EDP Sciences
Free access
Volume 433, Number 2, April II 2005
Page(s) 659 - 669
Section Stellar atmospheres
DOI http://dx.doi.org/10.1051/0004-6361:20040396

A&A 433, 659-669 (2005)
DOI: 10.1051/0004-6361:20040396

Metallicities of the $\beta$ Cephei stars from low-resolution ultraviolet spectra

E. Niemczura and J. Daszynska-Daszkiewicz

Astronomical Institute, Wroclaw University, ul. Kopernika 11, 51-622 Wroclaw, Poland
    e-mail: eniem@astro.uni.wroc.pl

(Received 5 March 2004 / Accepted 22 November 2004 )

We derive basic stellar parameters (angular diameters, effective temperatures, metallicities) and interstellar reddening for all $\beta$ Cephei stars observed during the IUE satellite mission, including those belonging to three open clusters. The parameters are derived by means of an algorithmic procedure of fitting theoretical flux distributions to the low-resolution IUE spectra and ground-based spectrophotometric observations. Since the metallicity has a special importance for pulsating B-type stars, we focus our attention in particular on this parameter.

Key words: stars: early-type -- stars: abundances -- stars: variables: general

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