A Globular Cluster Metallicity Scale Based on the Abundance of Feii
نویسندگان
چکیده
منابع مشابه
A New Globular Cluster Metallicity Scale Based on the Abundance of Fe II
When using Fe as a surrogate for " metallicity " , the metallicity is best represented by the dominant species of Fe. Accordingly, we have derived a new globular cluster metallicity scale based on the equivalent widths of Fe II lines measured from high resolution spectra of giant stars. The scale is primarily based on the results of analyses by the Lick-Texas group of 149 stars in 11 clusters, ...
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Assuming that in the atmospheres of low-mass, metal-poor red giant stars, onedimensional models based on local thermodynamic equilibrium accurately predict the abundance of iron from Fe ii, we derive a globular cluster metallicity scale based on the equivalent widths of Fe ii lines measured from high resolution spectra of giants in 16 key clusters lying in the abundance range –2.4 < [Fe/H]II < ...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 2003
ISSN: 0004-6280,1538-3873
DOI: 10.1086/345914