Matches in SemOpenAlex for { <https://semopenalex.org/work/W2110253451> ?p ?o ?g. }
- W2110253451 endingPage "169" @default.
- W2110253451 startingPage "143" @default.
- W2110253451 abstract "Assuming that in the atmospheres of low-mass, metal-poor red giant stars, one-dimensional 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 ! 0.7. We base the scale largely on the analysis of spectra of 149 giant stars in 11 clusters by the Lick-Texas group supplemented by high-resolution studies of giants in five other clusters. We also derive ab initio the true distance moduli for certain key clusters (M5, M3, M13, M92, and M15) as a means of setting stellar surface gravities. Allowances are made for changes in the abundance scale if one employs (1) Kurucz models with and without convective overshooting to represent giant star atmospheres in place of MARCS models and (2) the Houdashelt et al. color-temperature scale in place of the Alonso et al. scale. We find that (Fe/H)II is correlated linearly with , the reduced strength of the near-infrared Ca ii triplet defined � W" @default.
- W2110253451 created "2016-06-24" @default.
- W2110253451 creator A5027130261 @default.
- W2110253451 creator A5030183624 @default.
- W2110253451 date "2003-02-01" @default.
- W2110253451 modified "2023-10-13" @default.
- W2110253451 title "A Globular Cluster Metallicity Scale Based on the Abundance of Fe<scp>ii</scp>" @default.
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