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|A type stars - physical parameters from UVBY and H-beta photometry
|Figueras Siñol, Francesca
Torra Roca, Jorge
Jordi i Nebot, Carme
Luminosities of stars
Temperature of stars
|uvby H-beta photometry has been obtained for a sample of 93 selected main sequence A stars. The purpose was to determine accurate effective temperatures, surface gravities, and absolute magnitudes for an individual determination of ages and parallaxes, which have to be included in a more extensive work analyzing the kinematic properties of A V stars. Several calibrations and methods to determine the above mentioned parameters have been reviewed, allowing the design of a new algorithm for their determination. The results obtained using this procedure were tested in a previous paper using uvby H-beta data from the Hauck and Mermilliod catalogue, and comparing the rusulting temperatures, surface gravities and absolute magnitudes with empirical determinations of these parameters.
|Reproducció digital del document publicat en format paper, proporcionada per NASA Astrophysics Data System http://adsabs.harvard.edu/
|It is part of:
|Astronomy and Astrophysics Supplement Series, 1991, vol. 87, núm. 2, p. 319-334.
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|Articles publicats en revistes (Física Quàntica i Astrofísica)
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