J/A+A/393/887ivo://CDS.VizieR/J/A+A/393/887doi:10.26093/cds/vizier.33930887CDSMennickent R.E.Pietrzynski G.Gieren W.Szewczyk O.2017-06-26T11:50:48Z2013-12-11T12:28:40ZCDS support team

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

cds-question@unistra.frmagellanic-cloudspre-main-sequence-starsbe-starsvariable-starsphotometryRecently the OGLE experiment has provided accurate light curves and colours for about 2 millions stars in the Small Magellanic Cloud. We have examined this database for its content of Be stars, applying some selection criteria, and we have found a sample of ~1000 candidates. Some of these stars show beautiful light curves with amazing variations never observed in any Galactic variable. We find outbursts in 13% of the sample (type-1 stars), high and low states in 15%, periodic variations in 7%, and the usual variations seen in Galactic Be stars in 65% of the cases. The Galactic counterparts of type-1 objects could be the outbursting Be stars found by Hubert & Floquet (1998, Cat. J/A+A/335/565) after the analysis of Hipparcos photometry. We discuss the possibility that type-1 stars could correspond to Be stars with accreting white dwarf companions or alternatively, blue pre-main sequence stars surrounded by thermally unstable accretion disks. We provide coordinates and basic photometric information for these stars and some examples of light curves.2002A&A...393..887Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/393/887CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/335/565 : Be stars variability (Hubert+ 1998)J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/393/887https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/393/887http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/393/887https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/393/887https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/393/887http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/393/887GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/393/887/SMC-Be (Candidate Be stars detected)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/393/887/SMC-Be?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/393/887/SMC-Be?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/393/887/SMC-Be?GETtext/xml+votable180.050000true9.0973333-73.65619440.0055555555555555566/33294-33295 33304 33306 33316-33317 33328https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/393/887?format=asciiOpticaldefaultJ/A+A/393/887/SMC-BeCandidate Be stars detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTSimbad column added by the CDSsrc.classcharOGLEOGLE name (HHMMSS.ss+DDMMSS.s)meta.id;meta.maincharDphiDistance to the nearest star detected with Dophot, {Delta}{phi}arcsecpos;arith.difffloatVmagV magnitudemagphot.mag;em.opt.VfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatV-IV-I colour indexmagphot.color;em.opt.V;em.opt.IfloatrmsScatter of I-band magnitudemagstat.errorfloatl_Time[~] Limit flag on Timemeta.code.error;time.epochcharTime? Time scale (for type-3 stars)dtime.periodfloatnullablee_Time? rms uncertainty on Timedstat.error;time.epochfloatnullableNotesNotes (1)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition for OGLE name (right ascension part)degpos.eq.ra;meta.main_DEPosition for OGLE name (declination part)degpos.eq.dec;meta.main