GAS ENVELOPE STRUCTURE IN THE INTERACTIVE BINARY V448 CYG

The structure of the gas envelope in the interactive binary V448 Cyg i s studied, based on 11 spectra in H(alpha)-line region, obtained with the help of a CCD-matrix, with the signal-to-noise ration approximatel y 100 and resolution approximately 20000, and three photographic spect ra with a dispersion 14 angstrom/mm. It is shown that emission of the H(alpha)-line is formed in the envelope region connected with the B-co mponent near the L2 point. Circumstellar envelope parameters are calcu lated: 1g n(e) almost-equal-to 11, m(env) almost-equal-to 3.10(-9) M., l(env) = 6,5.10(12) cm, M almost-equal-to 9,34.10(-7) M./year.