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dc.contributor.authorFigueras Siñol, Francescacat
dc.contributor.authorTorra Roca, Jorgecat
dc.contributor.authorJordi i Nebot, Carmecat
dc.description.abstractuvby 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.eng
dc.publisherEDP Sciencescat
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per NASA Astrophysics Data System
dc.relation.ispartofAstronomy and Astrophysics Supplement Series, 1991, vol. 87, núm. 2, p.
dc.rights(c) The European Southern Observatory, 1991cat
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationFotometria astronòmicacat
dc.subject.otherLuminosities of starseng
dc.subject.otherTemperature of starseng
dc.titleA type stars - physical parameters from UVBY and H-beta photometryeng
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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