Extracting the spectrum of the brighter star. The template spectrum of the brighter star that was constructed by combining the V1507 Cyg spectra is shown at the top in green. Immediately below this is (1) the spectrum of the B8 I spectroscopic standard β Ori, (2) the β Ori spectrum scaled by a factor of 0.6, (3) the result of subtracting this scaled spectrum from the template spectrum (“Δ,”), and (4) the spectrum found by combining spectra that have had the β Ori spectrum subtracted individually and then aligning the results. The bottom spectrum contains broad Si II emission, while He I 6678 appears as a broad blueshifted line. There is also weak emission at the rest wavelength of the He I line, and a broad, shallow redshifted component.