Fig. 4.
Spectral decomposition of the CLQ J0823+4220, which turned off. The fitted galaxy (blue curve) and quasar (green) components, and their sum (red) from the best-fit eigenspectrum coefficients (found as per Sect. 3.4.2) are shown. Top: the earlier epoch (MJD = 52266) bright-state spectrum. Bottom: the later epoch (MJD = 54524) dim-state spectrum.
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