J/A+A/568/A119ivo://CDS.VizieR/J/A+A/568/A119doi:10.26093/cds/vizier.35680119CDSMonguio M.Figueras F.Grosbol P.2015-02-08T08:40:54Z2014-09-03T08:32:48ZCDS support team

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

cds-question@unistra.frearly-type-starsstellar-distancevisible-astronomymedium-band-photometryeffective-temperatureA uvbyH{beta} Stromgren photometric survey covering 16 square degrees in the anticenter direction was carried out using the Wide Field Camera at the Isaac Newton Telescope. Physical parameters like stellar distances and extinctions for the young stars of our survey are presented here. We developed a new method for deriving physical parameters from Stromgren photometry and also implemented and tested it. This is a model-based method that uses the most recent available stellar atmospheric models and evolutionary tracks to interpolate in a 3D grid of the unreddened indexes [m1], [c1] and H{beta}. Distances derived from both this method and the classical pre-Hipparcos calibrations were tested against Hipparcos parallaxes and found to be accurate. Furthermore, a shift in the atmospheric grids in the range Teff=[7000,9000]K was detected and a correction is proposed. The two methods were used to compute distances and reddening for around 12000 OBA-type stars in our Stromgren anticenter survey. Data from the IPHAS and 2MASS catalogs were used to complement the detection of emission line stars and to break the degeneracy between early and late photometric regions. We note that photometric distances can differ by more than 20%, those derived from the empirical calibrations being smaller than those derived with the new method, which agree better with the Hipparcos data.2014A&A...568A.119Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/568/A119CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/568/A119https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/568/A119http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/568/A119https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/568/A119https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/568/A119http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/568/A119GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/568/A119/spp (Catalog of physical parameters of young stars in the Galactic anticenter survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/568/A119/spp?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/568/A119/spp?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/568/A119/spp?GETtext/xml+votable180.050000true83.7644655630.184681110.0055555555555555565/6094 6113 6115-6116 6118 6121 6/24366-24367 24496-244973.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/568/A119?format=asciiOpticaldefaultJ/A+A/568/A119/sppCatalog of physical parameters of young stars in the Galactic anticenter surveyvMAG? MB absolute magnitude (3)magphys.magAbsfloatnullableID[1/70989] Star ID numbermeta.id;meta.mainintprimaryRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainVmagMagnitude transformed into the standard Johnson V magnitudemagphot.mag;em.opt.Vfloate_VmagError of Vmagmagstat.error;phot.mag;em.opt.Vfloat(b-y)Stromgren (b-y) color indexmagphot.color;em.opt.B;em.opt.Vfloate_(b-y)Error of (b-y)magstat.errorfloatc1Stromgren c1 indexmagphot.colorfloate_c1Error of c1magstat.errorfloatm1Stromgren m1 indexmagphot.colorfloate_m1Error of m1magstat.errorfloatHbetNew values for the Stromgren H{beta} indexmagphot.color;em.opt.B;em.line.Hbetafloate_HbetError of Hbetmagstat.errorfloatr? MB distance (3)pcpos.distance;pos.heliocentricintnullablee_r? Error of rpcstat.errorintnullable(b-y)0MB intrinsic color (b-y)0 (3)magphot.color;em.opt.B;em.opt.Vfloate_(b-y)0? Error of (b-y)0magstat.errorfloatnullablee_vMAG? Error of vMAGmagstat.errorfloatnullableAv? MB visual absorption (3)magphys.absorptionfloatnullablee_Av? Error of Avmagstat.errorfloatnullableTeffMB effective temperature (3)Kphys.temperature.effectiveinte_Teff? Error of TeffKstat.error;phys.temperature.effectiveintnullableloggMB surface gravity (3)phys.gravityfloate_logg? Error of loggstat.errorfloatnullableLum? MB luminosity (3)solLumphys.luminosityfloatnullablee_Lum? Error of lumsolLumstat.errorfloatnullablelogAgeMB log(Age) (3)log(yr)arith.zpfloate_logAge? Error of logAgelog(yr)stat.error;time.agefloatnullableMass? MB stellar mass (3)solMassphys.massfloatnullablee_Mass? Error of MasssolMassstat.error;phys.massfloatnullableBCMB bolometric correction (3)magphot.mag.bcfloate_BC? Error of BCmagstat.errorfloatnullableDSEDse: 3D fitting parameter providing the distance between the star and the ellipsoid of errors in the [m1]-[c1]-H{beta} spacemagstat.fit.paramfloatDSG3D fitting parameter providing the distance between the star and the point if the grid in the [m1]-[c1]-H{beta} spacemagstat.fit.paramfloatPmax[0/1] Parameter indicating the probability for the star to belong to the most probable point of the gridstat.fit.goodnessfloatPmaxB[0/1] Parameter indicating the probability for the star to belong to the corresponding point of the grid at the other side of the gapstat.fit.goodnessfloatNside[0/100] Percentage of simulated stars located at the corresponding side of the gap (1)%meta.numberintrEC? EC distance (3)pcpos.distance;pos.heliocentricintnullablee_rEC? Error of r_ECpcstat.errorintnullable(b-y)0EC? EC intrinsic color (b-y)0 (3)magphot.color;em.opt.B;em.opt.Vfloatnullablee_(b-y)0EC? Error of (b-y)0_ECmagstat.errorfloatnullablevMAGEC? EC absolute magnitude (3)magphys.magAbsfloatnullablee_vMAGEC? Error of Mv_ECmagstat.errorfloatnullableAvEC? EC visual absorption (3)magphys.absorptionfloatnullablee_AvEC? Error of Av ECmagstat.errorfloatnullablereg[1/5] Photometric region assigned to the star by the new classification (NC) methodsrc.class.colorintNreg1[0/100] Percentage of simulated stars located in the early region (up to B9)%meta.numberintNreg2[0/100] Percentage of simulated stars located in the intermediate region (A0-A3)%meta.numberintNreg3[0/100] Percentage of simulated stars located in the late region (up to A9)%meta.numberintNreg4[0/100] Percentage of simulated stars located in the late region (F0-G2)%meta.numberintNreg5[0/100] Percentage of simulated stars located in the late region (later than G2)%meta.numberintrB? MB(B) distance (3)pcpos.distance;pos.heliocentricintnullable(b-y)0BMB(B) (b-y)0 intrinsic color (3)magphot.color;em.opt.B;em.opt.VfloatMvB? MB(B) absolute magnitude (3)magphys.magAbsfloatnullableAvBMB(B) visual absorption (3)magphys.absorptionfloatTeffBMB(B) effective temperature (3)Kphys.temperature.effectiveintloggBMB(B) surface gravity (3)phys.gravityfloatlumB? MB(B) luminosity (3)solLumphys.luminosity;em.opt.BfloatnullablelogAgeBMB(B) log(Age) (3)log(yr)arith.zpfloatMassBMB(B) stellar mass (3)solMassphys.massfloatBCBMB(B) bolometric correction (3)magphot.mag.bcfloatem[0/2] Flag indicating emission-line stars (=1) according to IPHAS data (2)meta.codeintDJKmin? Minimum distance between the location of the star in the (J-K)0 vs. (b-y)0 plot and the main sequence relation (MB method)magstat.fit.residualfloatnullableDKHin? Minimum distance between the location of the star in the (J-H)0 vs. (b-y)0 plot and the main sequence relation (MB method)magstat.fit.residualfloatnullableFlagJK? FlagJK = DJK,B,min-DJK,min comparing both assignations with 2MASS datamagmeta.code.errorfloatnullableFlagJH? FlagJH = DJH,B,min-DJH,min comparing both assignations with 2MASS datamagmeta.code.errorfloatnullable