J/MNRAS/468/2645ivo://CDS.VizieR/J/MNRAS/468/2645doi:10.26093/cds/vizier.74682645CDSDehghan S.Johnston-Hollitt M.Colless M.Miller R.2024-08-17T20:18:37Z2017-05-26T06:45:40ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiescatalogsspectroscopyradial-velocityWe present spectroscopy of 880 galaxies within a 2-degree field around the massive, merging cluster Abell 3266. This sample, which includes 704 new measurements, was combined with the existing redshifts measurements to generate a sample of over 1300 spectroscopic redshifts; the largest spectroscopic sample in the vicinity of A3266 to date. We define a cluster sub-sample of 790 redshifts which lie within a velocity range of 14000 to 22000km/s and within 1 degree of the cluster centre. A detailed structural analysis finds A3266 to have a complex dynamical structure containing six groups and filaments to the north of the cluster as well as a cluster core which can be decomposed into two components split along a northeast-southwest axis, consistent with previous X-ray observations. The mean redshift of the cluster core is found to be 0.0594+/-0.0005 and the core velocity dispersion is given as 1462+/-99km/s. The overall velocity dispersion and redshift of the entire cluster and related structures are 1337+/-67 km/s and 0.0596+/-0.0002, respectively, though the high velocity dispersion does not represent virialised motions but rather is due to relative motions of the cluster components. We posit A3266 is seen following a merger along the northeast southwest axis, however, the rich substructure in the rest of the cluster suggests that the dynamical history is more complex than just a simple merger with a range of continuous dynamical interactions taking place. It is thus likely that turbulence in A3266 is very high, even for a merging cluster.2017MNRAS.468.2645Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/468/2645CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/226 : 2dF Galaxy Redshift Survey 100k Data Release (2dFGRS Team 2001)J/AJ/112/36 : Velocities in Abell 3266 (Quintana+ 1996)J/A+A/495/707 : WINGS spectroscopy of 48 galaxy clusters (Cava+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/468/2645https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/468/2645http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/468/2645https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/468/2645https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/468/2645http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/468/2645GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/468/2645/table2 (Full data table for heliocentric radial velocities in a 2-degree region around Abell 3266)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/2645/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/2645/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/2645/table2?GETtext/xml+votable180.050000true65.8147917-61.76758330.0055555555555555565/8308 6/33223 33229 33236 33238 33240-33241https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/468/2645?format=asciidefaultJ/MNRAS/468/2645/table2Full data table for heliocentric radial velocities in a 2-degree region around Abell 3266recnoRecord 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.mainHRVL? Heliocentric radial velocity obtained from the literaturekm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRVL? Uncertainty in the literature measurementkm/sstat.errorintnullableHRVW? Heliocentric radial velocity obtained from WINGS cataloguekm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRVW? Uncertainty in WINGS measurementkm/sstat.errorintnullableHRVQ? Heliocentric radial velocity obtained from Quintana et al. (1996, Cat. J/AJ/112/36)km/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRVQ? Uncertainty in Quintana et al. (1996, Cat. J/AJ/112/36) measurementkm/sstat.errorintnullableHRV2? 2dF heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRV2? Uncertainty in 2dF measurementkm/sstat.errorintnullableHRVAverage heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentric;stat.meaninte_HRV? Uncertainty in the average measurementkm/sstat.errorintnullableRef[1/9] Reference (1)meta.ref;pos.frameintSimbadSimbad column added by the CDSmeta.ref.urlchar