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Fig. 1

image

2D signal-to-noise ratio spectra and sky spectra of two faint Lyα emitters. The two insets show the corresponding one-dimensional FORS2 spectra, with red arrows highlighting positions of the Lyα-break, which are also visible in 2D spectra. For the galaxy at the top, EW(Lyα) ≤ 1.3 Å, and for the galaxy at the bottom, EW(Lyα) = 10.0 ± 1.3 Å.

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