ar X iv : 0 80 5 . 46 63 v 1 [ as tr o - ph ] 3 0 M ay 2 00 8 Chemical Abundances in 35 Metal - Poor Stars . I . Basic Data
نویسنده
چکیده
We carried out a homogeneous abundance study for various elements, including α-elements, iron peak elements and n-capture elements for 35 metal-poor stars with a wide metallicity range (−3.0 .[Fe/H]. −0.5). High-resolution (R ≃ 30k), high signal-to-noise(S/N ≥ 110) spectra with a wavelength range of 3800 to 10500 Åusing the Bohyunsan Optical Echelle Spectrograph (BOES). Equivalent widths were measured by means of the Gaussian-fitting method for numerous isolated weak lines of elements. Atmospheric parameters were determined by a self-consistent LTE analysis technique using Fe I and Fe II lines. In this study, we present the EWs of lines and atmospheric parameters for 35 metal-poor stars. Subject headings: stars: abundance stars: population II Galaxy: abundance Galaxy: evolution
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1 Dipartimento di Fisica, Via Marzolo 8, 35131 Padova, Italy [email protected] 2 Observatoire de Paris, Section de Meudon, F-92195 Meudon Principal Cedex, France [email protected] 3 Stockholm Observatory, Albanova Universitetcentrum, SE-10691 Stockholm, Sweden [email protected] 4 Planetary Science Institute, Tucson, Arizona [email protected] 5 Observatoire de la Côte d’Azur, Nice, F...
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