Fig. 4.
Relation between the logarithm of the FWHM ratio of C IVλ1549 to Hβ and the logarithm of the Eddington ratio L/LEdd. The vertical dot-dashed line traces the Eddington limit. The colors and shapes of symbols are as in Fig. 3. The dashed line is an unweighted least-squares fit, and the filled line was obtained with the bisector method (Feigelson & Babu 1992).
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