J/A+A/603/A91ivo://CDS.VizieR/J/A+A/603/A91doi:10.26093/cds/vizier.36030091CDSGarland R.Dufton P.L.Evans C.J.Crowther P.A.Howarth I.D.,de Koter A.de Mink S.E.Grin N.J.N.LangerLennon D.J.McEvoy C.M.,Sana H.Schneider F.R.N.Simon-Diaz S.Taylor W.D.Thompson A.,Vink J.S.2017-07-17T11:47:12Z2017-07-12T07:56:56ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsmultiple-starsb-starsA spectroscopic analysis has been undertaken for the B-type multiple systems (excluding those with supergiant primaries) in the VLT-FLAMES Tarantula Survey (VFTS). Projected rotational velocities, vsini, for the primaries have been estimated using a Fourier Transform technique and confirmed by fitting rotationally broadened profiles. A subset of 33 systems with vsini<=80km/s have been analysed using a TLUSTY grid of model atmospheres to estimate stellar parameters and surface abundances for the primaries. The effects of a potential flux contribution from an unseen secondary have also been considered. For 20 targets it was possible to reliably estimate their effective temperatures (Teff) but for the other 13 objects it was only possible to provide a constraint of 20000<=Teff<=26000K - the other parameters estimated for these targets will be consequently less reliable. The estimated stellar properties are compared with evolutionary models and are generally consistent with their membership of 30 Doradus, while the nature of the secondaries of 3 SB2 system is discussed. A comparison with a sample of single stars with vsini<=80km/s obtained from the VFTS and analysed with the same techniques implies that the atmospheric parameters and nitrogen abundances of the two samples are similar. However, the binary sample may have a lack of primaries with significant nitrogen enhancements, which would be consistent with them having low rotational velocities and having effectively evolved as single stars without significant rotational mixing. This result, which may be actually a consequence of the limitations of the pathfinder investigation presented in this paper, should be considered as a motivation for spectroscopic abundance analysis of large samples of binary stars, with high quality observational data.2017A&A...603A..91Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/603/A91CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/530/A108 : VLT-FLAMES Tarantula Survey (Evans+, 2011)J/A+A/550/A107 : RV catalogue of O stars in 30 Doradus (Sana+, 2013)J/A+A/550/A108 : DIB in VLT-FLAMES Tarantula Survey (van Loon+, 2013)J/A+A/550/A109 : VLT-FLAMES Tarantula Survey: vsini measures (Dufton+ 2013)J/A+A/558/A134 : VLTS. 30 Dor luminous stars (Doran+, 2013)J/A+A/560/A29 : O-stars in VLT-FLAMES Tarantula Survey (Ramirez-Agudelo+ 2013)J/A+A/564/A39 : VLTS. OVz stars in 30 Dor (Sabin-Sanjulian+, 2014)J/A+A/564/A40 : VLTS. O-type stellar content of 30 Dor (Walborn+, 2014)J/A+A/564/L7 : VLT-FLAMES Tarantula Survey: VFTS 822 (Kalari+, 2014)J/A+A/574/A13 : VLTS. B-type stars classification and RV (Evans+, 2015)J/A+A/575/A70 : VLT-FLAMES Tarantula Survey: B supergiants (McEvoy+, 2015)J/A+A/580/A93 : VLTS. B stars multiplicity (Dunstall+, 2015)J/A+A/600/A81 : VLTS. 30Dor O giants and supergiants (Ramirez-Agudelo+, 2017)J/A+A/600/A82 : VLTS. O giants & supergiants nitrogen abundances (Grin+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/603/A91https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/603/A91http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/603/A91https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/603/A91https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/603/A91http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/603/A91GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/603/A91/table6 (Narrow lined stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/603/A91/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/603/A91/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/603/A91/table6?GETtext/xml+votable180.050000true84.2678119-69.13481110.005555555555555556Cone search capability for table J/A+A/603/A91/table7 (Broad line stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/603/A91/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/603/A91/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/603/A91/table7?GETtext/xml+votable180.050000true84.2856419-69.08634190.0055555555555555566/33094-33095https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/603/A91?format=asciiOpticaldefaultJ/A+A/603/A91/table6Narrow lined starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVFTSVFTS star numbermeta.id;meta.mainintPF4120? vsini for HeI 4120{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4120? vsini for HeI 4120{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4120? Central depth for HeI 4120{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4169? vsini for HeI 4169{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4169? vsini for HeI 4169{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4169? Central depth for HeI 4169{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4267? vsini for CII 4267{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4267? vsini for CII 4267{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4267? Central depth for CII 4267{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4437? vsini for HeI 4437{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4437? vsini for HeI 4437{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4437? Central depth for HeI 4437{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4481? vsini for MgII 4481{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4481? vsini for MgII 4481{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4481? Central depth for MgII 4481{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4552? vsini for SiIII 4552{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4552? vsini for SiIII 4552{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4552? Central depth for SiIII 4552{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4567? vsini for SiIII 4567{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4567? vsini for SiIII 4567{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4567? Central depth for SiIII 4567{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4574? vsini for SiIII 4574{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4574? vsini for SiIII 4574{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4574? Central depth for SiIII 4574{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4661? vsini for OII 4661{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4661? vsini for OII 4661{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4661? Central depth for OII 4661{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4713? vsini for HeI 4713{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4713? vsini for HeI 4713{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4713? Central depth for HeI 4713{AA} from PF methodology%phot.flux.density;arith.ratiointnullableFTM? Weighted mean of the FT estimates (1)km/sphys.veloc.rotatintnullableFTSD? Standard deviation of the FT estimates (2)km/sstat.errorintnullablePFM? Unweighted mean of the PF estimateskm/sphys.veloc.rotatintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/603/A91/table7Broad line starsVFTSVFTS star numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStatus[1]? indicates status uncertain if 1meta.codeintnullablePF4009? vsini for HeI 4009{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4009? vsini for HeI 4009{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4009? Central depth for HeI 4009{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4026? vsini for HeI 4026{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4026? vsini for HeI 4026{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4026? Central depth for HeI 4026{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4120? vsini for HeI 4120{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4120? vsini for HeI 4120{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4120? Central depth for HeI 4120{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4143? vsini for HeI 4143{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4143? vsini for HeI 4143{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4143? Central depth for HeI 4143{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4387? vsini for HeI 4387{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4387? vsini for HeI 4387{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4387? Central depth for HeI 4387{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4471? vsini for HeI 4471{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4471? vsini for HeI 4471{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4471? Central depth for HeI 4471{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4713? vsini for HeI 4713{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4713? vsini for HeI 4713{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4713? Central depth for HeI 4713{AA} from PF methodology%phot.flux.density;arith.ratiointnullablePF4921? vsini for HeI 4921{AA} from PF methodologykm/sphys.veloc.rotatintnullableFT4921? vsini for HeI 4921{AA} from FT methodologykm/sphys.veloc.rotatintnullableCD4921? Central depth for HeI 4921{AA} from PF methodology%phot.flux.density;arith.ratiointnullableFTM? Weighted mean of the FT estimateskm/sphys.veloc.rotatintnullableFTSD? Standard deviation of the FT estimates (2)km/sstat.errorintnullablePFM? Unweighted mean of the PF estimateskm/sphys.veloc.rotatintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main