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Fig. 1.
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Optical spectra of the Hot DOG sample around the Ly-α emission line, whose rest-frame is set at zero velocity using zALMA (Table 1). The feature located at ∼5000 km s−1 is the N Vλ1240 Å emission line. The spectrum of W0410–0913 is not shown since Ly-α landed in a gap between detector chips.
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