Fig. 2.
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Evolution of the He II (λ4685.680 Å) and He I (λ5875.640 Å, λ6678.151 Å, and λ7065.190 Å) line profiles, and the Raman scattered O VI (λ6825 Å) line with the radial velocity scale corresponding to the parent O VI (λ1032 Å) line in the HRS/SALT spectra (low-resolution mode: R ∼ 14 000) collected during quiescence. The red dashed vertical lines mark the systemic velocity.
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