J/ApJS/194/6ivo://CDS.VizieR/J/ApJS/194/6doi:10.26093/cds/vizier.21940006CDSPovich M.S.Townsley L.K.Broos P.S.Gagne M.Babler B.L.,Indebetouw R.Majewski S.R.Meade M.R.Getman K.V.Robitaille T.P.,Townsend R.H.D.2017-10-18T08:24:06Z2011-06-08T15:25:11ZCDS support team

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

cds-question@unistra.frob-starsextinctioninfrared-photometryWe report the results of a new survey of massive, OB stars throughout the Carina Nebula using the X-ray point source catalog provided by the Chandra Carina Complex Project (CCCP) in conjunction with infrared (IR) photometry from the Two Micron All-Sky Survey and the Spitzer Space Telescope Vela-Carina survey. Mid-IR photometry is relatively unaffected by extinction, hence it provides strong constraints on the luminosities of OB stars, assuming that their association with the Carina Nebula, and hence their distance, is confirmed. We fit model stellar atmospheres to the optical (UBV) and IR spectral energy distributions (SEDs) of 182 OB stars with known spectral types and measure the bolometric luminosity and extinction for each star. Using X-ray emission as a strong indicator of association with Carina, we identify 94 candidate OB stars with L_bol_>~10^4^L_{sun}_ by fitting their IR SEDs. If the candidate OB stars are eventually confirmed by follow-up spectroscopic observations, the number of cataloged OB stars in the Carina Nebula will increase by ~50%.2011ApJS..194....6Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/194/6CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)III/182 : HDE Charts: positions, proper motions (Nesterov+ 1995)J/ApJS/194/2 : Chandra Carina Complex Project (CCCP) catalog (Broos+, 2011)J/ApJS/194/5 : Carina OB stars in the CCCP catalog (Gagne+, 2011)J/ApJS/194/14 : Pan-Carina young stellar object catalog (Povich+, 2011)J/A+A/477/593 : X-ray properties of Carina OB1 association (Antokhin+, 2008)J/ApJ/667/963 : Near-infrared photometry of Carina nebula (Sanchawala+, 2007)J/ApJ/589/509 : Chandra observations of Trumpler 14 and 16 (Evans+, 2003)J/AJ/105/1822 : Open clusters near eta Car (Cudworth+ 1993)J/AJ/105/980 : Stellar content of Tr 14 and Tr 16 (Massey+ 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/194/6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/194/6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/194/6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/194/6https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/194/6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/194/6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/194/6/table1 (Validation sample of cataloged Carina OB stars: SED-fitting results and IR photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/194/6/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/194/6/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/194/6/table1?GETtext/xml+votable180.050000true160.0517792-59.80280890.005555555555555556Cone search capability for table J/ApJS/194/6/table3 (Candidate X-ray-emitting OB stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/194/6/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/194/6/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/194/6/table3?GETtext/xml+votable180.050000true159.7914167-59.78736110.0055555555555555566/37333 37335 37930 38016 38017 380182.0616683193919197e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/194/6?format=asciiInfrareddefaultJ/ApJS/194/6/table1Validation sample of cataloged Carina OB stars: SED-fitting results and IR photometryTeffEffective temperature (1)kKphys.temperature.effectivefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name from Gagne, 2011, Cat. J/ApJS/194/5meta.id;meta.maincharAvBV? BV Extinction from Gagne 2011, Cat. J/ApJS/194/5magphys.absorptionfloatnullablelogLbolBolometric luminositylog(solLum)phys.luminosityfloatAvExtinction from SED fittingmagphys.absorptionfloatSSTGLMASSTGLMA name (GLLL.llll+BB.bbbb) (G1)meta.idcharJmag? 2MASS J-band magnitudemagphot.mag;em.IR.JfloatnullableHmag? 2MASS H-band magnitudemagphot.mag;em.IR.HfloatnullableKsmag? 2MASS Ks-band magnitudemagphot.mag;em.IR.Kfloatnullable[3.6]? Spitzer/IRAC 3.6um band magnitudemagphot.mag;em.IR.3-4umfloatnullable[4.5]? Spitzer/IRAC 4.5um band magnitudemagphot.mag;em.IR.4-8umfloatnullable[5.8]? Spitzer/IRAC 5.8um band magnitudemagphot.flux.density;em.IR.4-8umfloatnullable[8.0]? Spitzer/IRAC 8.0um band magnitudemagphot.flux.density;em.IR.8-15umfloatnullableIRExIR excess emission? (2)meta.codecharSimbadNameSimbad column added by the CDSmeta.idchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainJ/ApJS/194/6/table3Candidate X-ray-emitting OB starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqOB candidate numbermeta.id;meta.mainintf_Seq[f] X-ray flare for candidate 41 (1)meta.codecharCXOGNCCXOGNC designation (HHMMSS.ss+DDMMSS.s; J2000)(2)meta.id;meta.maincharTeffEffective temperature (3)kKphys.temperature.effectivefloatlogLbolBolometric luminosity (3)log(solLum)phys.luminosityfloatAvExtinction (3)magphys.absorptionfloatSSTGLMASSTGLMA name (GLLL.llll+BB.bbbb) (G1)meta.idcharJmag? 2MASS J-band magnitudemagphot.mag;em.IR.JfloatnullableHmag? 2MASS H-band magnitudemagphot.mag;em.IR.HfloatnullableKsmag2MASS Ks-band magnitudemagphot.mag;em.IR.Kfloat[3.6]? Spitzer/IRAC 3.6um band magnitudemagphot.mag;em.IR.3-4umfloatnullable[4.5]? Spitzer/IRAC 4.5um band magnitudemagphot.mag;em.IR.4-8umfloatnullable[5.8]? Spitzer/IRAC 5.8um band magnitudemagphot.flux.density;em.IR.4-8umfloatnullable[8.0]? Spitzer/IRAC 8.0um band magnitudemagphot.flux.density;em.IR.8-15umfloatnullableNotePrevious identification(s); spectral types or IR excess (4)meta.notecharSimbadNameSimbad column added by the CDSmeta.idchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar_RAPositions from CXOGNC name (right ascension part)degpos.eq.ra;meta.main_DEPositions from CXOGNC name (declination part)degpos.eq.dec;meta.main