J/A+AS/123/93ivo://CDS.VizieR/J/A+AS/123/93CDSPaunzen E.Weiss W.W.Heiter U.North P.2000-12-19T20:14:37Z2000-12-19T21:14:30ZCDS support team

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

cds-question@unistra.frpeculiar-variable-starsapparent-magnitudeThis paper describes the first steps towards the homogenization of the lambda Bootis group, leading to a concise definition of lambda Bootis stars: Population I, hydrogen burning, metal poor (except of C, N, O and S) A to F-type stars. The definition does not depend on phenomenological features, like flux depressions, colour excesses, vsini values, etc. Based on this new homogeneous catalogue with 45 lambda Bootis stars, we discuss classification criteria which can be used for a spectroscopic and photometric all-sky survey for lambda Bootis stars in the field and in clusters of different ages.1997A&AS..123...93Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/123/93CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/123/93https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/123/93http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/123/93https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/123/93https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/123/93http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/123/93GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/123/93/table1 (Catalogue of lambda Bootis stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/123/93/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/123/93/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/123/93/table1?GETtext/xml+votable180.050000true1.945417-22.5086110.0055555555555555566/5446 5781 5872 7504 9995 10695 10990 13001 13646 14640 16629 16703 19099 21399 22850 22861 23408 23785 24839 27735 28518 28994 29086 29428 30467 31284 32202 33469 34680 35104 37758 39263 40029 41613 42328 42618 43557 44499 45835 46979 47110 47520 47876 48299https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/123/93?format=asciiOpticaldefaultJ/A+AS/123/93/table1Catalogue of lambda Bootis starsDEJ2000Declination (J2000)pos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD numbermeta.id;meta.mainintSimbadask the SIMBAD data-base about this objectmeta.refcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainvsini? Rotational velocitykm/sphys.veloc.rotatintnullabler_vsiniReference on rotational velocity (1)meta.refcharVmag? V magnitudemagphot.mag;em.opt.VfloatnullableNote[*] * indicates combined magnitude for binarymeta.codecharCSReference on classification spectroscopy (2)meta.refcharHSReference on high resolution spectroscopy (2)meta.refcharUVReference on UV observations (2)meta.refcharVARReference on photometric survey (2)meta.code;src.varcharIR[*] IR observations availablemeta.codecharGeneva[*] Geneva colours availablemeta.codecharStroemgren[*] Stroemgren colours availablemeta.codecharRefAdditional references (2)meta.refchar