J/AJ/109/1379ivo://CDS.VizieR/J/AJ/109/1379doi:10.26093/cds/vizier.51091379CDSAllen L.E.Strom K.M.2023-04-06T16:50:10Z2017-02-07T10:21:34ZCDS support team

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

cds-question@unistra.fropen-star-clustersmorgan-keenan-classificationphotometryWe present a grid of stellar classification spectra of moderate resolution (R~1500) in the range lambda lambda 5600-9000A, compiled from high signal-to-noise spectra of 275 stars, most in the open clusters Praesepe and M 67. The grid covers dwarfs from types B8 through M5, giants from G8 through M7, and subgiants from F5 through K0. We catalog atomic and molecular absorption features useful for stellar classification, and demonstrate the use of luminosity-sensitive features to distinguish between late-type dwarf and giant stars.1995AJ....109.1379Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/109/1379CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/109/1379https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/109/1379http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/109/1379https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/109/1379https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/109/1379http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/109/1379GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/109/1379/table1 (Spectral standards in Praesepe)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/109/1379/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/109/1379/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/109/1379/table1?GETtext/xml+votable180.050000true129.09486819.1913680.005555555555555556Cone search capability for table J/AJ/109/1379/table2 (Spectral standards in M 67)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/109/1379/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/109/1379/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/109/1379/table2?GETtext/xml+votable180.050000true132.59104411.6819960.005555555555555556Cone search capability for table J/AJ/109/1379/table3 (Additional giants)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/109/1379/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/109/1379/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/109/1379/table3?GETtext/xml+votable180.050000true264.98947656.8713010.0055555555555555566/2282 4255 4298 4687 4696 4698-4699 4709 4720-4721 10099 10416 10916 11874 14259 19879 24800 25708 25805 26345 27078 27457 27694 28364 44728https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/109/1379?format=asciiOpticaldefaultJ/AJ/109/1379/table1Spectral standards in PraeseperecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number (1)meta.id;meta.mainintn_ID[*] * when spectrum plotted (2)meta.notecharRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainSpAdopted spectral typesrc.spTypecharVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V color indexmagphot.color;em.opt.B;em.opt.VfloatnullableV-I? V-I color indexmagphot.color;em.opt.V;em.opt.IfloatnullableProbProbability of membership (3)%statintr_Vmag[0/2] BVI photometry reference (4)meta.ref;pos.frameintNotesNotes (5)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/109/1379/table2Spectral standards in M 67recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification number (1)meta.id;meta.mainintn_ID[*] * when spectrum plotted (2)meta.notecharRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainSpAdopted spectral typesrc.spTypecharVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V color indexmagphot.color;em.opt.B;em.opt.VfloatnullableV-I? V-I color indexmagphot.color;em.opt.V;em.opt.IfloatnullableProbProbability of membership (3)%statintr_Vmag[0/2] BVI photometry reference (4)meta.ref;pos.frameintNotesNotes (5)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/109/1379/table3Additional giantsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharn_Name[*] * when spectrum plotted in Figure 3meta.notecharRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainSpSpectral typesrc.spTypecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexedJ/AJ/109/1379/table4Spectral featuresrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLambdaWavelength0.1nmem.wlintIdentIdentificationmeta.id;meta.maincharNotesNotesmeta.notecharRefReferences (1)meta.refcharn_Lambda[-,] Separator, '-' for intervalmeta.notecharLambda2? Second wavelength0.1nmem.wlintnullablen_Lambda2[,] Separatormeta.notecharLambda3? Third wavelength0.1nmem.wlintnullable