Fig. 1
Top panel: UBVRCIC light curves of BF Cyg covering its current, 2006-12, active phase (Skopal et al. 2007, 2012, and our unpublished data for >2011.9). Arrows indicate times of our spectroscopic observations. Lower panels: evolution of the Hα and Hβ line profiles along the outburst. The filled curves represent the jet emission components (Sect. 3.2). Fluxes are in 10-13 erg cm-2 s-1 Å-1.
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