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Fig. 2.
Discovery spectrum of PSO J0309+27 at z = 6.10 ± 0.03, taken with MODS/LBT. The O[VI]λ1033 Å, Ly-αλ1216 Å, OIλ1304 Å, and CIIλ1336 Å lines are denoted. The red dashed line represents the quasar template from Vanden Berk et al. (2001) at the redshift of the object for comparison.
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