Image Details
Caption: Figure 1.
Spectrum of V1507 Cyg that was recorded on 2022 May 10. The Si II and He I lines originate mainly in the spectrum of the brighter star, while the Hα emission originates in circumstellar and intrasystem material. The weak emission lines are cosmic rays that were not suppressed during processing. The slight shift in wavelength between the expected and observed locations of the Si II and He I lines is due to the orbital motion of the brighter star.
© 2023. The Author(s). Published by the American Astronomical Society.