J/A+A/363/L1ivo://CDS.VizieR/J/A+A/363/L1doi:10.26093/cds/vizier.33639001CDSKovacs G.2000-12-10T08:33:09Z2000-12-10T09:33:04ZCDS support team

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

cds-question@unistra.frgalaxiesphotometrystellar-distancehorizontal-branch-starsvariable-starssurveysWe use double-mode RR Lyrae (RRd) stars from the MACHO variable star database of the Large Magellanic Cloud (LMC) to estimate its distance, by utilizing photometric data, linear pulsation and stellar atmosphere models. If we set E_(B-V)_=0.11 and [M/H]=-1.5 for LMC, we get M-m=18.52mag. The fact that the distance moduli obtained in this and in our former studies of cluster RRd and Small Magellanic Cloud beat Cepheids agree so well, implies that the only serious source of error is the zero point of the temperature scale, which should not have larger than +/-0.10mag effect on the distance modulus.2000A&A...363L...1Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/363/L1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/114/326 : MACHO Variables V. (Alcock+ 1997)J/ApJ/542/257 : MACHO Variables IX. (Alcock+ 2000)http://wwwmacho.mcmaster.ca : MACHO home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/363/L1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/363/L1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/363/L1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/363/L1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/363/L1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/363/L1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/363/L1/lmcrrd (Double mode RR Lyr stars in LMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/363/L1/lmcrrd?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/363/L1/lmcrrd?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/363/L1/lmcrrd?GETtext/xml+votable180.050000true76.15-69.4050.0055555555555555565/8263 8272 8274 6/33047 33076-33077 33079 33092 33094 33100 33102 33120-33122https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/363/L1?format=asciiOpticaldefaultJ/A+A/363/L1/lmcrrdDouble mode RR Lyr stars in LMCP0Perioddtime.perioddoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMACHOMACHO identifier (FFF.NNNNN.NNNN)meta.id;meta.maincharP1/P0Period ratiotime.periodfloatVmagAverage V magnitudemagphot.mag;em.opt.VfloatV-RAverage V-R_c_ color indexmagphot.color;em.opt.V;em.opt.RfloatNpointsNumber of data pointsmeta.numberintRAJ2000? Right ascension (J2000) (1)pos.eq.ra;meta.mainnullableDEJ2000? Declination (J2000) (1)pos.eq.dec;meta.mainnullable