J/MNRAS/511/2125ivo://CDS.VizieR/J/MNRAS/511/2125doi:10.26093/cds/vizier.75112125CDSCsornyei G.Szabados L.Molnar L.Cseh B.Egei N.Kalup Cs.,Kecskemethy V.Konyves-Toth R.Sarneczky K.Szakats R.2024-08-22T20:15:11Z2022-02-14T13:16:46ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryvisible-astronomyInvestigating period changes of classical Cepheids through the framework of O-C diagrams provides a unique insight to the evolution and nature of these variable stars. In this catalogue, we present the O-C diagrams and period change rates derived for 148 Galactic Classical Cepheids variables, along with the exact period values of these stars for a given date as determined by the O-C diagrams. The catalogue also contains photometric data adopted from Gaia EDR3 and the David Dunlap Observatory Cepheid Database, which were used for the study, and the results obtained from the statistical modelling of the individual O-C diagrams. We find that a significant fraction of the Cepheids show period fluctuations, which appear on the O-C diagrams as quasi-periodic waves, which could be modelled and described through the statistical framework. For completeness, we also included all photometric data collected from various previous publications and survey that were used for the research.2022MNRAS.511.2125Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/511/2125CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/350 : Gaia EDR3 (Gaia Collaboration 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/511/2125https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/511/2125http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/511/2125https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/511/2125https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/511/2125http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/511/2125GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/511/2125/table1 (Main summary file of obtained period change rates, exact period values and photometric properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/511/2125/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/511/2125/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/511/2125/table1?GETtext/xml+votable180.050000true292.3390061-7.04407280.0055555555555555566/1239 1340 1388 1426 1431-1432 1858 1985 3005 3045 3342 3361 3599 3632 3849 12846 12934 12971 13201 13288 13931 13933 13961 14009 14239 14260 14262 14265 14303 14323 14328 14409 14436 14625 14637 14709 15388 15461 15632-15633 15660 21514 21542 21648 22071 22074 22115-22116 22267 23622 23662 23762 23846 23922 23936 24002 24326 24372 24424 28779 28808 28831 28916 28918 29081 29166 29216 29249 29533 29665 29875 29897 30128 30258 30270 30307 30311 30313 30321-30322 30504 30646 32064 32074 33804 37203 37223 37303 37334 37336 37340 37674 37746 37757 37867 37927-37928 37930-37931 37938-37939 37963 37993 38020 38022-38023 39231-39232 39244 39283 39348 39374 39382 39771 39794 39886 39892 39908 41385 41556 41599 41608 41626 41667 41674 41681 41722 41737 41761 41780 41842 41877 42185 42297 42378 42820 43017 43022 43047 430561.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/511/2125?format=asciiOpticaldefaultJ/MNRAS/511/2125/table1Main summary file of obtained period change rates, exact period values and photometric propertiesSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCShow the V light curves from table 5meta.ref.urlcharNameGCVS name of Cepheidmeta.id;meta.maincharP(O-C)Period assumed for O-C diagramdtime.perioddoubleEpP(O-C)Reference epoch for O-C diagramtime.epochdoubleP1Period determined for JD2459591.5dtime.perioddoubledP/dtPeriod change rate0.01d/yrarith.rate;time.perioddoublee_dP/dtPeriod change rate error0.01d/yrstat.errordoubleGmagGaia EDR3 G magnitudemagphot.mag;em.optfloatBP-RPGaia EDR3 BP-RP colourmagphot.color;em.opt.B;em.opt.RfloatE(B-V)Assumed reddeningmagphot.color.excessfloate_E(B-V)Reddening errormagstat.errorfloatlog10(Eps)? Eddington-Plakidis period fluctuation parameterstat.fit.paramfloatnullablePlxGaia EDR3 parallaxmaspos.parallaxfloate_PlxGaia EDR3 parallax errormasstat.error;pos.parallaxfloat_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/511/2125/table2Results of the F-tests conducted on the O-C diagram with different models, fluctuation amplitudesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGCVS name of Cepheidmeta.id;meta.maincharF-lpF-statistic of first model pair (1)stat.paramdoubleF-lwF-statistic of second model pair (2)stat.paramfloatF-pwF-statistic of third model pair (3)stat.paramfloatAmpl? O-C amplitude of found fluctuationdsrc.var.amplitudefloatnullableJ/MNRAS/511/2125/table3Photometry obtained at Piszkestet Observatory (for 14 stars)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGCVS name of Cepheidmeta.id;meta.maincharJDJulian date of observationdtime.epochdoubleVmagBessel V magnitudemagphot.mag;em.opt.VfloatJ/MNRAS/511/2125/table4Table of obtained O-C diagrams (for 148 stars)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGCVS name of Cepheidmeta.id;meta.maincharHJDHeliocentric Julian datedtime.epochdoubleindexedEpochEpoch of O-C point (1)time.epochintO-CO-C value at epochdstat.fit.residualdoublee_O-CO-C errordstat.error;stat.fit.omcfloatSourceSource of photometrymeta.bibcharJ/MNRAS/511/2125/table5Photometric time series used for this study (for 147 stars)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGCVS name of Cepheidmeta.id;meta.maincharHJDHeliocentric Julian datedtime.epochdoubleindexedVmagV-band magnitude (1)magphot.mag;em.opt.VdoubleSourceSource of photometrymeta.bibchar