the VoML+G algorithm (Paper I) on the Two-Degree Field Galaxy Redshift Survey. We present the 341 clusters with at least 10 galaxies that are within 0.009 < z < 0.14 (the Catalog), of which 254 (similar to 75%) have counterparts in the literature (NED), with the remainder (87) plausibly "new" because of incompleteness of previous searches or unusual galaxy contents. The 207 clusters within z = 0.04-0.09 are used to study the properties of the galaxy systems in the nearby universe, including their galaxy contents parameterized by the late-type galaxy fractions (f(L)). For this nearly complete cluster subsample, we find the following: (i) 63% are dominated by early-type galaxies (i.e., the late-type-poor clusters, f(L) < 0.5) with corresponding mean multiplicity and logarithmic virial mass (in units of M-circle dot) of 22 +/- 1 and 12.91 +/- 0.04, respectively; and (ii) 37% are dominated by late-type galaxies (i.e., the late-type-rich clusters, f(L) >= 0.5) with corresponding mean multiplicity and logarithmic virial mass (in units of M-circle dot) of 15.7 +/- 0.9 and 12.66 +/- 0.07, respectively. The statistical analysis of the late-type fraction distribution supports, with a 3 sigma confidence level, the presence of two population components. It is suggested that the late-type-poor galaxy systems reflect and extend the class of Abell-APM-EDCC clusters and that the late-type-rich systems (similar to one-third of the total) belong to a new, previously unappreciated class. The late-type-rich clusters, on average high mass-to-light ratio systems, appear to be more clustered on large scales than the late-type-poor clusters. A class of late-type-rich clusters is not predicted by current theory.es_ES
Patrocinadordc.description.sponsorshipComision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT PIA/ANILLOS ACT-1122 CONICYT project Basal AFB-170002 Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) CONICYT FONDECYT 1040499 7040066es_ES
Lenguagedc.language.isoenes_ES
Publisherdc.publisherIOPes_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Sourcedc.sourceAstrophysical Journales_ES
Keywordsdc.subjectCosmology: observationses_ES
Keywordsdc.subjectGalaxies: clusters: generales_ES
Keywordsdc.subjectLarge-scale structure of universees_ES
Keywordsdc.subjectMethods: data analysises_ES
Títulodc.titleA 3D Voronoi+Gapper Galaxy Cluster Finder in Redshift Space to z ∼ 0.2. II. An Abundant Cluster Population Dominated by Late-type Galaxies Unveiledes_ES
Document typedc.typeArtículo de revistaes_ES
dcterms.accessRightsdcterms.accessRightsAcceso Abierto
Catalogueruchile.catalogadorcrbes_ES
Indexationuchile.indexArtículo de publicación ISI
Indexationuchile.indexArtículo de publicación SCOPUS


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile