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A type stars - physical parameters from UVBY and H-beta photometry
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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.
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FIGUERAS SIÑOL, Francesca, TORRA ROCA, Jorge, JORDI I NEBOT, Carme. A type stars - physical parameters from UVBY and H-beta photometry. _Astronomy and Astrophysics Supplement Series_. 1991. Vol. 87, núm. 2, pàgs. 319-334. [consulta: 21 de gener de 2026]. ISSN: 0365-0138. [Disponible a: https://hdl.handle.net/2445/9188]