Secondary standard stars for UVBY beta CCD photometry

Astronomy and Astrophysics – Astronomy

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Stromgren Photometry, Astronomical Data Bases: Miscellaneous, Stars: Fundamental Parameters, Stars: General

Scientific paper

Accurate standard uvby indices are presented for 73 southern B, A, F and G stars in the $V$ magnitude range 8.2 to 10.9. They cover all three transformation regions of the $uvby$ system (Olsen \cite[1983]{Olsen1}) well. Standard $\beta$ indices are included for the 55 B, A, and F stars in the sample. Our results provide a useful set of secondary standards for uvby beta CCD photometry with southern hemisphere 1-2 m class telescopes. A critical comparison with published photometry, in general based on fewer observations, is given. Based on observations made at the European Southern Observatory, La Silla, Chile. Tables 3, 4, 5 are also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

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