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Fig. 8.

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Zoom-in of the Hβ-[O III] λ4959,5007 region of the 2023-09 spectrum. Hβ is decomposed in a broad and a narrow component, fixed to the [O III] λ5007 line. We cut the plot in flux to zoom into the Hβ component, keeping out the majority of the emission of the [O III] λ4959,5007 lines.
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