Astron. Astrophys. Suppl. Ser.
Volume 139, Number 3, November I 1999
|Page(s)||433 - 460|
|Published online||15 November 1999|
Departamento de Fisica, Universidade Federal do Rio Grande do Norte, Campus Universitario, 59072–970 Natal R.N., Brazil
2 Observatoire de Genève, CH–1290 Sauverny, Switzerland
Send offprint request to: J.R. de Medeiros
Accepted: 27 May 1999
Rotational and radial velocities have been measured for about 2000 evolved stars of luminosity classes IV, III, II and Ib covering the spectral region F, G and K. The survey was carried out with the CORAVEL spectrometer. The precision for the radial velocities is better than 0.30 km s-1, whereas for the rotational velocity measurements the uncertainties are typically 1.0 km s-1 for subgiants and giants and 2.0 km s-1 for class II giants and Ib supergiants. These data will add constraints to studies of the rotational behaviour of evolved stars as well as solid informations concerning the presence of external rotational brakes, tidal interactions in evolved binary systems and on the link between rotation, chemical abundance and stellar activity. In this paper we present the rotational velocity and the mean radial velocity for the stars of luminosity classes IV, III and II.
Key words: stars: rotation; late-type; kinematics / techniques: radial velocities / catalogs
Based on observations collected at the Haute–Provence Observatory, Saint–Michel, France and at the European Southern Observatory, La Silla, Chile.
Table 5 also available in electronic form at CDS via anonymous ftp to cdsarc.u-strasbg.fr (18.104.22.168) or via http://cdsweb.u-strasbg.fr/Abstract.html
© European Southern Observatory (ESO), 1999