J/MNRAS/421/3622ivo://CDS.VizieR/J/MNRAS/421/3622doi:10.26093/cds/vizier.74213622CDSPaul K.T.Subramaniam A.Mathew B.Mennickent R.E.Sabogal B.2024-07-17T20:15:28Z2013-04-23T10:25:15ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsbe-starsline-intensitiesMennickent et al. (2002A&A...393..887M) and Sabogal et al. (2005, Cat. J/MNRAS/361/1055) identified a large number of classical Be (CBe) candidates (~3500) in the Large and Small Magellanic Clouds (LMC and SMC) based on their photometric variability using the OGLE II data base (Udalski et al., 1998, Cat. J/AcA/48/147; 2000, Cat. J/AcA/50/307). They classified these stars into four different groups based on the appearance of their variability. In order to refine and understand the nature of this large number of stars, we studied the infrared properties of the sample and the spectroscopic properties of a subsample. We cross-correlated the optical sample with the IRSF-MCPS catalogue to obtain the J, H, Ks magnitudes of all the four types of stars (~2500) in the LMC and SMC. Spectra of 120 stars belonging to the types 1, 2 and 3 were analysed to study their spectral properties.2012MNRAS.421.3622Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/421/3622CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/288 : IRSF Magellanic Clouds Point Source Catalog (Kato+ 2007)J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)J/AcA/50/307 : OGLE LMC BVI photometry (Udalski+, 2000)J/MNRAS/361/1055 : BVI photometry of LMC Be stars (Sabogal+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/421/3622https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/421/3622http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/421/3622https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/421/3622https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/421/3622http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/421/3622GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/421/3622/stars (Type 1, 2 and 3 stars in the Magellanic Clouds (LMC and SMC) present in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/421/3622/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/421/3622/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/421/3622/stars?GETtext/xml+votable180.050000true10.9037917-73.44380560.005555555555555556Cone search capability for table J/MNRAS/421/3622/tablea1 (Log of spectroscopic observations from the 1.5m CTIO telescope)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/421/3622/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/421/3622/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/421/3622/tablea1?GETtext/xml+votable180.050000true9.8258333-73.61572220.005555555555555556Cone search capability for table J/MNRAS/421/3622/tablea2 (Log of spectroscopic observations from the 2.5-m Las Campanas Observatory telescope)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/421/3622/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/421/3622/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/421/3622/tablea2?GETtext/xml+votable180.050000true75.343125-69.00136110.0055555555555555565/8274 6/33077 33089-33091 33120 33294-33295 33306 33316-33317 33328https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/421/3622?format=asciiOpticaldefaultJ/MNRAS/421/3622/starsType 1, 2 and 3 stars in the Magellanic Clouds (LMC and SMC) present in our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstInstrument (G1)mphys.size;instr.telfloatTSimbad column added by the CDSsrc.classcharStarStar namemeta.id;meta.maincharprimaryOGLEOGLE name (HHMMSS.ss+DDMMSS.s)meta.idchar(B-V)0? Dereddened B-V colour indexmagphot.color;em.opt.B;em.opt.VfloatnullableV0mag? Dereddened V magnitudemagphot.mag.reddFree;em.opt.Vfloatnullable(H-K)0? Dereddened H-K colour indexmagphot.color;em.IR.H;em.IR.Kfloatnullable(J-H)0? Dereddened J-H colour indexmagphot.color;em.IR.J;em.IR.HfloatnullableSpTMK spectral type (this study)src.spTypecharE(B-V)? Redenningmagphot.color.excessfloatnullableRV? Velocity (this study)km/sphys.veloc;pos.heliocentricintnullablee_RV? rms uncertainty on RVkm/sstat.errorintnullableo_RV? Number of lines averaged for RV determinationmeta.numberintnullableSpT.MMK spectral class from Mennickent et al. (2006A&A...457..949M) (only for table2) (1)src.spTypecharRV.M? Radial Velocity from Mennickent et al. (2006A&A...457..949M) (only for table2)km/sphys.veloc;pos.heliocentricintnullablee_RV.M? rms uncertainty on RV.M (only for table2)km/sstat.errorintnullableo_RV.M? Number of lines averaged for RV.M determination (only for table2)meta.numberintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from OGLE name (right ascension part)degpos.eq.ra;meta.main_DEPosition from OGLE name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/421/3622/ew_ctioSpectral lines from at CTIO observationsStarStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTSimbad column added by the CDSsrc.classcharW(Ca)II? CaII equivalent width0.1nmspect.line.eqWidthfloatnullableW(Heps)? H{epsilon} equivalent width0.1nmspect.line.eqWidthfloatnullableW(HeI)1? HeI equivalent width0.1nmspect.line.eqWidthfloatnullableW(Hd)? H{delta} equivalent width0.1nmspect.line.eqWidth;em.line.Hdeltafloatnullablen_W(Hd)[ea] Line with emission/absorption (1)meta.notecharW(Hg)? H{gamma} equivalent width0.1nmspect.line.eqWidth;em.line.HgammafloatnullableW(HeI)2? HeI equivalent width0.1nmspect.line.eqWidthfloatnullableW(HeI)3? HeI equivalent width0.1nmspect.line.eqWidthfloatnullablen_W(HeI)3[ea] Line with emission/absorption (1)meta.notecharW(Hb)? H{beta} equivalent width0.1nmspect.line.eqWidth;em.line.Hbetafloatnullablen_W(Hb)[ea] Line with emission/absorption (1)meta.notecharW(Ha)? H{alpha} equivalent width0.1nmspect.line.eqWidth;em.line.Halphafloatnullablen_W(Ha)[ea] Line with emission/absorption (1)meta.notecharCom[# ] Missing spectra (2)meta.notecharNsp? Number of spectra in the red regionmeta.numberintnullableJ/MNRAS/421/3622/table10Spectral lines from LCO observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar namemeta.id;meta.maincharW(Hd)? H{delta} 4101 equivalent width0.1nmspect.line.eqWidth;em.line.HdeltafloatnullableW(Hg)? H{gamma} 4340 equivalent width0.1nmspect.line.eqWidth;em.line.HgammafloatnullableW(HeI)1? HeI 4387 equivalent width0.1nmspect.line.eqWidthfloatnullableW(HeI)2? HeI 4471 equivalent width0.1nmspect.line.eqWidthfloatnullableW(FeII)1? FeII 4629 equivalent width0.1nmspect.line.eqWidthfloatnullableW(HeI)3? HeI 4713 equivalent width0.1nmspect.line.eqWidthfloatnullableW(Hb)? H{beta} 4861 equivalent width0.1nmspect.line.eqWidth;em.line.HbetafloatnullableW(HeI)4? HeI 4922 equivalent width0.1nmspect.line.eqWidthfloatnullableW(HeI)5? HeI 5015 equivalent width0.1nmspect.line.eqWidthfloatnullableW(SiII)? SiII 5052 equivalent width0.1nmspect.line.eqWidthfloatnullableW(FeII)2? FeII 5169 equivalent width0.1nmspect.line.eqWidthfloatnullableJ/MNRAS/421/3622/tablea1Log of spectroscopic observations from the 1.5m CTIO telescopeStarStar namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTSimbad column added by the CDSsrc.classcharOGLEOGLE ID (HHMMSS.ss+DDMMSS.s)meta.idcharObsBlueBlue spectra date of OBStime.epochnullableExpTB? Exposure time for blue spectrastime.duration;obs.exposureintnullableObsRedRed spectra date of OBStime.epochnullableExpTR? Exposure time for red spectrastime.duration;obs.exposureintnullableComComment on Halpha profilemeta.note;spect.line.profile;em.line.Halphachar_RAPosition from OGLE name (right ascension part)degpos.eq.ra;meta.main_DEPosition from OGLE name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/421/3622/tablea2Log of spectroscopic observations from the 2.5-m Las Campanas Observatory telescoperecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTSimbad column added by the CDSsrc.classcharStarStar namemeta.id;meta.maincharOGLEOGLE ID (HHMMSS.ss+DDMMSS.s)meta.idcharObsDate of observationtime.epochnullableExpTExposure timestime.duration;obs.exposureintNexpNumber of exposuresmeta.numberintComComment on Hbeta profilemeta.note;spect.line.profile;em.line.Hbetachar_RAPosition from OGLE name (right ascension part)degpos.eq.ra;meta.main_DEPosition from OGLE name (declination part)degpos.eq.dec;meta.main