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Detached Red Giant Eclipsing Binary Twins: Rosetta Stones to the Galactic Bulge
Nataf, D. M.; Gould, A.; Pinsonneault, M. H.
We identify 34 highly-probable detached, red giant eclipsing binary pairs among 315 candidates in Devor's catalog of ≈10 000 OGLE-II eclipsing binaries. We estimate that there should be at least 200 such systems in OGLE-III. We show that spectroscopic measurements of the metallicities and radial-velocity-derived masses of these systems would indep…
On the Apsidal Motion of Thirteen Eclipsing Binaries
Zasche, P.
Main aim of this paper is the first light curve and apsidal motion analysis of thirteen eccentric eclipsing binaries and determination of their basic physical properties. All of the systems were studied by the method of period analysis of times of minima and the light curve analysis. Many new times of minima were derived and collected from the dat…