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Fig. 4.


Abundances of Na and Mg of our programme stars (symbols defined in Fig. 2) along with Arcturus (green star), compared with thin disc stars (red dots; Bensby et al. 2005; Reddy et al. 2003). Thick disc stars (red triangles; Bensby et al. 2005; Reddy et al. 2006) are also shown for comparison.

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