J/MNRAS/500/5009ivo://CDS.VizieR/J/MNRAS/500/5009CDSMarconi M.Molinaro R.Ripepi V.Leccia S.Musella I.De Somma G.,Gatto M.Moretti M.I.2023-11-14T07:11:09Z2023-11-14T08:08:24ZCDS support team

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

cds-question@unistra.frvariable-starsmetallicitychemically-peculiar-starseffective-temperaturevisible-astronomytrigonometric-parallaxastronomical-modelsOn the basis of an extended set of non-linear convective RR Lyrae pulsation models we derive the first theoretical light curves in the Gaia bands G, G_BP_, and G_RP_ and the corresponding intensity-weighted mean magnitudes and pulsation amplitudes. The effects of chemical composition on the derived Bailey diagrams in the Gaia filters are discussed for both Fundamental and first overtone mode pulsators. The inferred mean magnitudes and colours are used to derive the first theoretical Period-Wesenheit relations for RR Lyrae in the Gaia filters. The application of the theoretical Period-Wesenheit relations for both the Fundamental and first overtone mode to Galactic RR Lyrae in the Gaia Data Release 2 data base and complementary information on individual metal abundances allows us to derive theoretical estimates of their individual parallaxes. These results are compared with the astrometric solutions to conclude that a very small offset, consistent with zero, is required in order to reconcile the predicted distances with Gaia results.2021MNRAS.500.5009Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/500/5009CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/500/5009https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/500/5009http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/500/5009https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/500/5009https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/500/5009http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/500/5009GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/500/5009/tablea1 (RR Lyrae stars used for the comparison with the models with metallicity from high resolution spectroscopy)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/500/5009/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/500/5009/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/500/5009/tablea1?GETtext/xml+votable180.050000true281.7251-54.655580.0055555555555555566/1663 2238 4762 6567 7174 7518 7900 8466 9138 9363 9509 9769 10541 10584 10602 10638 10898 11098 11961 11982 12512 12743 13171 13680 14581-14582 14730-14731 14734-14735 14746 14777 14782 14918 14925 14935 14939 14952-14953 14956 14960-14961 14967 14971 14994 15057 15119-15121 15136 15141 15148-15149 15156 15220 15281 15714 16018 16867 17158 17328 18177 19070 19256 21182 22952 24663 24724 24797 25060 25120 25199 25768 26281 26288 26981 27333 28155 30019 30769 30819 30923 31104 31547 31743 32254 32636 32663 32921 32958 32993 32997 33288 33385 33465 33467 34236 34537 35151 35423 35686 36966 38207 38233 38456 38485 40655 40767 40988 40998 41022 41067 41146 41260 41292 41355 41367 41987 42689 42700 43211 43217 43232 43407 44041 44145 44991 45119 45140-45141 45164 45206 45243 45260 45329 45337 45720 45748 45994 45998 46032 46069 46627 46640 46650 46686 46705 47104 47159 47253-47254 47342 47409 47413 47459 47475 47491 47568 48113 48154 48228 48715 48916 490491.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/500/5009?format=asciiOpticaldefaultJ/MNRAS/500/5009/table1Fundamental model parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZMetal abundancephys.abund.ZfloatYHeluim abundancephys.abundfloatPPredicted pulsation perioddtime.periodfloatMassMasssolMassphys.massfloatlogLLogarithm of the luminositylog(solLum)phys.luminosityfloatTeffEffective temperatureKphys.temperature.effectiveintBPmagInferred mean BP magnitudemagphot.mag;em.opt.BfloatAmpBPInferred pulsation amplitude in the BP-bandmagsrc.var.amplitudefloatGmagInferred mean G magnitudemagphot.mag;em.optfloatAmpGInferred pulsation amplitude in the G-bandmagsrc.var.amplitudefloatRPmagInferred mean RP magnitudemagphot.mag;em.opt.RfloatAmpRPInferred pulsation amplitude in the RP-bandmagsrc.var.amplitudefloatJ/MNRAS/500/5009/table2First overtone model parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZMetal abundancephys.abund.ZfloatYHeluim abundancephys.abundfloatPPredicted pulsation perioddtime.periodfloatMassMasssolMassphys.massfloatlogLLogarithm of the luminositylog(solLum)phys.luminosityfloatTeffEffective temperatureKphys.temperature.effectiveintBPmagInferred mean BP magnitudemagphot.mag;em.opt.BfloatAmpBPInferred pulsation amplitude in the BP-bandmagsrc.var.amplitudefloatGmagInferred mean G magnitudemagphot.mag;em.optfloatAmpGInferred pulsation amplitude in the G-bandmagsrc.var.amplitudefloatRPmagInferred mean RP magnitudemagphot.mag;em.opt.RfloatAmpRPInferred pulsation amplitude in the RP-bandmagsrc.var.amplitudefloatJ/MNRAS/500/5009/tablea1RR Lyrae stars used for the comparison with the models with metallicity from high resolution spectroscopyDEJ2000Declination (J2000)degpos.eq.dec;meta.mainSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameRR Lyrae namemeta.id;meta.maincharModeMode of pulsation (1)meta.code;src.varcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainplxGaia DR2 parallaxmaspos.parallax.trigfloate_plxError on plxmasstat.error;pos.parallaxfloatruweGaia DR2 renormalized unit-weight errorstat.errorfloatPPulsation perioddtime.perioddoubleGmagGaia DR2 G-band magnitudemagphot.mag;em.optfloatBPmag? Gaia DR2 BP-band magnitudemagphot.mag;em.opt.BfloatnullableRPmag? Gaia DR2 RP-band magnitudemagphot.mag;em.opt.RfloatnullablenNumber of averaged measures (2)meta.numberint[Fe/H]Iron abundancephys.abund.Fefloate_[Fe/H]Error on [Fe/H]stat.error;phys.abund.Fefloatr_[Fe/H]Reference for [Fe/H] (3)meta.refchar