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Fig. 5
Extinction and hydrogen equivalent column density values as a function of redshift for our sample. Long GRBs are plotted with empty red squares while the short GRB 130603B is given with a filled red square. Empty blue circles represent values obtained in a study of a complete sample of long GRBs (Covino et al. 2013).
This figure is made of several images, please see below:
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