EDP Sciences
Free Access
Volume 369, Number 3, April III 2001
Page(s) 1048 - 1057
Section Stellar atmospheres
DOI https://doi.org/10.1051/0004-6361:20010163

A&A 369, 1048-1057 (2001)
DOI: 10.1051/0004-6361:20010163

A database of high and medium-resolution stellar spectra

Ph. Prugniel1 and C. Soubiran2

1  CRAL-Observatoire de Lyon, CNRS UMR 142, 69561 Saint-Genis Laval, France
2  Observatoire de Bordeaux, CNRS UMR 5804, BP 89, 33270 Floirac, France

(Received 27 November 2000 / Accepted 26 January 2001 )

We present a database of 908 spectra of 709 stars obtained with the ELODIE spectrograph at the Observatoire de Haute-Provence. 52 orders of the echelle spectra have been carefully fitted together to provide continuous, high-resolution spectra in the wavelength range $\lambda\lambda = 410{-}680$ nm. The archive provides a large coverage of the space of atmospheric parameters: $T_{\rm eff}$ from 3700 K to 13 600 K, $\log g$ from 0.03 to 5.86 and [Fe/H] from -2.8 to +0.7. At the nominal resolution, R=42 000, the mean signal-to-noise ratio is 150 per pixel. The spectra given at this resolution are normalized to their pseudo-continuum and are intended to serve for abundance studies, spectral classification and tests of stellar atmosphere models. A lower resolution version of the archive, at R=10 000, is calibrated in physical flux with a broad-band photometric precision of 2.5% and narrow-band precision of 0.5% . It is well suited to stellar population synthesis of galaxies and clusters, and to kinematical investigations of stellar systems. The archive is distributed in FITS format through the HYPERCAT and CDS databases.

Key words: atlases -- stars: abundances -- stars: atmospheres -- stars: fundamental parameters -- galaxy: stellar content

Offprint request: Ph. Prugniel, prugniel@obs.univ-lyon1.fr

Tables at the CDS

© ESO 2001