Eccentric Eclipsing Binaries: Tests of General Relativity

Volume 35 number 1 (2007)

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M. Wolf

L. Sarounov†

Abstract

The study of apsidal motion in detached eclipsing binary systems with eccentric orbits is known as an important source of information for stellar internal structure as well as for the possibility of verification of general relativity outside the Solar System. Suitable objects for this research were collected by Giménez (1994). In this paper we report a summary of our results on the observational status of three eccentric binaries with longer periods, namely V541 Cygni, EW Orionis, and GG Orionis, and we appeal to photometrists with moderate or small telescopes around the world to observe these binaries.