B6-B9.5 stars abundance analysis (Niemczura+, 2009)

Details B6-B9.5 stars abundance analysis (Niemczura+, 2009) B6-B9.5 stars abundance analysis (Niemczura+, 2009)

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ycat..35060213n&link_type=abstract

VizieR On-line Data Catalog: J/A+A/506/213. Originally published in: 2009A&A...506..213N

Physics

Stars: Early-Type, Stars: B-Type, Abundances, Rotational Velocities

Scientific paper

The observational material consists of the high-resolution (R~40000-50000) spectroscopic observations of B-type stars obtained with the ELODIE and FEROS spectrographs. The ELODIE spectrograph was attached to the 1.93m telescope at the Observatoire de Haute-Provence, France. The FEROS spectrograph was installed on the 1.52m and 2.2m telescopes at La Silla, Chile. Both instruments are cross-dispersed, fibre-fed echelle spectrographs. Typical signal-to-noise ratios of the spectra range from 100 to 150 at 550nm. The wavelength intervals covered are 390-680nm and 380-910nm for ELODIE and FEROS, respectively. In our initial sample, we have 160 FEROS spectra and 62 ELODIE spectra of B-type stars. Only the spectroscopic observations of the B6-B9.5 stars available in the GAUDI archive are analysed in this paper. We also excluded Be stars, supergiants and spectroscopic binaries for which the lines of two stars were visible in the spectra. Basic information about the analysed stars, including spectral type, name of the spectrograph, observation date in UT, V magnitude, interstellar reddening, indications of binarity, and abundance determinations in the literature are given in Table 1.
(4 data files).

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