Fig. 14
SDSS spectrum of J 1237 + 0647 (black). The orange dashed spectrum is the unreddened SDSS QSO composite spectrum (Vanden Berk et al. 2001). The red spectrum is the composite spectrum reddened by a SMC extinction law with E(B − V) = 0.053 (i.e. AV = 0.14, in the rest-frame of the absorber). The fit was performed using an IDL code based on MPFIT (Markwardt 2009).
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