J/MNRAS/493/1512ivo://CDS.VizieR/J/MNRAS/493/1512doi:10.26093/cds/vizier.74931512CDSRate G.Crowther P.A.2025-05-22T20:15:39Z2023-07-05T13:42:54ZCDS support team

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

cds-question@unistra.frwolf-rayet-starsmultiple-starsstellar-distancestellar-spectral-typesvisible-astronomytrigonometric-parallaxextinctionmilky-way-galaxyinfrared-astronomyWe obtain distances to 383 Galactic Wolf-Rayet (WR) stars from Gaia DR2 parallaxes and Bayesian methods, with a prior based on HII regions and dust extinction. Distances agree with those from Bailer-Jones et al. for stars up to 2kpc from the Sun, though deviate thereafter due to differing priors, leading to modest reductions in luminosities for recent WR spectroscopic results. We calculate visual and K-band absolute magnitudes, accounting for dust extinction contributions and binarity, and identify 187 stars with reliable absolute magnitudes. For WR and O stars within 2kpc, we find a WR/O ratio of 0.09. The distances are used to generate absolute magnitude calibrations and obtain the Gaia colour-magnitude diagram for WR stars. Average vWR-band absolute magnitudes for WN stars range from -3.6 mag (WN3-4) to -7.0mag (WN8-9ha), and -3.1(WO2-4) to -4.6mag (WC9), with standard deviations of ~0.6mag. Using HII region scale heights, we identify 31 WR stars at large (3{sigma}, |z|>=156pc) distances from the mid-plane as potential runaways accounting for the Galactic warp, of which only four involve WN8-9 stars, contrary to previous claims.2020MNRAS.493.1512Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/493/1512CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/493/1512https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/493/1512http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/493/1512https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/493/1512https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/493/1512http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/493/1512GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/493/1512/table1 (GaiaDR2 astrometric, photometric, and parallax properties for 383 Galactic WR stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/1512/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/1512/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/1512/table1?GETtext/xml+votable180.050000true10.868291764.75983330.0055555555555555565/9480 9482 6/3231 3272 3616 3723 12942 12970 14072 14254-14255 14259 14264 14302 14309 14315 14324 14367 14411 14430 14439 14453 14619 14622 14629-14631 14640-14641 14646 14649 14655 14666 14670 14692-14693 14697 14701 14788 15387 15506 15622 20764 21550 28697 28726 28735 28803 28806 28808-28809 28818 28824 28859 28898 28903 28912-28913 28915-28916 28918-28919 29090-29091 29095-29097 29101 29114 29118 29162 29504-29505 29508 29510 29513 29517 29522-29524 29528-29529 29532 29534 30218-30219 30222 30231 30240-30241 30244-30245 30256 30258-30259 30263-30264 30269 30310 30313 30318 30600 30605 30618-30619 30666 30690-30692 30694 30706 30713 30715-30716 30719 32070 32085 37232 37246-37247 37333 37342-37343 37349 37364-37365 37370 37840 37863 37870 37882 37893 37895 37901 37904 37906-37907 37924 37926 37932 37936 37946 38016-38017 38019 38022 38026 39216 39709 39755 39774 41419 41570 41577 41586 41628 41630 41653-41658 41666-41667 41675 41677 41683-41685 41688 41697-41698 41701 41745 41756 41758-41759 41764 41768 41773 41777 41780 41790 41794 41800 41802 41805 41811 42155 42159 42163 42167-42168 42170 42206-42207 42209 42213-42214 42216-42217 42223 42226-42229 42236 42286 42295-42296 42371 42374 42377 42379 42382 42394 42405 42434-42436 42438 42440 42444 42455 42462 42481 42496 42500-42502 42562 43013-43015 43017-43019 43024-43025 43040 43042 430757.952274030004205e-20 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/493/1512?format=asciiOpticalInfrareddefaultJ/MNRAS/493/1512/table1GaiaDR2 astrometric, photometric, and parallax properties for 383 Galactic WR starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMoreLink to tables 6,7,8 and 9meta.ref.urlcharWRWR star name (WRNNN, WRNNNa, WRNNNaa or WRNNN-NN)meta.id;meta.maincharprimaryf_WR[*] Flag on WR (1)meta.codecharSpTypeSpectral typesrc.spTypecharNameAlternative namemeta.idcharRA_ICRSRight ascension (ICRS) at Ep=2015.5pos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5pos.eq.dec;meta.mainplxZero-point corrected Gaia DR2 parallaxmaspos.parallax.trigfloate_plxError on plxmasstat.error;pos.parallaxfloatDistDistance from the sunkpcpos.distancefloatE_DistUpper error on Distkpcstat.error;stat.maxfloate_DistLower error on Distkpcstat.errorfloatzDistance from the mid-planepcpos.cartesian.z;pos.galacticintE_zUpper error on zpcstat.error;stat.maxinte_zLower error on zpcstat.error;src.redshiftintGmagGaia DR2 G-band magnitudemagphot.mag;em.optfloatBP-RP? Gaia DR2 BP-RP colour indexmagphot.color;em.opt.B;em.opt.RfloatnullableExcess? Astrometric excess noisestat.fit.paramfloatnullablelogL? Logarithm of the stellar luminosity (2)log(solLum)phys.luminosity;em.optfloatnullableflag[aeng ] Error flag (3)meta.code.errorcharSimbadNameSimbad column added by the CDSmeta.idcharnullableJ/MNRAS/493/1512/table2Intrinsic colours of WR stars from PoWR models and Rosslowe & Crowther (2015MNRAS.447.2322R)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSubtypeWolf-Rayet subtypemeta.id;meta.maincharlogT/k? Logarithm of T/kstat.fit.paramfloatnullablelogRt? Logarithm of R_t_stat.fit.paramfloatnullableb-vb-v colour index from PoWR gridsmagphot.color;em.opt.B;em.opt.Vfloate_b-vError on b-vmagstat.error;phot.color;em.opt.BfloatJ-KsJ-Ks colour index from PoWR gridsmagphot.color;em.IR.J;em.IR.Kfloate_J-KsError on J-Ksmagstat.error;phot.color;em.IR.JfloatH-KsH-Ks colour index from PoWR gridsmagphot.color;em.IR.H;em.IR.Kfloate_H-KsError on H-Ksmagstat.error;phot.color;em.IR.HfloatJ-K? Intrinsic J-K colour index taken from Rosslowe & Crowther (2015MNRAS.447.2322R)magphot.color;em.IR.J;em.IR.KfloatnullableH-K? Intrinsic H-K colour index taken from Rosslowe & Crowther (2015MNRAS.447.2322R)magphot.color;em.IR.H;em.IR.KfloatnullableModelPoWR model (1)meta.id;stat.fitcharJ/MNRAS/493/1512/table3The relative continuum flux contribution of WR stars to O-type companions at near-IR wavelengths for various subtypesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSubtypeWolf-Rayet subtypemeta.id;meta.maincharVWR/VORelative V-band continuum flux contribution of the WR star to O-type companion (1)phot.flux;arith.ratiointJWR/JORelative J-band continuum flux contribution of the WR star to O-type companion (1)phot.flux;arith.ratiofloatHWR/HORelative H-band continuum flux contribution of the WR star to O-type companion (1)phot.flux;arith.ratiofloatKWR/KORelative K-band continuum flux contribution of the WR star to O-type companion (1)phot.flux;arith.ratiofloatJ/MNRAS/493/1512/table4Conversion equations between narrowband v and Gaia G-band filters for (G_BP_-G_RP_)_0_ of different spectral types, using results from Carrasco & Jordi (valid for A_v_<12)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSubtypeWolf-Rayet subtypemeta.id;meta.maincharBP-RPGaia DR2 BP-RP colour indexphot.color;em.opt.B;em.opt.RfloatConvConversion equation between A_v_ and A_G_arith.factorcharJ/MNRAS/493/1512/table5Average absolute magnitudes for Galactic WR subtypes in v and K_s_ band filtersNv? Number of stars considered to obtain vMAGmeta.numberintnullableKsMAGAverage absolute Ks-band magnitudemagphys.magAbsfloate_KsMAGError on KsMAGmagstat.errorfloatNKsNumber of stars considered to obtain KsMAGmeta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSubtypeWolf-Rayet subtypemeta.id;meta.maincharvMAG? Average absolute Smith v-band magnitude (1)magphot.magfloatnullablee_vMAG? Error on vMAGmagstat.errorfloatnullableJ/MNRAS/493/1512/table6Absolute K_s_-band magnitudes for Galactic WR starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWRWR star name (WRNNN, WRNNNa, WRNNNaa or WRNNN-NN)meta.id;meta.maincharSpTypeSpectral typesrc.spTypecharKsmag? Ks-band apparent magnitudemagphot.mag;em.IR.KfloatnullablemuDistance modulusmagphot.mag.distModfloatJ-Ks? J-Ks colour indexmagphot.color;em.IR.J;em.IR.KfloatnullableH-Ks? H-Ks colour indexmagphot.color;em.IR.H;em.IR.KfloatnullableAKs? Ks-band extinctionmagphys.absorptionfloatnullablee_AKs? Error on AKsmagstat.errorfloatnullableKsMAGS? Absolute Ks magnitude of binary systemmagphys.magAbsfloatnullableE_KsMAGS? Upper error on KsMAGSmagstat.error;stat.maxfloatnullablee_KsMAGS? Lower error on KsMAGSmagstat.errorfloatnullableKsWR/KsS? Fraction of light contributed to the binary system by the WR componentstat.fit.paramfloatnullablee_KsWR/KsS? Error on KsWR/KsSstat.errorfloatnullableKsMAGWR? Absolute Ks-band magnitude of WR starmagphys.magAbsfloatnullableE_KsMAGWR? Upper error on KsMAGWRmagstat.error;stat.maxfloatnullablee_KsMAGWR? Lower error on KsMAGWRmagstat.errorfloatnullableflagError flag (G1)meta.code.errorcharJ/MNRAS/493/1512/table7Absolute v-band magnitudes for Galactic WR starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWRWR star name (WRNNN, WRNNNa, WRNNNaa or WRNNN-NN)meta.id;meta.maincharSpTypeSpectral typesrc.spTypecharvmag? Smith v-band apparent magnitudemagphot.mag;em.opt.VfloatnullablemuDistance modulusmagphot.mag.distModfloatb-v? b-v colour indexmagphot.color;em.opt.B;em.opt.VfloatnullableAv? Smith v-band extinctionmagphys.absorptionfloatnullablee_Av? Error on Avmagstat.errorfloatnullablevMAGS? Absolute Smith v-band magnitude of binary systemmagphys.magAbsfloatnullableE_vMAGS? Upper error on vMAGSmagstat.error;stat.maxfloatnullablee_vMAGS? Lower error on vMAGSmagstat.errorfloatnullablevWR/vS? Fraction of light contributed to the binary system by the WR componentstat.fit.paramfloatnullablee_vWR/vS? Error on vWR/vSstat.errorfloatnullablevMAGWR? Absolute Smith v-band magnitude of WR starmagphys.magAbsfloatnullableE_vMAGWR? Upper error on vMAGWRmagstat.error;stat.maxfloatnullablee_vMAGWR? Lower error on vMAGWRmagstat.errorfloatnullableflagError flag (G1)meta.code.errorcharJ/MNRAS/493/1512/table8WR stars within 2kpc of the Sun, including colour excess, K-band extinction, and A_Ks_/kpc, extinction per kpcDistDistancekpcpos.distancefloatE_DistUpper error on Distkpcstat.error;stat.maxfloate_DistLower error on Distkpcstat.errorfloatflagError flag (G1)meta.code.errorcharE(B-V)? Colour excessmagphot.color.excessfloatnullablee_E(B-V)? Error on E(B-V)magstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWRWR star name (WRNNN, WRNNNa or WRNNN-NN)meta.id;meta.maincharNameAlternative namemeta.idcharSpTypeSpectral typesrc.spTypecharAKsKs-band extinctionmagphys.absorptionfloate_AKsError on AKsmagstat.errorfloatAKs/kpcExtinction per kpcmag/kpcphys.absorptionfloatE_AKs/kpcUpper error on AKs/kpcmag/kpcstat.error;stat.maxfloate_AKs/kpcLower error on AKs/kpcmag/kpcstat.errorfloatJ/MNRAS/493/1512/table9Distance of WR stars from the mid-plane |z|, for which excesses exceed 3{sigma}, where {sigma}=52pc is the HII region scale heightrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWRWR star name (WRNNN)meta.id;meta.maincharSpTypeSpectral typesrc.spTypecharDistDistancekpcpos.distancefloatE_DistUpper error on Distkpcstat.error;stat.maxfloate_DistLower error on Distkpcstat.errorfloatzDistance from the mid-plane in pcpcpos.cartesian.z;pos.galacticintE_zUpper error on zpcstat.error;stat.maxinte_zLower error on zpcstat.error;src.redshiftintzHIIsigDistance from the mid-plane in {sigma}, where {sigma}=52pc is the HII region scale heightpos.cartesian.z;pos.galacticfloatE_zHIIsigUpper error on zHIIsigstat.error;stat.maxfloate_zHIIsigLower error on zHIIsigstat.errorfloatRunaway[Yes/No ] Indicates if the star is a known runaway according to Rosslowe & Crowther (2015MNRAS.447.2322R)meta.codechar