J/ApJ/551/973ivo://CDS.VizieR/J/ApJ/551/973doi:10.26093/cds/vizier.15510973CDSSaha A.Sandage A.Thim F.Labhardt L.Tammann G.A.Christensen J.,Panagia N.Macchetto F.D.2017-06-13T11:08:41Z2001-09-29T00:00:29ZCDS support team

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

cds-question@unistra.frvariable-starsphotometrystellar-distanceRepeated imaging observations have been made of NGC 4527 with the Hubble Space Telescope between 1999 April and June, over an interval of 69 days. Images were obtained on 12 epochs in the F555W band and on five epochs in the F814W band. The galaxy hosted the Type Ia supernova SN 1991T, which showed relatively unusual behaviour by having both an abnormal spectrum near light maximum, and a slower declining light curve than the prototypical Branch-normal SNe Ia. A total of 86 variables that are putative Cepheids have been found, with periods ranging from 7.4 days to over 70 days.2001ApJ...551..973Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/551/973CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2001)J/ApJ/522/802 : Cepheid calibration of SN 1989B in NGC 3627 (Saha+, 1999)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/551/973https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/551/973http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/551/973https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/551/973https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/551/973http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/551/973GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/551/973/table4Characteristics of the CepheidsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SST2001]Object identification in a Chip number-Variable number format (CN-VNN)meta.id;meta.maincharPerPerioddtime.periodfloatu_PerUncertainty flag on Permeta.code.errorcharVmag? Mean V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Magnitude scatter in Vmagmagstat.errorfloatnullableImag? Mean I_c_ band magnitudemagphot.mag;em.opt.Ifloatnullablee_Imag? Magnitude scatter in Imagmagstat.errorfloatnullableModV? Apparent distance modulus from Vmag (1)magphot.mag.distModfloatnullableModI? Apparent distance modulus from Imag (2)magphot.mag.distModfloatnullableModT? True distance modulus, corrected for normal extinction (3)magphot.mag.distModfloatnullablee_ModT? The RMS uncertainty in ModTmagstat.errorfloatnullableq_[SST2001]Light-curve quality index on [SST2001] (4)meta.code.qualintJ/ApJ/551/973/table5DoPHOT and ROMAFOT mean magnitudes in V and I of 66 Cepheid candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SST2001]Object identification in a Chip number-Variable number format (CN-VNN)meta.id;meta.mainchar<Vmag>dDoPHOT mean V magnitudemagphot.mag;em.opt.Vfloat<Imag>d? DoPHOT mean I magnitudemagphot.mag;em.opt.Ifloatnullableq_<Vmag>d? DoPHOT quality indexmeta.code.qualintnullable<Vmag>r? ROMAFOT mean V magnitudemagphot.mag;em.opt.Vfloatnullable<Imag>r? ROMAFOT mean I magnitudemagphot.mag;em.opt.Ifloatnullableq_<Vmag>r? ROMAFOT quality indexmeta.code.qualintnullableJ/ApJ/551/973/table2Position of the Variable Stars on U42G0101R and U42G0102R images identified in the HST data archiverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SST2001]Object identification in a Chip number-Variable number format (CN-VNN)meta.id;meta.maincharprimaryXposX positionpixpos.cartesian.x;instr.detfloatYposY positionpixpos.cartesian.y;instr.detfloatJ/ApJ/551/973/table3Photometry of variable stars: magnitudes and error estimatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[SST2001]Object identification in a Chip number-Variable number format (CN-VNN)meta.id;meta.maincharFiltFilter name, F555W (~V band) or F814W (~I band)meta.code;instr.filtercharHJDHeliocentric Julian datedtime.epochdoublemag? WFPC Filt band magnitudemagphot.magfloatnullablee_mag? Uncertainty in magmagstat.errorfloatnullable