J/A+A/681/A65ivo://CDS.VizieR/J/A+A/681/A65doi:10.26093/cds/vizier/bc-n9/lgfCDSTrentin E.Ripepi V.Molinaro R.Catanzaro G.Storm J.De Somma G.,Marconi M.Bhardwaj A.Gatto M.Testa V.Musella I.Clementini G.,Leccia S.2026-07-03T06:35:53Z2024-01-16T10:22:02ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryvisible-astronomychemical-abundancesClassical Cepheids (DCEPs) play a fundamental role in the calibration of the extragalactic distance ladder, which eventually leads to the determination of the Hubble constant(H0) thanks to the period-luminosity (PL) and period-Wesenheit (PW) relations exhibited by these pulsating variables. Therefore, it is of great importance to establish the dependence of PL and PW relations on metallicity. We aim to quantify the metallicity dependence of the PL and PW relations of the Galactic DCEPs for a variety of photometric bands, ranging from optical to near-infrared. We gatheres a literature sample of 910 DCEPs with available [Fe/H] values from high-resolution spectroscopy or metallicities from the Gaia Radial Velocity Spectrometer (RVS). For all these stars, we collected photometry in the G_BP_, G_RP_, G, I, V, J, H, and K_S_ bands and astrometry from Gaia Data Release 3 (DR3). We used these data to investigate the metal dependence of both the intercepts and slopes of a variety of PL and PW relations at multiple wavelengths. We find a large negative metallicity effect on the intercept ({gamma} coefficient) of all the PL and PW relations investigated in this work, while present data still do not allow us to draw firm conclusions regarding the metal dependence of the slope ({delta} coefficient). The typical values of {gamma} are around -0.4:-0.5mag/dex, which is larger than most of the recent determinations present in the literature. We carried out several tests, which confirm the robustness of our results. As in our previous works, we find that the inclusion of a global zero point offset of Gaia parallaxes provides smaller values of {gamma} (in an absolute sense). However, the assumption of the geometric distance of the Large Magellanic Cloud (LMC) seems to indicate that larger values of {gamma} (in an absolute sense) would be preferred.2024A&A...681A..65Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/681/A65CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/508/4047 : 47 classical Cepheids HARPSN@TNG spectroscopy (Ripepi+ 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/681/A65https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/681/A65http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/681/A65https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/681/A65https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/681/A65http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/681/A65GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/681/A65/table1 (Photometric, astrometric, and spectroscopic data for the DCEP used in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/681/A65/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/681/A65/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/681/A65/table1?GETtext/xml+votable180.050000true91.6456087119426.329222811270.0055555555555555565/3650 7661 9333 9478 9482 9807 9971 6/1239 1323 1331 1340 1348 1385 1388 1402 1411 1421 1426 1429 1431-1432 1441 1445 1460 1465 1467 1625 1631 1652-1653 1752 1765 1785 1789 1803 1824 1829 1836-1838 1858 1920 1935 1962 1985 2805 2932 2941 3000 3005 3020 3022 3033 3045-3047 3049-3050 3052-3054 3059-3061 3063 3070 3157 3182 3190 3196 3239 3252 3255 3261 3263 3270 3278 3284-3285 3304 3306 3309-3310 3312 3322 3328-3329 3332 3336-3337 3342 3361-3362 3364-3365 3459 3589 3599-3601 3610 3616 3621 3627 3629-3633 3641 3645 3647 3650 3656-3657 3663 3665-3666 3682 3696 3712-3714 3722 3724-3725 3728 3731 3744 3849 12846 12934 12963 12968 12970-12971 12987 12991 13026 13032 13166 13201 13288 13309-13310 13931 13933 13961 13963 13990 14009 14047 14059 14063 14075 14078 14190 14199 14205 14212 14238-14239 14246 14251 14260 14262 14265 14267 14271 14282-14283 14288 14291-14292 14295 14300-14301 14303 14314 14317 14320-14321 14323-14324 14328-14329 14340 14353 14358-14359 14361 14400 14402 14404 14407 14409 14411 14423-14424 14427-14428 14430 14436 14445 14449 14453 14455 14457 14469 14533 14607 14609 14618-14619 14625 14629-14630 14634 14637 14640 14645-14646 14653 14660 14678 14686 14690 14698 14709 14718 14730 14736 14770 15360 15363 15374 15378-15379 15387-15388 15392-15393 15396 15411 15414 15424-15425 15429 15432 15434 15437-15438 15441 15447-15448 15451 15457 15461 15464 15570 15585 15616 15618 15632-15634 15638-15639 15652 15660 15680 15693 15698 15701 15959 20805 20820 20823 20827 20833 20850-20852 20861-20863 20891 20945 20957-20958 20978 21509 21511 21514 21516 21525 21542 21544 21546 21551 21632 21635 21638 21648 21666 21671-21672 21679 21683 21686 21704 22020-22021 22024 22044 22055 22064 22068-22069 22071 22074 22078 22090 22106 22115-22116 22122 22124 22149 22165 22169 22181 22203 22207 22210 22213-22214 22219-22221 22223 22227 22255 22267 22270 22432 22438 23619 23622-23623 23635 23643 23659-23660 23662 23668-23670 23727 23755 23762 23764 23769 23778 23808 23816 23841 23846 23852 23922 23936 23967 24002 24088 24145-24146 24153 24159 24226 24326-24327 24339-24340 24364 24372 24380 24411 24424 24450 24453 24455 24467 24478-24479 24482 24512 24527 24551-24552 28713 28717 28779 28806 28808 28812 28819 28831 28853 28875 28893 28916 28918 28991 29032 29042 29081 29089-29091 29095 29102 29104 29106 29110 29115 29126 29159-29160 29166 29216 29249 29456 29468 29510-29511 29519 29521 29523 29526 29533 29665 29772 29875 29897 30108 30128 30211 30219 30222-30223 30235 30243-30245 30256 30258 30260 30265 30270 30307 30311 30313 30321-30322 30327 30331 30333 30401 30438 30452 30504 30564 30580 30608-30609 30641 30652 30659 30688 30690 30692 30695 30702 30707 30713 30717 30719 32012 32064 32074 32081 32087 33804 37203 37205 37223 37235 37245 37247 37273 37303 37329-37330 37336 37339-37340 37342-37343 37357 37359 37362-37364 37366 37373 37674 37706 37711 37713 37717 37721 37723 37725 37729 37734 37736-37737 37739 37741 37745-37748 37752 37755 37757 37791 37813 37821 37828-37829 37852 37856 37866-37867 37869-37870 37888 37892-37893 37895 37897 37902-37904 37906 37917 37923 37925-37927 37932 37934 37936 37938-37939 37944 37963 38016-38018 38020 38022-38024 38026 38029 38040 38049 38403 38417 38435 38627 39125 39189 39191 39196 39199 39216-39217 39221 39232 39239 39243-39246 39248 39263 39269 39273 39283 39289 39316-39317 39321 39326 39348 39353 39368-39369 39374 39381-39382 39390 39392 39405-39406 39410 39417 39419 39697 39704 39743 39748-39749 39753-39754 39759 39766 39771 39773 39782 39784 39790 39794 39796 39799 39805 39871 39883 39889 39891-39892 39894 39896 39903 39908 39920 39926 39929 39933 39935 39977 40448 40450 40488 40491 40494 40576 40580 40608-40609 40613 40619 40634 41375 41383 41385 41419 41461 41556 41594-41595 41599 41605 41608 41631 41651 41654-41655 41661 41667 41673-41675 41681 41689 41697-41698 41713 41716 41721-41722 41733 41737 41759 41761-41763 41765 41768-41769 41780 41794 41810 41812-41813 41823 41833 41842 41858 41860 41862 42097 42153 42155-42156 42159 42166 42170-42171 42173 42185 42202 42224 42227 42229 42297 42352 42378-42379 42381 42385 42404 42441 42444-42445 42453 42496 42500 42820 43009 43011-43013 43017 43019 43021-43023 43028 43040-43041 43044 43047 43056-43057 43060 43064 437227.952274030004205e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/681/A65?format=asciiOpticaldefaultJ/A+A/681/A65/table1Photometric, astrometric, and spectroscopic data for the DCEP used in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3GaiaDR3 idmeta.idRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainModeMode of pulsationsrc.classcharplxOriginal parallax valuemaspos.parallax.trigdoublee_plxError of the parallax valuemasstat.error;pos.parallaxdoubleplxcorrParallax correction according to Lindegren et al., 2021A&A...649A...4Lmasarith.factordoubleRUWERUWE value from Gaia DR3stat.errorfloatfv2Fidelity_v2 index from Rybizki et al., 2022MNRAS.510.2597Rmeta.codedoublePeriodPeriod of pulsationdtime.perioddoubleE(B-V)Colour excess E(B-V)magphot.color.excessdoublee_E(B-V)Error of E(B-V)magstat.errordoubleGmagG magnitudemagphot.mag;em.optdoublee_GmagError of G magnitudemagstat.error;phot.magdoubleBPmagGbp magnitudemagphot.mag;em.opt.Bdoublee_BPmagError of Gbp magnitudemagstat.error;phot.magdoubleRPmagGrp magnitudemagphot.mag;em.opt.Rdoublee_RPmagError of Grp magnitudemagstat.error;phot.magdoubleVmagV magnitudemagphot.mag;em.opt.Vdoublee_VmagError of V magnitudemagstat.error;phot.magdoubleImagI magnitudemagphot.mag;em.opt.Idoublee_ImagError of I magnitudemagstat.error;phot.magdoubleJmagJ magnitudemagphot.mag;em.IR.Jdoublee_JmagError of J magnitudemagstat.error;phot.magdoubleHmagH magnitudemagphot.mag;em.IR.Hdoublee_Hmag? Error of H magnitudemagstat.error;phot.magdoublenullableKmagK magnitudemagphot.mag;em.IR.Kdoublee_Kmag? Error of K magnitudemagstat.error;phot.magdoublenullable[Fe/H]Iron abundancephys.abund.Fefloate_[Fe/H]Error of [Fe/H]stat.error;phys.abund.Fefloatr_E(B-V)Source for the values of E(B-V) (1)meta.ref;pos.framecharr_VmagSource for the V magnitudemeta.ref;pos.framecharr_ImagSource for the I magnitudemeta.ref;pos.framecharf_[Fe/H][0/2] Flag for the provenance of [Fe/H] (2)meta.codeintNameNamemeta.id;meta.maincharr_[Fe/H]Literature source of the iron abundance (1)meta.refcharSimbadNameSimbad column added by the CDSmeta.idcharnullable