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Astron. Astrophys. 348, 825-830 (1999)

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Identification of [FORMULA] Bootis stars using IUE spectra

II. High resolution data

E. Solano 1 and E. Paunzen 2

1 INSA-LAEFF, P.O. Box 50727, E-28080 Madrid, Spain (esm@vilspa.esa.es)
2 Institut für Astronomie der Universität Wien, Türkenschanzstrasse 17, A-1180 Wien, Austria (Ernst.Paunzen@univie.ac.at)

Received 15 March 1999 / Accepted 28 June 1999

Abstract

Stars included in the catalogue of [FORMULA] Bootis stars by Paunzen et al. (1997) with high resolution spectra (FWHM: 0.10-0.25 Å) in the INES Archive of the International Ultraviolet Explorer satellite (IUE) are analyzed here in order to establish membership criteria for the [FORMULA] Bootis group. Line-ratios of carbon to heavier elements (Si, Al, Ca) were adopted as criteria in the SWP range (1150-1980 Å). For the LWP range (1850-3350 Å), the intensity of metallic lines (Fe and Mg) was used. These criteria, together with those derived for low resolution spectra, make the IUE Final Archive a powerful tool to find new [FORMULA] Bootis candidates.

Key words: stars: chemically peculiar – stars: early-type – ultraviolet: stars

Send offprint requests to: E. Solano (esm@vilspa.esa.es)

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© European Southern Observatory (ESO) 1999

Online publication: August 13, 199
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