J/ApJS/194/5ivo://CDS.VizieR/J/ApJS/194/5doi:10.26093/cds/vizier.21940005CDSGagne M.Fehon G.Savoy M.R.Cohen D.H.Townsley L.K.Broos P.S.,Povich M.S.Corcoran M.F.Walborn N.R.Evans N.R.Moffat A.F.J.,Naze Y.Oskinova L.M.2017-10-09T13:34:21Z2011-06-08T14:52:24ZCDS support team

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

cds-question@unistra.frx-ray-sourcesob-starsearly-type-starsnebulaeopen-star-clustersh-ii-regionsThe Chandra Carina Complex contains 200 known O- and B-type stars. The Chandra survey detected 68 of the 70 O stars and 61 of 127 known B0-B3 stars. We have assembled a publicly available optical/X-ray database to identify OB stars that depart from the canonical L_X/L_bol relation or whose average X-ray temperatures exceed 1keV. Among the single O stars with high kT we identify two candidate magnetically confined wind shock sources: Tr16-22, O8.5 V, and LS 1865, O8.5 V((f)). The O4 III(fc) star HD 93250 exhibits strong, hard, variable X-rays, suggesting that it may be a massive binary with a period of >30d. The visual O2 If* binary HD 93129A shows soft 0.6keV and hard 1.9keV emission components, suggesting embedded wind shocks close to the O2 If* Aa primary and colliding wind shocks between Aa and Ab. Of the 11 known O-type spectroscopic binaries, the long orbital-period systems HD 93343, HD 93403, and QZ Car have higher shock temperatures than short-period systems such as HD 93205 and FO 15. Although the X-rays from most B stars may be produced in the coronae of unseen, low-mass pre-main-sequence companions, a dozen B stars with high L_X_ cannot be explained by a distribution of unseen companions. One of these, SS73 24 in the Treasure Chest cluster, is a new candidate Herbig Be star.2011ApJS..194....5Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/194/5CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-)J/ApJS/194/2 : Chandra Carina Complex Project (CCCP) catalog (Broos+, 2011)J/ApJS/194/6 : Candidate X-ray emitting OB stars (Povich et al., 2011)J/ApJS/194/7 : Global X-ray properties of O and B stars in Carina (Naze+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/194/5https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/194/5http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/194/5https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/194/5https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/194/5http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/194/5GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/194/5/ob200_1 (OB star optical and X-ray parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/194/5/ob200_1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/194/5/ob200_1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/194/5/ob200_1?GETtext/xml+votable180.050000true160.05175-59.80277780.0055555555555555566/37333 37335 37930 38016 38017 380183.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/194/5?format=asciiX-raydefaultJ/ApJS/194/5/ob200_1OB star optical and X-ray parametersONamePreferred designationmeta.idcharE(B-V)? Reddening, E(B-V)magphot.color.excessfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCXOGNCACIS Extract cat. name (HHMMSS.ss+DDMMSS.s)meta.id;meta.maincharRAXdegACIS Extract right ascension (J2000)degpos.eq.raDEXdegACIS Extract declination (J2000)degpos.eq.decdoubleSpTypeSpectral Typesrc.spTypecharr_SpType? Spectral Type Reference, in refs.dat filemeta.ref;pos.frameintnullablebin[0/1] Binarity Flagmeta.codeintVmagJohnson V magnitudemagphot.mag;em.opt.Vfloatr_Vmag? UBV Reference, in refs.dat filemeta.ref;pos.frameintnullableU-B? Johnson U-B colour indexmagphot.color;em.opt.U;em.opt.BfloatnullableB-VJohnson B-V colour indexmagphot.color;em.opt.B;em.opt.VfloatBC? Bolometric correction: Martins & Plez, 2006, Cat. J/A+A/457/637magphot.mag.bcfloatnullablelogLbolPreferred bolometric luminositylog(solLum)phys.luminosityfloatAVPreferred absorption in V bandmagphys.absorption;em.opt.VfloatlogTEffective temperature using Martins et al., 2005A&A...436.1049Mlog(K)phys.temperature.effectivefloatXD[0/1] ACIS detection flagmeta.codeintPno.t? AE (ACIS Extraction) no-source probability in 0.5-8keV band (1)stat.fit.goodnessfloatnullablePvar? KS variability, multiple ObsIdssrc.var.indexfloatnullableExpTime? Total exposure time, merged observationskstime.duration;obsfloatnullabletheta? Average off-axis angle for merged obsarcmininstr.offsetfloatnullablePSFfrac? Average PSF fraction at 1.5keV, merged observations (in skypix^2^)pixel**2instr.det.psfdoublenullablesrcCt.tCount in merged apertures 0.5-8keV (1)ctphot.count;em.X-rayintbgScal? ratio of merged bkg and src areasphot.count;em.X-rayfloatnullablebgCt.tCounts in merged bkg, 0.5-8keV (1)ctphot.count;em.X-rayintb_NetCt.t? 1-sigma lower bound (aprates) for NetCt.tctphot.count;em.X-ray;stat.minfloatnullableNetCt.t? srcCt.t - bgCt.t/bgScal (1)ctphot.count;em.X-rayfloatnullableB_NetCt.t? 1-sigma upper bound (aprates) for NetCt.tctphot.count;em.X-ray;stat.maxfloatnullableEmed.t? Median energy of events in 0.5-8keV (1)keVem.energyfloatnullableNHlog ISM Column Density: 1.6e+21*A_V_cm**-2phys.columnDensityfloatFlux.t? Flux phFlux.t*MedianEnergy.t*1.602E-9 (1)mW.m**-2phot.flux;em.X-raydoublenullablelogLx.t? XSPEC luminosity in 0.5-8keV band, assuming D=2.3kpc (1)log(1e-07W)phys.luminosity;em.X-rayfloatnullablelogLx.tc? XSPEC luminosity in 0.5-8keV band, absorption corrected (1)log(1e-07W)phys.luminosity;em.X-rayfloatnullable<kT>? kT averagekeVphys.energy;stat.meanfloatnullablerchi2? Best-fit reduced chi squaredstat.fit.chi2doublenullableb_logNH1? Lower 1-sigma bound for NH1log(cm**-2)phys.columnDensity;stat.minfloatnullablelogNH1? Hydrogen column density from XSPEClog(cm**-2)phys.columnDensityfloatnullableB_logNH1? Upper 1-sigma bound for NH1log(cm**-2)phys.columnDensity;stat.maxfloatnullableb_kT1? Lower 1-sigma bound for KT1keVphys.temperature;stat.minfloatnullablekT1? First kT value from XSPECkeVphys.temperaturefloatnullableB_kT1? Upper 1-sigma bound for KT1keVphys.temperature;stat.maxfloatnullableb_kT2? Lower 1-sigma bound for KT2keVphys.temperature;stat.minfloatnullablekT2? Second kT value from XSPECkeVphys.temperaturefloatnullableB_kT2? Upper 1-sigma bound for KT2keVphys.temperature;stat.maxfloatnullableb_FH8? 90% 2-sided upper limit for FH8mW.m**-2phot.flux;em.X-ray;stat.mindoublenullableFH8? Flux in 0.5-8.0keV bandmW.m**-2phot.flux;em.X-raydoublenullableB_FH8? 90% 2-sided lower limit for FH8mW.m**-2phot.flux;em.X-ray;stat.maxdoublenullableb_FTO? 90% 2-sided upper limit for FTOmW.m**-2phot.flux;em.X-ray;stat.mindoublenullableFTO? Flux in 0.5-10.0keV bandmW.m**-2phot.flux;em.X-raydoublenullableB_FTO? 90% 2-sided lower limit for FTOmW.m**-2phot.flux;em.X-ray;stat.maxdoublenullableFCH8? Flux in 0.5-8.0keV band, NHISM=0mW.m**-2phot.flux;em.X-ray.mediumdoublenullableFCTO? Flux in 0.5-10.0keV band, NHISM=0mW.m**-2phot.flux;em.X-ray.mediumdoublenullableSimbadNameSimbad column added by the CDSmeta.idcharRAJ2000Right ascension ICRS (ep=J2000), from Simbadpos.eq.ra;meta.mainDEJ2000Declination ICRS (ep=J2000), from Simbadpos.eq.dec;meta.mainJ/ApJS/194/5/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBiCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar