Fig. 3.
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Comparison of spectral lines between J2140 and stars CS 29502−092 and CS 22948−066. We show the spectral lines of Zn I at 4722.16 Å (top left panel), of Co I at 4118.77 Å and 4121.32 Å (top right panel), of Ni I and Cr I (bottom left panel) at 4604.99 Å and 4648.65 Å, and 4646.15 Å and 4651.28 Å, respectively, and of Mn I at 4754.04 Å (bottom right panel).
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