J/A+A/550/A27ivo://CDS.VizieR/J/A+A/550/A27doi:10.26093/cds/vizier.35500027CDSMahy L.Rauw G.De Becker M.Eenens P.Flores. C.A.2017-12-07T07:26:46Z2013-01-18T09:42:35ZCDS support team

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

cds-question@unistra.frstellar-associationso-starsradial-velocityEstablishing the multiplicity of O-type stars is the first step towards accurately determining their stellar parameters. Moreover, the distribution of the orbital parameters provides observational clues to the way that O-type stars form and to the interactions during their evolution. Our objective is to constrain the multiplicity of a sample of O-type stars belonging to poorly investigated OB associations in the Cygnus complex and for the first time to provide orbital parameters for binaries identified in our sample. Such information is relevant to addressing the issue of the binarity in the context of O-type star formation scenarios.2013A&A...550A..27Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/550/A27CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/543/A101 : OB stars in Cygnus OB2 association (Comeron+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/550/A27https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/550/A27http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/550/A27https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/550/A27https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/550/A27http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/550/A27GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/550/A27/stars (List of studied stars (added by CDS))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/550/A27/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/550/A27/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/550/A27/stars?GETtext/xml+votable180.050000true301.415833335.60777780.0055555555555555565/3661 6/14630-14631 14633 14655 14689-14690 14740 14743https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/550/A27?format=asciiOpticaldefaultJ/A+A/550/A27/starsList of studied stars (added by CDS)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD star numbermeta.id;meta.mainintprimaryRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainCygCygnus OB association: OB1, OB3, OB8 or OB9meta.id.parentcharPer? Period for new binary systems (from table3)dtime.perioddoublenullableVCPlot of velocitiesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.refcharJ/A+A/550/A27/table2The radial velocities of the strongest lines measured for each star from the observed spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD star numbermeta.id;meta.mainintm_HD[PS] SB2 systems, "P" for primary and "S" for secondarymeta.code.multipcharHJDHeliocentric Julian date (HJD-2450000)dtime.epochdoubleHeI4471? Doppler shift measured on HeI{lambda}4471km/sspect.dopplerVelocfloatnullableHeII4542? Doppler shift measured on HeI{lambda}I4542km/sspect.dopplerVelocfloatnullableNIII4634? Doppler shift measured on NIII{lambda}4634km/sspect.dopplerVelocfloatnullableNIII4641? Doppler shift measured on NIII{lambda}4641km/sspect.dopplerVelocfloatnullableHeII4686? Doppler shift measured on HeII{lambda}4686km/sspect.dopplerVelocfloatnullableHeI4713? Doppler shift measured on HeI{lambda}4713km/sspect.dopplerVelocfloatnullableHeI5876? Doppler shift measured on HeI{lambda}5876km/sspect.dopplerVelocfloatnullableNaI5889? Doppler shift measured on NaI{lambda}5889km/sspect.dopplerVelocfloatnullableNaI5895? Doppler shift measured on NaI{lambda}5895km/sspect.dopplerVelocfloatnullableRV? Radial velocity computed by the disentangling programmekm/sphys.veloc;pos.heliocentricfloatnullable