Close Binary Systems in Multiple Stars: II. Eclipsing Variables in Visual Binary and Multiple Systems

摘要: Eclipsing variables in visual binary and multiple stars are searched using data from GCVS, WDS, CCDM catalogs. The list of 421 eclipsing is obtained. masses components systems the estimated mass-luminosity relation for main sequence stars. It shown that, 85% list, mass smaller by a factor 2 than total close systems. distributions orbital elements constructed used calculation orbit semi-major axes star list. periods obtained observations approximated Gaussian curves. maxima curves correspond to = 800 a.u. P 7600 years, respectively. distribution larger better described Opik’s law; it expected that this law describes real region small values as well. frequency makes 12% number type GCVS.