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Fig. 3.
Chebyshev 50-order polynomial fit to the UV fluxes showing the phase lag in ascending and descending intensity branches of the following bands. Top: 1371e (red), FeVpsudo (black) and Fc1840 (blue). Bottom: Fc1840 continuum (blue), NIVe (green) CIVe (red) and HeIIe (black).
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