SYNTHESIZING OF RADIAL-VELOCITY CURVES OF CLOSE BINARY-SYSTEMS

A new method for calculating the synthetic spectral line profiles and radial velocity curves of close binary systems is developed. The metho d uses Kurucz's data on stellar absorption line profiles. The tidal an d rotational distortion of the star shape (i.e., an effect of elliptic ity), mutual heating by radiation (i.e., a reflection effect), and a s tellar wind from the star surface are taken into account. The cores of absorption lines are assumed to form at the bottom of the wind. The m ethod is developed for both classical close binary systems and X-ray b inaries. Application of the method to the analysis of the radial veloc ity curve of the optical component in HZ Her provides satisfactory res ults.