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Fig. 2

image

Top: quasi-B band light curve of V358 Aqr in the 1991 high state (red) and in the 1995 intermediate state with a flare occurring in spectrum #7 (black). The ordinate is in units of 10-16 ergs cm-2 s-1 Å-1. Center: mean spectra of the 1991 data for the bright and faint phase orbital intervals, 0.05–0.80 and 0.83–0.00, respectively, and the difference spectrum. Bottom: mean radial velocity variation in 1991 measured from single-Gaussian fits to the Hβ and HeIIλ4686 emission lines.

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