Fig. 4.
Synthetic spectra of SDSS J002314.00+030758.0 in the region of the CH G-band (continuous lines) superimposed on the observed spectrum (small crosses). The theoretical spectra are represented as blue lines correspond to carbon abundances A(C) = 6.0, 6.6 and 6.9 dex. The red line represent the best fit to the observed spectrum and corresponds to a carbon abundance A(C) = 6.4 dex.
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