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Fig. 4

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Normalized spectra of HD 87566, HD 87833, HD 304864, and HD 87479 with some identified absorption lines. HD 87566 has a low rotational velocity vsini < 4.5 km s-1. In the spectra of HD 87833, HD 304864, and HD 87479 we see the absorption lines broadened by the rotation velocity of 8.0 km s-1, 11 km s-1, and 15 km s-1.

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