Fig. 5.
Top panel: ESO/FORS2 stacked spectrum of the multiple images belonging to family 9 in MACS J0329 in arbitrary units, totaling 33 h of exposure time on target. The original data and continuum are shown in blue and orange, respectively. The vertical red line indicates the Lyman-break position around ≈8720 Å and the dashed horizontal line shows the zero level. Middle and bottom panels: two-dimensional signal-to-noise ratio of the data and the sky emission.
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