Fig. 6.
Distribution of F814W magnitudes and observed close binary fraction for B and Be stars. Top panel: distribution of F814W magnitudes of all stars for which spectra were extracted (dim gray), and stars for which RVs were measured (dark gray). Bottom panel: observed spectroscopic binary fraction as a function of F814W magnitude. The orange curve is based on RV measurements, and the red curve is based on RV measurements as well as SB2s. The bias-corrected close binary fraction is overplotted in dark red.
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