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Fig. 4

image

A(Li) vs. dereddened VKs (legend as in Fig. 3). Binaries are separated from single stars by VKs0 = 1.08 and the Spite-plateau. The same sample is colour-coded by metallicity (bottom panel). Values for CD 48 2445 and CS 22874042 are from this study with CS 22874042 shown as a larger asterisc.

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