J/MNRAS/499/1312ivo://CDS.VizieR/J/MNRAS/499/1312doi:10.26093/cds/vizier.74991312CDSKnudstrup E.Grundahl F.Brogaard K.Slumstrup D.Orosz J.A.,Sandquist E.L.Jessen-Hansen J.Lund M.N.Arentoft T.Tronsgaard R.,Yong D.Frandsen S.Bruntt H.2024-08-21T20:16:17Z2023-11-07T09:06:39ZCDS support team

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

cds-question@unistra.fropen-star-clustersastrometryvisible-astronomymedium-band-photometryradial-velocityAccurate stellar parameters of stars in open clusters can help constrain models of stellar structure and evolution. Here, we wish to determine the age and metallicity content of the open cluster NGC 2506. To this end, we investigated three detached eclipsing binaries (DEBs; V2032, V4, and V5) for which we determined their masses and radii, as well as four red giant branch stars for which we determined their effective temperatures, surface gravities, and metallicities. Three of the stars in the DEBs have masses close to the cluster turn-off mass, allowing for extremely precise age determination. Comparing the values for the masses and radii of the binaries to BaSTI (a Bag of Stellar Tracks and Isochrones) isochrones, we estimated a cluster age of 2.01+/-0.10Gyr. This does depend on the models used in the comparison, where we have found that the inclusion of convective core-overshooting is necessary to properly model the cluster. From red giant branch stars, we determined values for the effective temperatures, the surface gravities, and the metallicities. From these we find a cluster metallicity of -0.36+/-0.10dex. Using this value and the values for the effective temperatures, we determine the reddening to be E(b-y)=0.057+/-0.004mag. Furthermore, we derived the distance to the cluster from Gaia parallaxes and found 3.101+/-0.017kpc, and we have performed a radial velocity membership determination for stars in the field of the cluster. Finally, we report on the detection of oscillation signals in {gamma} Dor and {delta} Scuti members in data from the Transiting Exoplanet Survey Satellite (TESS) mission, including the possible detection of solar-like oscillations in two of the red giants.2020MNRAS.499.1312Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/499/1312CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/152/192 : WOCS. LXXII. A uvbyCaHb study of NGC 2506J/A+A/633/A99 : Gaia DR2 open clusters in the Milky Way. IIJ/AJ/155/138 : WOCS.LXXVI.Velocity & abundances in NGC2506https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/499/1312https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/499/1312http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/499/1312https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/499/1312https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/499/1312http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/499/1312GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/499/1312/tablea2 (Table containing the results of our spectroscopic membership determination in Section 3.1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/499/1312/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/499/1312/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/499/1312/tablea2?GETtext/xml+votable180.050000true120.0375-10.7948330.0055555555555555566/21586https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/499/1312?format=asciiOpticaldefaultJ/MNRAS/499/1312/tablea2Table containing the results of our spectroscopic membership determination in Section 3.1SimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (1)meta.id;meta.maincharf_Name[X] Flag on Name (2)meta.codecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainumagStromgren u-band magnitudemagphot.mag;em.opt.Ufloate_umagError on umagmagstat.error;phot.magfloatvmagStromgren v-band magnitudemagphot.mag;em.opt.Bfloate_vmagError on vmagmagstat.error;phot.magfloatbmagStromgren b-band magnitudemagphot.mag;em.opt.Bfloate_bmagError on bmagmagstat.error;phot.magfloatymagStromgren y-band magnitudemagphot.mag;em.opt.Vfloate_ymagError on ymagmagstat.error;phot.magfloatRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVError on RVkm/sstat.errorfloats_RVGaussian {sigma} from the fit to the cross-correlation function (CCF)km/sstat.stdevfloatVar[0/1] Indicates if the star is a variable (1:yes, 0:no)meta.codeintMem[0/1] Indicates if the star is a member (1:yes, 0:no)meta.noteintPmemMembership probability derived by Cantat-Gaudin & Anders (2020A&A...633A..99C, Cat. J/A+A/633/A99)stat.probabilityfloatClassMembership class determined in Anthony-Twarog et al. (2018AJ....155..138A, Cat. J/AJ/155/138) (3)src.classchar