J/AJ/106/1080ivo://CDS.VizieR/J/AJ/106/1080doi:10.26093/cds/vizier.51061080CDSSODERBLOM D.R.FEDELE S.B.JONES B.F.STAUFFER J.R.PROSSER C.F.2023-04-06T16:50:03Z1997-12-09T20:04:15ZCDS support team

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

cds-question@unistra.fropen-star-clustersspectroscopyline-intensitieschemical-abundancesEchelle observations are presented of lithium in 63 F and G dwarfs of the Praesepe cluster. For stars earlier than about G0V, Praesepe follows the same trends seen in the Hyades, which has approximately the same age and composition. Stars in Praesepe later than about G5V have more Li than their Hyades counterparts, possibly because Praesepe is slightly younger than the Hyades or has slightly lower metallicity. Significant differences in the abundance of Li are seen among stars of the same color, and, as in the Hyades, there is a tendency for the deviant stars to be binaries to the extent that duplicity in Praesepe is known. There are also stars with much less Li than most cluster members yet which appear to be true members of Praesepe. The close binary KW 181 has a normal Li abundance, despite the fact that similar close binaries in the Hyades are Li rich.1993AJ....106.1080Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/106/1080CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/106/1080https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/106/1080http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/106/1080https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/106/1080https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/106/1080http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/106/1080GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/106/1080/table2Observations of lithium in Praesepe solar-type starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKWNumber in catalog of Klein-Wassink (1927)meta.id;meta.mainintVL[]? Number in catalog of Vanderlinden (1933)meta.idintSpSpectral type, where available, taken from Corbally & Garrison (1986), Corbally & Garrison (1983) or Wilson (1963), in order of preferencesrc.spTypecharB-VB-V color from Mendoza (1967)magphot.color;em.opt.B;em.opt.VfloatV-IJohnson (V-I) from Mendoza (1967)magphot.color;em.opt.V;em.opt.IfloatTeffEffective temperatureKphys.temperature.effectiveintl_WLiLimit flag on WLimeta.code.errorcharWLiEquivalent width of Li 6708nmspect.line.eqWidthfloatl_log(N(Li))Limit flag on N(Li)meta.code.errorcharlog(N(Li))Lithium abundance (scale log N(H) = 12)phys.abundfloat