J/ApJS/142/71ivo://CDS.VizieR/J/ApJS/142/71doi:10.26093/cds/vizier.21420071CDSSebo K.M.Rawson D.Mould J.Madore B.F.Putman M.E.Graham J.A.,Freedman W.L.Gibson B.K.Germany L.M.2017-12-18T07:57:17Z2009-10-19T14:25:25ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsvariable-starsinfrared-photometryvisible-astronomybroad-band-photometryA homogeneous set of ground-based BVRI observations of ~600 Cepheids is presented to check the Cepheid period-luminosity (PL) zero point for the Large Magellanic Cloud (LMC). The sample of Cepheids is completely self-contained and has been reduced consistently to eliminate photometric differences caused by combining multiple sources of photometry. The Cepheid distances to nearby galaxies obtained by the Hubble Space Telescope (HST) Key Project on the Extragalactic Distance Scale were computed assuming a "standard" PL relation based on a compilation of photoelectric observations of 34 Cepheids and a standard distance modulus to the LMC of 18.50. The final Key Project results substituted a statistically stronger PL relation obtained by the OGLE collaboration. In this paper we compare our data with the OGLE PL relation; the subsample of LMC Cepheids with similar periods to those discovered in the nearby galaxies is fainter at the relevant periods by 0.04+/-0.02mag than the OGLE sample. Substituting in turn this PL relation for that of the OGLE collaboration would raise the Hubble constant by 2%+/-1%, a correction which is not significant. The multicolor data set will also be useful in considering the effects of reddening and chemical composition and deriving an improved Cepheid period-luminosity relation for the LMC.2002ApJS..142...71Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/142/71CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)J/ApJ/507/655 : VI photometry of new Cepheids in NGC 2541 (Ferrarese+ 1998)J/ApJ/512/48 : VI photometry of new Cepheids in NGC 4725 (Gibson+, 1999)J/ApJ/514/614 : VI photometry of new Cepheids in NGC 3198 (Kelson+, 1999)J/ApJ/523/540 : VI photometry of new Cepheids in NGC 3319 (Sakai+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/142/71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/142/71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/142/71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/142/71https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/142/71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/142/71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/142/71/table4 (LMC Cepheids - Properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/142/71/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/142/71/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/142/71/table4?GETtext/xml+votable180.050000true70.8367083-69.230.0055555555555555565/8263 8269 8274 6/33051 33073 33084 33088 33090 33091 33092 33093 33094 33100 33101 33102 33104 33106 33107 33108 33110 33112 33113 33120 33121 33123 33125 33126 33127https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/142/71?format=asciiOpticalInfrareddefaultJ/ApJS/142/71/table4LMC Cepheids - PropertiesNameCepheid namemeta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOSimbad column added by the CDSmeta.ref.urlcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maindelV? Calculated Vmag error arising from randomly sampling a Fundamental-mode lightcurve with a one mag amplitudemagstat.error;phot.mag;em.opt.VfloatnullablePeriodCepheid perioddtime.periodfloatBmagThe mean phase-weighted B band magnitudemagphot.mag;em.opt.BfloatVmagThe mean phase-weighted V band magnitudemagphot.mag;em.opt.VfloatRmagThe mean phase-weighted R band magnitudemagphot.mag;em.opt.RfloatImagThe mean phase-weighted I band magnitudemagphot.mag;em.opt.IfloatSimbadNameSimbad column added by the CDSmeta.idcharJ/ApJS/142/71/table3LMC Cepheids - PhotometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCepheid namemeta.id;meta.maincharVJD-2400000? Julian date (+2400000.0) of Vmagdtime.epochdoublenullableVmag? The V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? The error in Vmagmagstat.error;phot.mag;em.opt.VfloatnullableBJD-2400000? Julian date (+2400000.0) of Bmagdtime.epochdoublenullableBmag? The B band magnitudemagphot.mag;em.opt.Bfloatnullablee_Bmag? The error in Bmagmagstat.error;phot.mag;em.opt.BfloatnullableRJD-2400000? Julian date (+2400000.0) of Rmagdtime.epochdoublenullableRmag? The R band magnitudemagphot.mag;em.opt.Rfloatnullablee_Rmag? The error in Rmagmagstat.error;phot.mag;em.opt.RfloatnullableIJD-2400000? Julian date (+2400000.0) of Imagdtime.epochdoublenullableImag? The I band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? The error in Imagmagstat.error;phot.mag;em.opt.Ifloatnullable