EDP Sciences
Free access
Volume 404, Number 2, June III 2003
Page(s) 689 - 700
Section Formation and evolution of planetary systems
DOI http://dx.doi.org/10.1051/0004-6361:20030546

A&A 404, 689-700 (2003)
DOI: 10.1051/0004-6361:20030546

Metallicities of the SPB stars from the IUE ultraviolet spectra

E. Niemczura

Astronomical Institute of the Wroclaw University, ul. Kopernika 11, 51-622 Wroclaw, Poland
(Received 31 January 2003 / Accepted 8 April 2003 )

We derived the stellar parameters (angular diameters, effective temperatures, metallicities) and interstellar reddenings for 20 SPB and 34 reference stars observed during the IUE satellite mission. The parameters were derived by means of an algorithmic procedure of fitting theoretical flux distributions to the low-resolution IUE spectra and optical spectrophotometric observations. Since the metallicity [m/H] has a special importance for pulsating B type stars, we focused our attention on that parameter. We found that the mean value of the metallicity of the considered SPB and reference stars amounts to [m/H]  $\approx -0.20$. The results only slightly depend on the reduction procedure used for the IUE images (NEWSIPS and INES). The metal abundances obtained in this paper are in accordance with the average value of -0.2 dex for stars in the solar neighborhood recently reported by other investigators.

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

SIMBAD Objects
Tables at the CDS

© ESO 2003