Fig. 13.
Molecular-hydrogen fraction and C I/H2 as a function of visual extinction, AV. Red squares represent the GRBs from this work. The large blue dots represent the same ES-DLAs as shown in Fig. 10. Diamond symbols show Galactic sightlines where dark gray-filled (resp. light gray-filled) symbols denote diffuse (resp. translucent) molecular clouds (Burgh et al. 2010).
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