J/ApJ/529/723ivo://CDS.VizieR/J/ApJ/529/723doi:10.26093/cds/vizier.15290723CDSGibson B.K.Stetson P.B.Freedman W.L.Mould J.R.Kennicutt R.C.Jr,Huchra J.P.Sakai S.Graham J.A.Fassett C.I.Kelson D.D.Ferrarese L.,Hughes S.M.G.Illingworth G.D.Macri L.M.Madore B.F.Sebo K.M.,Silbermann N.A.2004-06-05T21:18:40Z2004-06-05T21:18:07ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryCepheid-based distances to seven Type Ia supernovae (SNe) host galaxies have been derived using the standard Hubble Space Telescope (HST) Key Project on the Extragalactic Distance Scale pipeline. For the first time, this allows for a transparent comparison of data accumulated as part of three different HST projects: the Key Project, the Sandage et al. Type Ia supernovae (SNe) program, and the Tanvir et al. Leo I Group study. Reanalyzing the Tanvir et al. galaxy and six Sandage et al. galaxies, we find a mean (weighted) offset in true distance moduli of 0.12+/-0.07mag; i.e., 6% in linear distance, in the sense of reducing the distance scale or increasing H_0_. Adopting the reddening-corrected Hubble relations of Suntzeff et al. tied to a zero point based on SNe 1990N, 1981B, 1998bu, 1989B, 1972E, and 1960F and the photometric calibration of Hill et al. leads to a Hubble constant of H_0_=68+/-2(random)+/-5(systematic)km/s/Mpc. Adopting the Kennicutt et al. Cepheid period-luminosity-metallicity dependency decreases the inferred H_0_ by 4%. The H0 result from Type Ia SNe is now in good agreement, to within their respective uncertainties, with that from the Tully-Fisher and surface brightness fluctuation relations.2000ApJ...529..723Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/529/723CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/463/26 : Extragalactic Distance Scale Key Project. III (Kelson+ 1996)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/521/155 : New Cepheids and distance to NGC 4535 (Macri+, 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/ApJ/529/723https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/529/723http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/529/723https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/529/723https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/529/723http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/529/723GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapHSTOpticaldefaultJ/ApJ/529/723/appenProperties of Cepheids detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharCNNCepheid number in the cluster (1)meta.id;meta.maincharChip? Chip numbermeta.id;instrintnullableXposX pixel positionpixpos.cartesian.x;instr.detfloatYposY pixel positionpixpos.cartesian.y;instr.detfloatVmagALLFRAME V magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.errorfloatImagALLFRAME I magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty on Imagmagstat.errorfloatPerTRIAL perioddtime.periodfloate_Perrms uncertainty on Pmagdstat.errorfloat