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Fig. 12


Thin blue lines correspond to synthetic spectra computed with A(O)= 6.5 and 7.5. and the thick red line (best fit) has been obtained with A(O)= 7.1. The crosses represent the observed spectrum (binned x2). The dots at the bottom of the figure are the difference between the best fit and the observed spectrum (shifted upward by 0.8).

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