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Fig. 5.

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Hα flux compared against FUV flux for the IN objects in our sample. The red dots are the objects with a 5σ Hα detection, and the blue dots are the objects without a 5σ Hα detection. The magenta and cyan lines give the error bars. The error bars are mainly due to uncertainty in extinction (see Sect. 3.5). The dashed horizontal lines split the sample into logarithmic bins according to their FUV flux. The number of objects with negative Hα flux for each bin is shown on the left.

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