Evolution of low-mass close binaries with orbital momentum losses.

The evolution of secondary components in close binary systems with compact primary components is calculated with allowance for orbital angular momentum loss due to a magnetic stellar wind and gravitational wave radiation. Stars with chemical compositions corresponding to disk and bulge objects are considered. The influence of induced stellar wind on the evolution of secondary components is investigated. The results of the calculations make it possible to explain the period distribution of cataclysmic variables and matter transfer rates observed in them and in low-mass X-ray sources.