Fig. 8
Lithium abundance vs. effective temperature in CS 22876-032A and B (large stars), compared with the literature measurements (small circles) in unevolved stars with [Fe/H] < −3.0 and log g > 3.0. Downward arrows indicate upper limits. The histogram on the right side shows the Li measurements without including the upper-limit values. The blue dashed line is the predicted SBBN primordial lithium abundance and the red dash-dotted line is the value of the lithium plateau, known as the Spite Plateau.
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