J/AJ/156/61ivo://CDS.VizieR/J/AJ/156/61doi:10.26093/cds/vizier.51560061CDSDimitrov D.P.Kjurkchieva D.P.Ivanov E.I.2020-01-17T10:40:46Z2019-02-12T06:21:27ZCDS support team

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

cds-question@unistra.fropen-star-clustersstellar-associationsinfrared-photometrybe-starsstellar-spectral-typesradial-velocityproper-motionsvisible-astronomyh-alpha-photometryline-intensitiesstellar-distanceThis paper presents the results of 4 years of high-resolution spectral observations of 69 emission-line stars, 54 of them being newly discovered sources. We classified the stars on the basis of their position in the two-color IR diagram and some additional criteria: shape and width of the H{alpha} profile, presence of He lines, proper motion and parallax, membership to open cluster and associations. Sixty of our targets turned out to be Be stars. We also found four late giants, four pre-MS stars, and one late dwarf. The H{alpha} emission profiles of our Be stars range from single peaked to typical shell profiles that can also be highly asymmetric or single-peaked profiles with a narrow absorption core. The emission profiles appear almost constant with time or highly variable in intensity and in their V/R ratio. The detected long-term variability of the H{alpha} emission is important for investigating the on/off switch phenomenon of Be stars. Our study led to an increase of the number of the emission-line stars of 16 open clusters.2018AJ....156...61Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/156/61CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/125 : Photometry and Spectroscopy for Luminous Stars (Reed 2005)I/317 : The PPMXL Catalog (Roeser+ 2010)I/322 : UCAC4 Catalogue (Zacharias+, 2012)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/ApJ/454/151 : OB Associations of the Northern Milky Way (Massey+ 1995)J/other/RMxAA/33.83 : NGC 129 positions and proper motions (Stock+ 1997)J/A+A/376/144 : BV(RI)_C_H{alpha} photometry of NGC 663 (Pigulski+, 2001)J/AJ/124/2254 : Speckle interferometry at USNO. VIII. (Mason+, 2002)J/AN/325/740 : Astrophysical supplements to ASCC-2.5 (Kharchenko+, 2004)J/ApJS/161/118 : byH{alpha} photometry in open clusters (McSwain+, 2005)J/A+A/446/785 : Catalogue of eclipsing variables (Malkov+, 2006)J/ApJ/652/458 : BVRH{alpha} photometry of candidates Be starsJ/AJ/136/2413 : Galactic midplane Spitzer red sources (Robitaille+, 2008)J/ApJ/700/1216 : Spectroscopy of Be stars in open clustersJ/A+A/515/A16 : UBVI light curves of NGC 884 variables (Saesen+, 2010)J/ApJS/187/228 : H{alpha} profiles of Be stars (Silaj+, 2010)J/MNRAS/403/1491 : Integrated magnitudes of synthetic star clustersJ/ApJ/726/19 : Intermediate-mass stars in IC 1805 (Wolff+, 2011)J/other/BASI/39.517 : Spectroscopy of classical Be stars (Mathew+, 2011)J/A+A/550/A79 : H{alpha} and H{beta} lines of northern Be starsJ/A+A/564/A79 : Proper motions of open clusters from UCAC4 (Dias+, 2014)J/MNRAS/444/290 : Star clusters distances and extinctions. II.J/A+A/591/A140 : IPHAS-selected classical Be stars (Gkouvelis+, 2016)J/MNRAS/463/1162 : Infrared photometry of Be stars (Chen+, 2016)J/AJ/153/174 : SDSS-III/APOGEE. II. The multi-epoch ABE samplehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/156/61https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/156/61http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/156/61https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/156/61https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/156/61http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/156/61GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/156/61/table1 (Available information about the targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/156/61/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/156/61/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/156/61/table1?GETtext/xml+votable180.050000true0.6115708367.574111110.0055555555555555566/2940 3009 3045 3061 3257 3298 3300 3307 3623 3628 3632 3634 3636 3664 3718 3723 3755 13980 14114 14263 14310 14322 14324 14325 14353 14415 14643 14646 14719 15443 15620 15621 15622 15632 15667 15686 245101.5062136169708525e-19 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/156/61?format=asciiOpticalInfrareddefaultJ/AJ/156/61/table1Available information about the targetsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget name (JHHMM+DDHH)meta.id;meta.maincharprimarymoreindicates data in other tables for this targetmeta.ref.urlcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainJmag[7.456/13.33]? 2MASS J band magnitudemagphot.mag;em.IR.JfloatnullableJ-H[-0.131/0.923]? 2MASS (J-H) colormagphot.color;em.IR.J;em.IR.HfloatnullableH-Ks[0.025/1.656]? 2MASS (H-K_s_) colormagphot.color;em.IR.H;em.IR.KfloatnullableSpTypeSpectral type as given in SIMBADsrc.spTypecharClusterCluster membershipmeta.id.parentcharRefReference codes (1)meta.notecharSimbadNameSimbad column added by the CDSmeta.idcharJ/AJ/156/61/table2Log of observations and parameters of the H{alpha} emissionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget name (JHHMM+DDHH)meta.id;meta.maincharDateDate of observationtime.epochnullableExp[120/3600] Exposure timestime.duration;obs.exposureintS/N[1.42/107] Signal-to-noise ratiostat.snrfloatRV-V[-354.5/-53]? Radial velocity of the left (V) peakkm/sphys.veloc;pos.heliocentricfloatnullableRV-C[-282.3/35.8]? Radial velocity of the center (C)km/sphys.veloc;pos.heliocentricfloatnullableRV-R[-51.9/296.8]? Radial velocity of the right (R) peakkm/sphys.veloc;pos.heliocentricfloatnullableI-V[0.98/10.54]? Normalized intensity of the left (V) peakphot.flux;em.opt;arith.ratiofloatnullableI-C[0.08/11.95]? Normalized intensity of the center (C)phot.flux;em.opt;arith.ratiofloatnullableI-R[0.95/10.92]? Normalized intensity of the right (R) peakphot.flux;em.opt;arith.ratiofloatnullableFWHM[67.4/733.7]? FWHM of the H{alpha} profilekm/sspect.line.widthfloatnullableEW[-3.97/58.31]? EW of the H{alpha} emission ({AA})0.1nmspect.line.eqWidth;em.line.HalphafloatnullableHeIPresence/lack of He I 6678 line in our spectra? (1)meta.codecharJ/AJ/156/61/table4Astrometric parameters of targets suspected as members of open stellar clustersl_Dist2[>] Limit flag on Dist2meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameTarget name (JHHMM+DDHH)meta.id;meta.maincharClusterCluster namemeta.id.parentcharSize[3/9.8] Cluster sizearcminphys.angSizefloatpmRA1[-3.923/-0.569] Cluster proper motion in RAmas/yrpos.pm;pos.eq.rafloate_pmRA1[0.061/0.17] Uncertainty in pmRA1mas/yrstat.error;pos.pm;pos.eq.rafloatpmDE1[-5.45/-0.093] Cluster proper motion in DEmas/yrpos.pm;pos.eq.decfloate_pmDE1[0.076/0.23] Uncertainty in pmDE1mas/yrstat.error;pos.pm;pos.eq.decfloatRV1[-58.3/-6.8]? Cluster radial velocitykm/sspect.dopplerVelocfloatnullablee_RV1[1.4/2.6]? Uncertainty in RV1km/sstat.errorfloatnullableDist1[1.8/3.68] Cluster distancekpcpos.distance;pos.heliocentricfloate_Dist1[0.17/0.52] Uncertainty in Dist1kpcstat.errorfloatl_Dist[<] Limit flag on Distmeta.code.errorcharDist[1/11.2] Target distance from the cluster centerarcminpos.distance;pos.heliocentricfloatpmRA2[-4.911/-0.596] Target proper motion in RAmas/yrpos.pm;pos.eq.rafloate_pmRA2[0.022/0.325] Uncertainty in pmRA2mas/yrstat.error;pos.pm;pos.eq.rafloatpmDE2[-5.948/-0.425] Target proper motion in DEmas/yrpos.pm;pos.eq.decfloate_pmDE2[0.024/0.359] Uncertainty in pmDE2mas/yrstat.error;pos.pm;pos.eq.decfloatRV2[-71/64.7] Target radial velocity determined by our spectrakm/sspect.dopplerVelocfloatDist2[0.9/10] Target distancekpcpos.distance;pos.heliocentricfloate_Dist2[0.05/0.67]? Uncertainty in Dist2kpcstat.errorfloatnullableMemEstimated membership (1)meta.code.membercharRefReferences (2)meta.refchar