Left panel: distribution of AI measured for C iv absorption troughs from Trump et al. (2006, blue histogram), SDSS-DR9 (cyan histogram, Pâris et al. 2012) and the present catalog (thick black histogram). The distributions are normalized for log AI > 3. Right panel: distribution of BI measured for the C iv absorption troughs from Gibson et al. (2009, green histogram), Allen et al. (2011, red histogram), SDSS-DR9 (cyan histogram, Pâris et al. 2012), and the present catalog (thick black histogram).
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