VizieR Online Data Catalog: B to G stars calibration in Geneva photometry (Kunzli+, 1997)
Abstract
We 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. (1 data file).
- Publication:
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VizieR Online Data Catalog
- Pub Date:
- August 1996
- Bibcode:
- 1996yCat..41220051K
- Keywords:
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- Photometry: Geneva;
- Models: atmosphere