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Simultaneous solutions for photometric and spectroscopic observations of TX UMa
Authors:Young Woon Kang  Kyu Dong Oh
Institution:(1) Department of Earth Science, King Sejong University, Seoul, Korea;(2) Department of Earth Science, Chonnam National University, Kwangju, Korea
Abstract:B andV light curves for one epoch and radial velocity curves of three different epochs have been analyzed to revise the solution of TX UMa. The solution has been adjusted simultaneously in the light curves and radial velocity curves by the method of Wilson and Devinney's differential correction. The primary star's surface rotation rate to synchronous rate is determined as 1.768 from one of the radial velocity curves. The absolute dimension of the system has been deduced based on the simultaneous solution. The primary star is well fitted to the evolutionary track for a single star while the secondary star, while filling its Roche lobe, is fitted to the evolutionary track for a close binary system.
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