Abstract
ABSTRACT KWAN-YU CHEN Rosemary Hill Observatory, University of Florida AND WALThR J. RHEIN Department of Mathematical Sciences, Florida Technological University Received 10 September 1970; revised 26 April 1971 The stars of a binary system are assumed to exchange radiation like spherical black- bodies with limb darkening. The temperatures of the facing surfaces are calculated as ftinctions of the radii, the intrinsic temperatures, and the coefficients of limb darken ng of the two stars. The light curves, neglecting eclipses, are then calculated as functions of the wavelength of the radiation, the inclination of the system and its phase, using numerical integration on a digital computer. The geometrical model of the sytem is exact and allows calculations to be made for close binary systems. The orbit is assumed to be circular. Results for several typical close binary systems are shown. Comparisons are made with the light curves of several observed close binaries. Key words: eclipsing binaries - reflection effect
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