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Light Time Effect in eclipsing binary stars' light curves

In 1676 Roemer observed that the apparent moment of Jovian moons' eclipses change depending on the distance between Earth and Jupiter. This is due to the fact that the speed of light has a finite value. Roemer's discovery, though not a quantitative one, had a big influence on the understanding of the nature of light. In Astronomy it gave birth tho the Light Time Effect (LTE). The paper authored by S. K. Kozlowski, M. Konacki, P. Sybilski  describes a method dedicated to the analysis of eclipsing binary stars' light curves. The algorithm uses a purely mathematical model so it can be easily used to analyze w wide variety of objects. We present simulation results showing the potential use of our method as well as a detailed analysis of data from ACVS (ASAS Catalogue of Variable Stars). We report a few interesting results including three new systems with evident LTE orbits. 


Above the O–C diagram that has been obtained using the method described in the paper with third body orbital solution fitted to the O-C points.


Full paper.