J/A+AS/122/51ivo://CDS.VizieR/J/A+AS/122/51CDSKunzli M.North P.Kurucz R.L.Nicolet B.1999-03-01T16:14:15Z1999-03-01T17:14:02ZCDS support team

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

cds-question@unistra.frvisible-astronomynarrow-band-photometryastronomical-modelsstellar-atmospheresWe have used recent Kurucz models and many standard stars to revise previous calibrations of the Geneva photometric parameters in terms of Teff, logg, and [M/H]. In addition, new parameters pT and pG were defined, which are the Geneva equivalents of Stromgren's a and r parameters and allow to estimate Teff and logg for stars with intermediate temperature (spectral type A0-A3). A fortran code (calib.f) has been written, which applies our calibration to stars measured in the Geneva system. A conspicuous change in slope appears in the grid d vs B2-V1. It seems to be linked with the onset of convection in the superficial layers of the star's envelope.1997A&AS..122...51Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/122/51CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/122/51https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/122/51http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/122/51https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/122/51https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/122/51http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/122/51GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+AS/122/51/kurgenThe Geneva colours (uncorrected) of the Kurucz modelsTeffEffective temperatureKphys.temperature.effectivefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloat[M/H]Metallicitylog(Sun)phys.abundfloat[U-B]Geneva [U-B] indexmagphot.colorfloat[V-B]Geneva [V-B] indexmagphot.colorfloat[B1-B]Geneva [B1-B] indexmagphot.colorfloat[B2-B]Geneva [B2-B] indexmagphot.colorfloat[V1-B]Geneva [V1-B] indexmagphot.colorfloat[G-B]Geneva [G-B] indexmagphot.colorfloat