Spectrophotometry of some lines in Beta Lyrae

A spectrophotometric study of the spectral lines Hγ, He I λ 4388 Å, He I λ 4472 Å, Fe II λ 4352 Å and Mg II λ 4481 Å in the spectrum of β Lyrae has been made by using fifteen spectra taken with a spectrograph (8 Å/mm) attached to the 1-metre reflector of the Hamburger Sternwarte. The profiles of the above lines are given. Also the probable variations of these profiles with time are examined on the basis of a comparison of our observational data with data existing in the literature. More attention was paid to the emission components of Hγ and the Helium lines. The views previously described in a general way by Sahade as to the structure of the emission lines are rather supported.