New calibration of the Vilnius photometric system. I - Effective temperatures and gravities of B-type stars

Details New calibration of the Vilnius photometric system. I - Effective temperatures and gravities of B-type stars New calibration of the Vilnius photometric system. I - Effective temperatures and gravities of B-type stars

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993balta...2..326s&link_type=abstract

Baltic Astronomy, vol. 2, p. 326

Astronomy and Astrophysics

Astronomy

2

B Stars, Stellar Temperature, Stellar Spectra, Calibrating, Stellar Gravitation, Supergiant Stars, Astronomical Photometry, A Stars, Stellar Atmospheres, Atmospheric Models

Scientific paper

Color indices and reddening-free Q-parameters in the Vilnius photometric system of B-type stars of all luminosities and A-supergiants are calibrated in terms of effective temperature and surface gravity, using synthetic spectra of the newest Kurucz model atmospheres. The calibration is verified by comparing the photometrically determined effective temperatures and surface gravities with the most accurate spectroscopic data. Satisfactory agreement has been found, proving the accuracy of the calibration within +/- 0.02 to +/- 0.05 dex in log Te and +/- 0.2 to +/- 0.3 dex in log g.

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