Fig. 7.
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Normalized EW(Ly[[INLINE491]] + N V) distribution for the 16 quasars at z = 5.93 − 6.45 identified through our CL selection. The solid green and dashed red curves show the best-fit log-normal distributions for PS1 quasars (Bañados et al. 2016) and SDSS quasars (Diamond-Stanic et al. 2009), with mean values of log(EW/Å) = 1.542 and 1.803, and standard deviations of 0.391 and 0.205 Å, respectively. The vertical dashed gray line marks the limit for WLQs (EW < 15.4 Å; Diamond-Stanic et al. 2009). While most of our sample overlaps with the PS1 distribution at log(EW/Å) < 2, a substantial excess appears in the high-EW tail, potentially revealing a distinct population of strong-line quasars.
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