J/A+A/310/879ivo://CDS.VizieR/J/A+A/310/879doi:10.26093/cds/vizier.33100879CDSBarrado y Navascues D.Stauffer J.R.1997-12-09T16:42:32Z1997-12-09T17:42:28ZCDS support team

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

cds-question@unistra.frvisible-astronomyWide-band photometryWe have derived accurate and homogeneous lithium abundances in 49 Main Sequence binary systems belonging to the Hyades open cluster by using a deconvolution method to determine individual magnitudes and colors for the primary and secondary components of the binary. The input parameters of the model are the observed Li equivalent width, the actual distance to the binary, the integrated apparent magnitude and the integrated colors of the binaries -BV(RI)_K_. We show that the general behavior is the same in binaries and in single stars (Li is depleted faster in K stars than in G stars and there is a deep dip for mid-F stars). However, there is a larger scatter in the abundances of binary systems than in single stars. Moreover, in general, binary systems have an overabundance, which is more conspicuous in close binaries. In fact, there is a cut-off period, which can be estimated as P_orb_~9d. This value is in excellent agreement with the theoretical prediction of Zahn (1994).1996A&A...310..879Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/310/879CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/310/879https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/310/879http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/310/879https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/310/879https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/310/879http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/310/879GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/310/879/table1*Deconvolution for the Hyades binariesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (1)meta.id;meta.maincharn_Name? Note on the star (2)meta.noteintB-VobsObserved system B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatl_B-V1[~] Flag on B-V1meta.code.errorcharB-V1? (B-V) colour index of the primary componentmagphot.color;em.opt.B;em.opt.VfloatB-V2? (B-V) colour index of the secondary componentmagphot.color;em.opt.B;em.opt.VfloatDistDistancepcpos.distancefloatu_DistUncertainty flag on distancemeta.code.errorcharn_DistNote on distance (3)meta.notecharMVmagObserved absolute V magnitudemagphys.magAbs;em.optfloatn_MVmagNote on MVmag (3)meta.notecharMVmag1? Absolute V magnitude of the primarymagphys.magAbs;em.optfloatMVmag2? Absolute V magnitude of the secondarymagphys.magAbs;em.optfloatVmagApparent V magnitudemagphot.mag;em.opt.VfloatSpSpectral type of the binarysrc.spTypecharSp1Spectral type of the primary componentsrc.spTypecharSp2Spectral type of the secondary componentsrc.spTypecharBinBinarity typesrc.classchar