J/MNRAS/458/3083ivo://CDS.VizieR/J/MNRAS/458/3083doi:10.26093/cds/vizier.74583083CDSShakouri S.Johnston-Hollitt M.Dehghan S.2024-08-16T20:16:11Z2017-05-30T15:46:56ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxy-clustersgalaxiescatalogsredshiftedIn this paper we present new AAOmega spectroscopy of 254 galaxies within a 30 arcmin radius around Abell 3888. We combine these data with the existing redshifts measured in a one degree radius around the cluster and performed a substructure analysis. We confirm 71 member galaxies within the core of A3888 and determine a new average redshift and velocity dispersion for the cluster of 0.1535+/-0.0009 and 1181+/-197km/s, respectively. The cluster is elongated along an East-West axis and we find the core is bimodal along this axis with two subgroups of 26 and 41 members detected. Our results suggest that A3888 is a merging system putting to rest the previous conjecture about the morphological status of the cluster derived from X-ray observations. In addition to the results on A3888 we also present six newly detected galaxy overdensities in the field, three of which we classify as new galaxy clusters.2016MNRAS.458.3083Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/458/3083CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/458/3083https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/458/3083http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/458/3083https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/458/3083https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/458/3083http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/458/3083GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/458/3083/table1 (Details of the objects observed with the AAOmega)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/458/3083/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/458/3083/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/458/3083/table1?GETtext/xml+votable180.050000true338.0100417-37.88068890.005555555555555556Cone search capability for table J/MNRAS/458/3083/tablea1 (Details of the galaxies of detected galaxy clusters (Structures 6-8))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/458/3083/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/458/3083/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/458/3083/tablea1?GETtext/xml+votable180.050000true338.0945833-37.74833330.0055555555555555566/46854-46855 46860-46861https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/458/3083?format=asciidefaultJ/MNRAS/458/3083/table1Details of the objects observed with the AAOmegazRedshiftsrc.redshiftdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.maine_zrms uncertainty on zstat.error;src.redshiftdoubleq_z[3/5] Redshift quality flag (1)meta.code.qual;src.redshiftintLinesSpectral lines detectedmeta.noteBmagBlue magnitude from the SuperCOSMOS cataloguemagphot.mag;em.opt.BfloatSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/458/3083/tablea1Details of the galaxies of detected galaxy clusters (Structures 6-8)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStruc[6/8] Structure numbermeta.idintNameName of the structure (SJD JHHMM.m+DDMM)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftdouble