Fig. 22
Sub-DLA detected towards QSO B2342 + 3417 at zabs = 2.940. The solid red line corresponds to the Voigt profile fit to the sub-DLA with an inferred column density of log NH I = 20.18 ± 0.10. The system is detected down to the Lyγ. The system is fitted simultaneously with a high column density absorber at zabs = 2.909 (log NH I = 21.10 ± 0.10) to determine the column density precisely.
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