CHEMICAL ANALYSIS OF ASYMPTOTIC GIANT BRANCH STARS IN M62

@article{Lapenna2015CHEMICALAO,
  title={CHEMICAL ANALYSIS OF ASYMPTOTIC GIANT BRANCH STARS IN M62},
  author={Emilio Lapenna and Alessio Mucciarelli and Francesco R. Ferraro and Livia Origlia and Barbara Lanzoni and Davide Massari and Emanuele Dalessandro},
  journal={The Astrophysical Journal},
  year={2015},
  volume={813}
}
We have collected UVES-FLAMES high-resolution spectra for a sample of 6 asymptotic giant branch (AGB) and 13 red giant branch (RGB) stars in the Galactic globular cluster (GC) M62 (NGC 6266). Here we present the detailed abundance analysis of iron, titanium, and light elements (O, Na, Mg, and Al). For the majority (five out of six) of the AGB targets, we find that the abundances of both iron and titanium determined from neutral lines are significantly underestimated with respect to those… 

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