Fig. 8.
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Continuum-normalized SDSS 2006 spectrum showing, from right to left, the best-fit model of the UFO BALs’ troughs for CIV (blue), SiIV (purple), NV (red), and Lyα (gold) ions. The spectrum includes many lines of the Lyα forest which we masked (vertical gold lines) during the fitting procedure. The continuum level is represented as a horizontal magenta line.
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