Abstract
We analyze the optical spectra of Fairall 9, a luminous Seyfert 1 galaxy. They are obtained from the AGN Watch program that has monitored this object for 9 months. The flux and variation of the optical FeII complex is measured using multi-component profile modeling with FeII templates. A convincing intrinsic Baldwin Effect (BEff) of optical FeII emission blends in Fairall 9 is discovered for the first time. The variation of FeII/Hβ (R Fe) in Fairall 9 is obtained. We also detect a marginal anti-correlation between R Fe and the continuum flux in its spectra. This anti-correlation and the relatively broad profile of Hβ in this galaxy support the dichotomy reported by Wang et al. (2005).
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