Equivalent widths of the spectral lines of the β Lyrae system and their changes

The equivalent widths of 82 absorption spectral lines were measured on spectrograms well spread over the entire light curve. The dependence of the equivalent widths on phase and the dependence of the central intensities on phase were studied for selected spectral lines. The constructed phase diagrams were qualitatively interpreted in accordance with the generally accepted model of the β Lyrae system. (author)