Bibcode
Allende Prieto, C.; Lambert, D. L.
Referencia bibliográfica
VizieR On-line Data Catalog: J/A+A/352/555. Originally published in: 1999A&A...352..555A
Fecha de publicación:
10
1999
Número de citas
3
Número de citas referidas
2
Descripción
The Hipparcos mission has made it possible to constrain the positions of
nearby field stars in the colour-magnitude diagram with very high
accuracy. These positions can be compared with the predictions of
stellar evolutionary calculations to provide information on the basic
parameters of the stars: masses, radii, effective temperatures, ages,
and chemical composition. The degeneracy between mass, age, and
metallicity is not so large as to prevent a reliable estimate of masses,
radii and effective temperatures, at least for stars of solar
metallicity. The evolutionary models of Bertelli et al. (1994, Cat.
) predict those parameters finely, and
furthermore, the applied transformation from the theoretical
log(g)-Teff to the observational Mv-B-V plane is
precise enough to derive radii with an uncertainty of ~6%, masses within
8%, and Teffs within ~2% for a certain range of the stellar parameters.
This is demonstrated by means of comparison with the measurements in
eclipsing binaries and the InfraRed Flux Method. The application of the
interpolation procedure in the theoretical isochrones to the stars
within 100pc from the Sun observed with Hipparcos provides estimates for
17,219 stars included in this Table. (1 data file).