| Issue |
A&A
Volume 458, Number 3, November II 2006
|
|
|---|---|---|
| Page(s) | 895 - 898 | |
| Section | Stellar atmospheres | |
| DOI | https://doi.org/10.1051/0004-6361:20065642 | |
| Published online | 12 September 2006 | |
A catalog of rotational and radial velocities for evolved stars
IV. Metal-poor stars
1
Departamento de Física, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN, Brazil e-mail: renan@dfte.ufrn.br
2
Universidade Estadual do Rio Grande do Norte, Mossoró, RN, Brasil
3
Observatório Nacional, RJ, Brazil
4
European Southern Observatory, La Silla, Chile
5
Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
6
Observatoire de Genève, Chemin des Maillettes 51, 1290 Sauverny, Switzerland
Received:
19
May
2006
Accepted:
20
July
2006
Aims.The present paper describes the first results of an
observational program intended to refine and extend the
existing 
measurements of metal-poor stars, with an
emphasis on field evolved stars.
Methods.The survey was carried out with the FEROS and CORALIE spectrometers.
For the measurements, obtained from spectral synthesis, we
estimate an uncertainty of about 2.0 
.
Results.Precise rotational velocities 
are
presented for a large sample of 100 metal-poor stars, most
of them evolving off the main–sequence. For the large majority of
the stars composing the present sample, rotational
velocities have been measured for the first time.
Key words: catalogs / stars: evolution / stars: fundamental parameters / stars: Population II / stars: rotation / stars: statistics
© ESO, 2006
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