Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-09-10
Mon.Not.Roy.Astron.Soc. 326 (2001) 981
Astronomy and Astrophysics
Astrophysics
16 pages, 5 figures, LaTeX. For associated tables see http://www.ucm.es/info/Astrof/ellipt/CATRIPLET.html or http://www.nott
Scientific paper
10.1046/j.1365-8711.2001.04689.x
We present an homogeneous set of stellar atmospheric parameters (Teff, log g, [Fe/H]) for a sample of about 700 field and cluster stars which constitute a new stellar library in the near-infrared developed for stellar population synthesis in this spectral region (8350-9020 Angstrom). Having compiled the available atmospheric data in the literature for field stars, we have found systematic deviations between the atmospheric parameters from different bibliographic references. The Soubiran, Katz & Cayrel (1998) sample of stars with very well determined fundamental parameters has been taken as our standard reference system, and other papers have been calibrated and bootstrapped against it. The obtained transformations are provided in this paper. Once most of the datasets were on the same system, final parameters were derived by performing error weighted means. Atmospheric parameters for cluster stars have also been revised and updated according to recent metallicity scales and colour-temperature relations.
Cardiel Nicolas
Cenarro Andrés-Javier
Gorgas Javier
Pedraz Santos
Peletier Reynier F.
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