J/A+A/683/A234ivo://CDS.VizieR/J/A+A/683/A234doi:10.26093/cds/vizier.36830234CDSBhardwaj A.Ripepi V.Testa V.Molinaro R.Marconi M.De Somma G.,Trentin E.Musella I.Storm J.Sicignano T.Catanzaro G.2024-11-29T20:01:14Z2024-03-22T09:28:59ZCDS support team

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

cds-question@unistra.frvariable-starsvisible-astronomysloan-photometryThe highly debated effect of metallicity on the absolute magnitudes of classical Cepheid variables needs to be properly quantified for determining accurate and precise distances based on their Leavitt Law. Our goal is to obtain homogeneous optical and near-infrared light curves of Milky Way Cepheid variables complementing their already collected high-resolution spectroscopic metallicities as part of the C-MetaLL survey. Together with Gaia parallaxes, we investigate period-luminosity-metallicity relations for Cepheid variables at multiple wavelengths. We present homogeneous multiband (grizJHKs) time-series observations of 78 Cepheids including 49 fundamental mode variables and 29 first-overtone mode variables. These observations were collected simultaneously using the ROS2 and REMIR instruments at the Rapid Eye Mount telescope. The Cepheid sample covers a large range of distances (0.5-19.7kpc) with varying precision of parallaxes, and thus astrometry-based luminosity fits were used to derive PL and PW relations in optical Sloan (griz) and near-infrared (JHKs) filters. These empirically calibrated relations exhibit large scatter primarily due to larger uncertainties in parallaxes of distant Cepheids, but their slopes agree well with those previously determined in the literature. Using homogeneous high-resolution spectroscopic metallicities of 61 Cepheids covering -1.1<[Fe/H]<0.6dex, we quantified the metallicity dependence of PL and PW relations which varies between -0.30+/-0.11 (in Ks) and -0.55+/-0.12 (in z) mag/dex in grizJHKs bands. However, the metallicity dependence in the residuals of the PL and PW relations is predominantly seen for metal-poor stars ([Fe/H]<-0.3dex), which also have larger parallax uncertainties. The modest sample size precludes us from separating the contribution to the residuals due to parallax uncertainties, metallicity effects, and reddening errors. While this Cepheid sample is not optimal for calibrating the Leavitt law, upcoming photometric and spectroscopic datasets of the C-MetaLL survey will allow the accurate derivation of PL and PW relations in the Sloan and near-infrared bandpasses, which will be useful for the distance measurements in the era of the Vera C. Rubin Observatory's Legacy Survey of Space and Time and upcoming extremely large telescopes.2024A&A...683A.234Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/683/A234CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/MNRAS/508/4047 : 47 classical Cepheids HARPSN@TNG spectroscopy (Ripepi+ 2021)J/A+A/674/A17 : Gaia Data Release 3. The Cepheids sample (Ripepi+, 2023)J/A+A/681/A65 : Cepheids PL relation metallicity dependence (Trentin+, 2024)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/683/A234https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/683/A234http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/683/A234https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/683/A234https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/683/A234http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/683/A234GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/683/A234/table1 (Pulsation properties of 78 Cepheids)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/683/A234/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/683/A234/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/683/A234/table1?GETtext/xml+votable180.050000true293.936488118.94518030.0055555555555555566/12968 12970 13032 14341 20861-20863 20891 20945 20958 21509 21638 21672 21704 22024 22055 22223 22432 23659-23660 23727 23755 23769 23808 23967 24339 28918 29042 29091 29102 29106 29160 29166 29249 29456 29510-29511 29521 29526 29533 29542 30210 30243-30245 30313 30316 30327 30387 30401 30422 30452 30637 30646 30659 30688 30692 30709 32067 37706 37734 39196 39316 39353 39390 39697 39784 39887 39896 40634 41325 42224 42356 42807 428327.952274030004205e-20 1.7798557115773645e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/683/A234?format=asciiOpticaldefaultJ/A+A/683/A234/table1Pulsation properties of 78 CepheidsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 Source IDmeta.id;meta.mainn_GaiaDR3[a] Note on GaiaDR3 (1)meta.notecharPerPulsation perioddtime.perioddoubleModePulsation mode (FU/FO)meta.code;src.varchargmag? Intensity-averaged magnitude in g-bandmagphot.mag;em.opt.BfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharrmagIntensity-averaged magnitude in g-bandmagphot.mag;em.opt.RfloatimagIntensity-averaged magnitude in i-bandmagphot.mag;em.opt.IfloatzmagIntensity-averaged magnitude in z-bandmagphot.mag;em.opt.IfloatJmagIntensity-averaged magnitude in J-bandmagphot.mag;em.IR.JfloatHmagIntensity-averaged magnitude in H-bandmagphot.mag;em.IR.HfloatKmag? Intensity-averaged magnitude in K-bandmagphot.mag;em.IR.KfloatnullableQF[ABC] Light curve quality flag (2)meta.code.qualcharE(B-V)? Color-excess E(B-V) from (3)magphot.color.excessfloatnullable[Fe/H]? Metallicities ([Fe/H])phys.abund.FefloatnullableFlagSource of [Fe/H] (4)meta.code.errorchare_gmag? Uncertainty in gmagmagstat.error;phot.magfloatnullablee_rmagUncertainty in rmagmagstat.error;phot.magfloate_imagUncertainty in imagmagstat.error;phot.magfloate_zmagUncertainty in zmagmagstat.error;phot.magfloate_JmagUncertainty in Jmagmagstat.error;phot.magfloate_HmagUncertainty in Hmagmagstat.error;phot.magfloate_Kmag? Uncertainty in Kmagmagstat.error;phot.magfloatnullablee_E(B-V)? Uncertainty in E(B-V)magstat.errorfloatnullablee_[Fe/H]? Uncertainty in [Fe/H]stat.error;phys.abund.Fefloatnullable_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.main