Fig. 2
[Mg/Fe] and [Ca/Fe] as a function of [Fe/H]. The Sextans stars measured in this study are shown by diamonds with error bars, while previously studied Sextans stars ([Fe/H] < − 2.5) are depicted as circles (Aoki et al. 2009a; Honda et al. 2011; Kirby et al. 2010). The abundances of Galactic halo stars are shown by asterisks taken from the SAGA database (Suda et al. 2008).
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