J/ApJ/780/59ivo://CDS.VizieR/J/ApJ/780/59doi:10.26093/cds/vizier.17800059CDSGraczyk D.Pietrzynski G.Thompson I.B.Gieren W.Pilecki B.,Konorski P.Udalski A.Soszynski I.Villanova S.Gorski M.,Suchomska K.Karczmarek P.Kudritzki R.-P.Bresolin F.Gallenne A.2017-10-13T15:41:35Z2015-01-30T07:24:58ZCDS support team

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

cds-question@unistra.frmagellanic-cloudseclipsing-binary-starslate-type-starsphotometryradial-velocityWe present a distance determination to the Small Magellanic Cloud (SMC) based on an analysis of four detached, long-period, late-type eclipsing binaries discovered by the Optical Gravitational Lensing Experiment (OGLE) survey. The components of the binaries show negligible intrinsic variability. A consistent set of stellar parameters was derived with low statistical and systematic uncertainty. The absolute dimensions of the stars are calculated with a precision of better than 3%. The surface brightness-infrared color relation was used to derive the distance to each binary. The four systems clump around a distance modulus of (m - M) = 18.99 with a dispersion of only 0.05 mag. Combining these results with the distance published by Graczyk et al. for the eclipsing binary OGLE SMC113.3 4007, we obtain a mean distance modulus to the SMC of 18.965+/-0.025 (stat.)+/-0.048 (syst.) mag. This corresponds to a distance of 62.1+/-1.9 kpc, where the error includes both uncertainties. Taking into account other recent published determinations of the SMC distance we calculated the distance modulus difference between the SMC and the Large Magellanic Cloud equal to 0.458+/-0.068 mag. Finally, we advocate {mu}_SMC_= 18.95+/-0.07 as a new "canonical" value of the distance modulus to this galaxy.2014ApJ...780...59Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/780/59CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/322 : OGLE-III. Magellanic Clouds stellar proper motions (Poleski+, 2012)J/AcA/62/219 : OGLE: Gaia South Ecliptic Pole Field (Soszynski+, 2012)J/AJ/138/1661 : The Araucaria Project: RR Lyrae in SMC (Szewczyk+, 2009)J/AcA/54/1 : OGLE II SMC eclipsing binaries (Wyrzykowski+, 2004)J/AcA/48/563 : BVI photometry of OGLE SMC eclipsing binaries (Udalski+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/780/59https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/780/59http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/780/59https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/780/59https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/780/59http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/780/59GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/780/59/table1 (The target stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/780/59/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/780/59/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/780/59/table1?GETtext/xml+votable180.050000true12.0945833-72.81350.0055555555555555566/33306 33316 333173.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/780/59?format=asciiOpticaldefaultJ/ApJ/780/59/table1The target starsSimbadNameSimbad column added by the CDSmeta.idcharFieldOGLE-SMC field (SMCNNN.N)meta.id;obs.fieldcharPerOrbital perioddtime.periodfloatVCShow the velocity curvesmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLEIdentifier of target eclipsing binary systemmeta.id;pos.frameintNameShortened name of target eclipsing binary system (column added at CDS)meta.idcharprimaryRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVmagThe V-band magnitudemagphot.mag;em.opt.VfloatV-IThe (V-I) color indexmagphot.color;em.opt.V;em.opt.IfloatV-KThe (V-K) color indexmagphot.color;em.opt.V;em.IR.KfloatJ-KThe (J-K) color indexmagphot.color;em.IR.J;em.IR.KfloatU98Data from Udalski et al. 1998 (cat. J/AcA/48/563)meta.ref.urlintnullableW04Data from Wyrzykowski et al. 2004 (cat. J/AcA/54/1)meta.ref.urlintnullableLCShow the light curvesmeta.ref.urlcharJ/ApJ/780/59/table2The photometry of target systemse_magError in magmagstat.error;phot.magfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameShortened name of target eclipsing binary systemmeta.id;pos.framecharBand[VIK] Photometric band of observationobs.param;obscharHJDHeliocentric Julian Date (HJD-2450000)dtime.epochdoublemagObserved magnitude in Bandmagphot.magfloatJ/ApJ/780/59/table3The radial velocities measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameShortened name of target eclipsing binary systemmeta.id;pos.framecharHJDHeliocentric Julian Date (HJD-2450000)dtime.epochdoubleRV1Radial velocity of a primary componentkm/sspect.dopplerVelocfloate_RV1Formal error in RV1km/sstat.errorfloatRV2Radial velocity of a secondary componentkm/sspect.dopplerVelocfloate_RV2Formal error in RV2km/sstat.errorfloatInstIdentification of the spectrograph used (HARPS, MIKE-Blue, or MIKE-Red) (1)meta.id;instr.setupchar