Portion of X-shooter UVB spectrum (black) around the H2 lines, with the best-fit synthetic spectrum for H2 absorption (with b = 1km s-1) in red. Horizontal blue segments connect rotational levels (short tick marks) from a given Lyman (L) or Werner (W) band, as labelled above. H i Ly-β and Ly-γ from the DLA are indicated as red dashed profiles. The green profile corresponds to HD lines.
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