Fig. 1.
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Rest-frame emission line profiles of images A (black) and B (red) for C IV (top), C III] (middle), and Mg II (bottom) displayed in different epochs, with the continuum subtracted and the line cores matched. The leftmost panels depict the spectra of image A taken in April 1999 and image B taken 14 months later (corresponding to the time delay in this system) in June 2000.
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