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Lithium in the Old Open Cluster NGC 2243

Published online by Cambridge University Press:  25 May 2016

V. Hill  and
L. Pasquini
V. Hill
Affiliation:
ESO, Karl Schwarzschild Strasse 2, Garching bei München, D-85748, Germany
L. Pasquini
Affiliation:
ESO, Karl Schwarzschild Strasse 2, Garching bei München, D-85748, Germany

Abstract

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We report observations of lithium in a sample of 11 stars in the metal-poor open cluster NGC 2243, that were obtained from high-resolution spectroscopy at CASPEC (ESO 3.6m telescope). The targets are located at the turnoff region, plus one red giant star.

NGC 2243 is one of the most metal-poor open cluster, almost as deficient as 47 Tuc, but substantially younger (∼4 Gyrs and [Fe/H]=-0.5 dex), which makes it a very interesting case to compare with more metal rich coeval clusters on the one hand, and old metal-rich globular clusters (47 Tuc) on the other hand. The preliminary Lithium abundances obtained are discussed in this framework.

Type
4. Lithium Abundances
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 293 - 298
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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