J/A+A/591/A140ivo://CDS.VizieR/J/A+A/591/A140doi:10.26093/cds/vizier.35910140CDSGkouvelis L.Fabregat J.Zorec J.Steeghs D.Drew J.E.Raddi R.,Wright N.J.Drake J.J.2018-07-02T10:53:09Z2016-07-08T15:41:45ZCDS support team

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

cds-question@unistra.frearly-type-starsbe-starsstellar-distanceWe present a semi-automatic procedure to obtain fundamental physical parameters and distances of classical Be (CBe) stars, based on the Barbier-Chalonge-Divan (BCD) spectrophotometric system. Our aim is to apply this procedure to a large sample of CBe stars detected by the IPHAS photometric survey, to determine their fundamental physical parameters and to explore their suitability as galactic structure tracers. In this paper we describe the methodology used and the validation of the procedure by comparing our results with those obtained from different independent astrophysical techniques for subsamples of stars in common with other studies. We also present a test case study of the galactic structure in the direction of the Perseus Galactic Arm, in order to compare our results with others recently obtained with different techniques and the same sample of stars. We did not find any significant clustering of stars at the expected positions of the Perseus and Outer Galactic Arms, in agreement with previous studies in the same area that we used for verification.2016A&A...591A.140Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/591/A140CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/446/274 : A deep catalogue of classical Be stars (Raddi+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/591/A140https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/591/A140http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/591/A140https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/591/A140https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/591/A140http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/591/A140GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/591/A140/table56 (Physical Parameters of CBe stars (tables 5 and 6))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/591/A140/table56?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/591/A140/table56?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/591/A140/table56?GETtext/xml+votable180.050000true6.273962.53660.0055555555555555565/735 757 764 828 830 902-903 905 909 920 6/2935 2939 3034 3036-3037 3039 3045 3060 3177 3228 3258 3260 3270 3273 3275-3277 3288 3290 3294 3297-3302 3304-3305 3307-3310 3316 3318 3590-3591 3595 3599 3601-3603 3605-3607 3617 3619 3624-3626 3631-3633 3635 3640 3642-3645 3648 3651 3653-3656 3658-3662 3664 3688-3689 3712-3713 3716 3718 3721 3723-3726 3728 3732 3746https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/591/A140?format=asciidefaultJ/A+A/591/A140/table56Physical Parameters of CBe stars (tables 5 and 6)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDID number for each star on this workmeta.idintIPHASIPHAS name of each star (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharGLONGalactic longitude (J2000.0)degpos.galactic.lonGLATGalactic latitude (J2000.0)degpos.galactic.latrmagPhotometric magnitude in the r filtermagphot.mag;em.opt.RfloatEWHaEquivalent width of the H{alpha} line0.1nmspect.line.eqWidth;em.line.HalphafloatDBalmer Jump depth (BCD parameter D)phys.absorption.opticalDepthfloatLambda1Balmer jump average position (BCD parameter Lambda1)0.1nmphot.flux;arith.ratiofloatTeffEffective temperatureKphys.temperature.effectiveintSpTypeBCD spectral classificationsrc.spTypecharPhibPaschen continuum energy gradientmagarith.grad;phot.mag;spect.continuumfloatPhib0Intrinsic Paschen continuum energy gradientmagarith.grad;phot.mag;spect.continuumfloatVMAGAbsolute magnitude in V bandmagphys.magAbs;em.opt.VfloatE(B-V)Colour excessmagphot.color.excessfloatAVInterstellar reddening in the V bandmagphot.mag;em.opt.VfloatArInterstellar reddening in the r bandmagphys.absorptionfloatfDCircumstellar emission indicatorphys.emissMeasurefloatEcs(B-V)Circumstellar excessmagphot.color.excessfloatDeltarCircumstellar correction in the r bandmagphot.mag;arith.difffloatdDistance of each CBe starkpcpos.distance;pos.heliocentricfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexed