J/ApJ/648/580ivo://CDS.VizieR/J/ApJ/648/580doi:10.26093/cds/vizier.16480580CDSHuang W.Gies D.R.2017-09-29T09:03:47Z2009-07-11T20:14:00ZCDS support team

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

cds-question@unistra.fropen-star-clustersradial-velocityOpen clusters offer us the means to study stellar properties in samples with well-defined ages and initial chemical composition. Here we present a survey of projected rotational velocities for a large sample of mainly B-type stars in young clusters to study the time evolution of the rotational properties of massive stars. The survey is based on moderate-resolution spectra made with the WIYN 3.5m and CTIO 4m telescopes and Hydra multi-object spectrographs, and the target stars are members of 19 young open clusters with an age range of approximately 673Myr. We made fits of the observed lines HeI {lambda}{lambda}4026, 4387, 4471, and MgII {lambda}4481, using model theoretical profiles to find projected rotational velocities for a total of 496 OB stars.2006ApJ...648..580Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/648/580CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/648/591 : Stellar rotation in young clusters. II. (Huang+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/648/580https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/648/580http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/648/580https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/648/580https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/648/580http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/648/580GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/648/580/table3 (Projected Rotational Velocities of B Stars in 19 Open Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/648/580/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/648/580/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/648/580/table3?GETtext/xml+votable180.050000true305.0438.65888890.0055555555555555566/2940 3256 3257 3258 3307 3310 3384 3649 14646 14647 15662 15663 15748 15749 21528 21529 21531 22243 22246 22249 22252 37864 37865 37867 37891 37894 37897 37900 38016 38018 38024 39804 39907 39910 39931 39934 42191 42212 42213 43027 43030 43033 43036https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/648/580?format=asciiOpticaldefaultJ/ApJ/648/580/table2ZAMS model star parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIndexIndexmeta.idintPSpTypePseudospectral SubType spectral typesrc.spTypecharTeffEffective temperaturekKphys.temperature.effectivefloatMMasssolMassphys.massfloatRRadiussolRadphys.size.radiusfloatJ/ApJ/648/580/table3Projected Rotational Velocities of B Stars in 19 Open ClustersNotesAdditional notesmeta.notecharClusterCluster namemeta.id.parentcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWEBDAWebda ID (http://obswww.unige.ch/web) (1)meta.id;meta.mainintASimbad column added by the CDSmeta.ref.urlcharvsiniDerived projected rotational velocitykm/sphys.veloc.rotatinte_vsiniMeasurement error in vsinikm/sstat.error;phys.veloc.rotatintRV1Radial velocity from first night, HJD specified in obs.dat filekm/sspect.dopplerVelocfloatRV2? Radial velocity from second night if available, HJD specified in obs.dat filekm/sspect.dopplerVelocfloatnullableRV3? Radial velocity from third night if available, HJD specified in obs.dat filekm/sspect.dopplerVelocfloatnullableIndexIndex of estimated pseudo-spectral type, detailed in table2.datmeta.idfloatSimbadNameSimbad column added by the CDSmeta.idchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullableJ/ApJ/648/580/clustersSummary data for the 19 open clustersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id;meta.maincharprimarylogAgeAgelog(yr)time.agefloatNNumber of starsmeta.numberint<vsini>Mean rotational velocity from all starskm/sphys.veloc.rotatintNB3Number of stars with SpType<=B3meta.numberint<vsini>B3Mean rotational velocity from stars with SpType<=B3km/sphys.veloc.rotatintN300Number of stars with vsini>300km/smeta.numberintN300pNumber of stars with vsini>300km/s in percentage%meta.numberintNbin? Number of binariesmeta.numberintnullableNbinp? Number of binaries in percentage%meta.numberintnullableSimbadSimbad column added by the CDScharHJD1Heliocentric Julian date of night 1dtime.epochdoubleHJD2? Heliocentric Julian date of night 2dtime.epochdoublenullableHJD3? Heliocentric Julian date of night 3dtime.epochdoublenullableBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharAcronymAcronym used in Simbad name for stars in this cluster with number <10000meta.id;meta.datasetchar