Fig. 1
(Left) Light curve of HU Aqr obtained on Sep. 3–4, 1996. The quantity shown is the mean flux density averaged over the given wavelength range, units are 10-16 erg cm-2 s-1 Å-1. (Right) Orbital mean spectrum of HU Aqr after correcting individual spectra to radial velocity zero with a radial velocity semi-amplitude K2 = 280 km s-1.
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