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Fig. 1
Hβ and [O III] emission line fitting of LAMOST J1131+3114. PM1996: Marziani et al. (2003) (1996 May 22), LAM2011: LAMOST (2011 December 24), APO2012: Apache Point Obs. (2012 June 15). Black: original spectra, red: the Gaussian components, blue: sum of components. The bottom panels show the residuals.
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