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Fig. 12.

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Diagnostic diagrams for each component fitted from the SDSS spectrum of J0945, where the colour code for the components is the same as in Fig. 3. The lines separating AGN, transition objects, LINERs, and star-forming galaxies are from Kewley et al. (2001; solid curve), and Kauffmann et al. (2003; dashed curve), and Kewley et al. (2006; dash-dotted curve). Error bars have been calculated from a series of 100 Monte Carlo simulations.

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