Astron. Astrophys. Suppl. Ser.
Volume 137, Number 3, June II 1999
|Page(s)||451 - 456|
|Published online||15 June 1999|
IX. Measurements of 2800 B2-F5 stars for Hipparcos
Observatoire de Paris-Meudon, D.A.S.G.A.L., UMR 8633 du CNRS, F-92195 Meudon Cedex, France
2 Observatoire de Haute Provence, UPR 9049 du CNRS, F-04870 Saint Michel l'Observatoire, France
3 Institut d'Astrophysique de Paris, CNRS, 98bis Bd. Arago, F-75014 Paris, France
4 Observatoire de Marseille, F-13248 Marseille Cedex 04, France
5 Observatoire de Strasbourg, 11 rue de l'Université, F-67000 Strasbourg, France
6 Observatoire de Besançon, BP. 1615, F-25010 Besançon Cedex, France
Send offprint request to: M.-O. Baylac
Accepted: 1 April 1999
Radial velocities have been determined for a sample of 2930 B2-F5 stars, 95% observed by the Hipparcos satellite in the north hemisphere and 80% without reliable radial velocity up to now. Observations were obtained at the Observatoire de Haute Provence with a dispersion of 80 Å mm-1 with the aim of studying stellar and galactic dynamics. Radial velocities have been measured by correlation with templates of the same spectral class. The mean obtained precision is 3.0 km s-1 with three observations. A new MK spectral classification is estimated for all stars.
Key words: techniques: radial velocities / stars: early-type / stars: fundamental parameters
Based on observations made at the Haute Provence Observatory, France and on data from The Hipparcos Catalogue, ESA.
Tables 4, 5 and 6 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr or via http://cdsweb.u-strasbg.fr/Abstract.htm
© European Southern Observatory (ESO), 1999