A Chemical Abundance Study of three RHB and two RGB stars in NGC 6637 (M69)

Details A Chemical Abundance Study of three RHB and two RGB stars in NGC 6637 (M69) A Chemical Abundance Study of three RHB and two RGB stars in NGC 6637 (M69)

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..362..279l&link_type=abstract

The Seventh Pacific Rim Conference on Stellar Astrophysics, ASP Conference Series, Vol. 362, Proceedings of the conference held

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

We present a detailed chemical abundance study of three red horizontal branch and two red giant branch stars in the metal-rich globular cluster NGC 6637 (M69). The value of [Fe/H] derived from LTE calculations is -0.77 ± 0.02 dex. We also discuss the anticorrelation between oxygen and sodium abundances in the program stars and compare the [Si/Ti] ratio of NGC 6637 with those of other globular clusters.

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