...stars

Based on observations made with the William Herschel Telescope operated on the island of La Palma by the Isaac Newton Group at the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofısica de Canarias.

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...stars

Figure 1 and Tables 1 to 5 are only available in electronic form, and Table 6 is also available in electronic form.

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...stars

The spectra of the stars listed in Table 6 (click here) are also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

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...IRAF

IRAF is distributed by the National Optical Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation.

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