A Detailed Study of Giants and Horizontal Branch Stars in M68: Atmospheric Parameters and Chemical Abundances

13 May 2015 Schaeuble Marc Preston George Sneden Chris Thompson I. B. Shectman S. A. Burley G. S.

In this paper, we present a detailed high-resolution spectroscopic study of post main sequence stars in the Globular Cluster M68. Our sample, which covers a range of 4000 K in $T_{eff}$, and 3.5 dex in $log(g)$, is comprised of members from the red giant, red horizontal, and blue horizontal branch, making this the first high-resolution globular cluster study covering such a large evolutionary and parameter space... (read more)

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  • SOLAR AND STELLAR ASTROPHYSICS