Fig. 3.
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Ratio between Hα and Hβ luminosity as a function of Hα luminosity. The blue (orange) points show the targets that are fitted with a double (single) Gaussian model. We remove two targets (from the three exceptions in Table A.4) whose Hβ lines cannot be fitted with the same number of Gaussian components and line shape as that of Hα. The error bars are 1σ uncertainties.
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