X-shooter spectrum from 3862.0 Å to 4001.6 Å. In green and red we indicate ion lines as well as the Lyman-Werner absorption bands of molecular hydrogen for each of the three absorption components given in Table 3. The blue line shows the model with NJ0 − 5(H2)< 1015.2 cm−2, including absorption from Ar I in the GRB host galaxy. The grey shaded areas were excluded from the fit.
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