J/MNRAS/386/1625ivo://CDS.VizieR/J/MNRAS/386/1625doi:10.26093/cds/vizier.73861625CDSCarraro G.Villanova S.Demarque P.Bidin C.M.McSwain M.V.2024-07-06T20:16:02Z2009-12-02T10:24:18ZCDS support team

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

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryradial-velocityproper-motionsWe report on a new, wide-field (20x20arcmin^2^), multicolour (UBVI), photometric campaign in the area of the nearby old open cluster NGC 2112. At the same time, we provide medium-resolution spectroscopy of 35 (and high-resolution of additional 5) red giant and turn-off stars. This material is analysed with the aim to update the fundamental parameters of this traditionally difficult cluster, which is very sparse and suffers from heavy field star contamination. Among the 40 stars with spectra, we identified 21 bona fide radial velocity members which allow us to put more solid constraints on the cluster's metal abundance, long suggested to be as low as the metallicity of globulars. As indicated earlier by us on a purely photometric basis, the cluster [Fe/H] abundance is slightly supersolar ([Fe/H]=0.16+/-0.03) and close to the Hyades value, as inferred from a detailed abundance analysis of three of the five stars with higher resolution spectra. Abundance ratios are also marginally supersolar. Based on this result, we revise the properties of NGC 2112 using stellar models from the Padova and Yale-Yonsei groups.2008MNRAS.386.1625Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/386/1625CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/386/1625https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/386/1625http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/386/1625https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/386/1625https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/386/1625http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/386/1625GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/386/1625/table3 (Basic properties of the stars for which we secured spectroscopic observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/386/1625/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/386/1625/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/386/1625/table3?GETtext/xml+votable180.050000true88.298750.3120560.0055555555555555566/22871https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/386/1625?format=asciiOpticalInfrareddefaultJ/MNRAS/386/1625/table3Basic properties of the stars for which we secured spectroscopic observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstInstrument used (1)instr.setupcharSeqSequential number, Cl* NGC 2112 CVD NNNN in Simbadmeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainUmag? Johnson U magnitudemagphot.mag;em.opt.UfloatnullableBmagJohnson B magnitudemagphot.mag;em.opt.BfloatVmag? Johnson V magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? rms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatnullableIcmag? Cousins I magnitudemagphot.mag;em.opt.IfloatnullableHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRVrms uncertainty on HRVkm/sstat.errorfloatpmRA? Proper motion along RA (pmRA*cosDE)mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA? rms uncertainty on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Proper motion along DEmas/yrpos.pm;pos.eq.decfloatnullablee_pmDE? rms uncertainty on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableMm[M NM] Membership according to radial velocitymeta.code.member;spect.dopplerVelocchar