| Issue |
EAS Publications Series
Volume 82, 2019
Astro Fluid: An International Conference in Memory of Professor Jean-Paul Zahn's Great Scientific Achievements
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|---|---|---|
| Page(s) | 127 - 133 | |
| Section | Tides in Stars and Planets | |
| DOI | https://doi.org/10.1051/eas/1982013 | |
| Published online | 21 June 2019 | |
A.S. Brun, S. Mathis, C. Charbonnel and B. Dubrulle (eds)
EAS Publications Series, 82 (2019) 127-133
Statistical analysis of period-eccentricity distribution for large samples of close binaries from Kepler, CoRoT and SB9 databases
1 Eötvös University, Department of Astronomy, H-1518 Budapest, P.O. Box 32, Hungary
2 Wigner Research Centre for Physics of the H.A.S., H-1525 Budapest, P.O. Box 49, Hungary
3 Baja Astronomical Observatory of Szeged Univ., H-6500 Baja, Szegedi út kt. 766, Hungary
Period–eccentricity distribution of eccentric eclipsing binaries (eEB) has inevitable importance in the study of the different kinds of tidal circularization (and synchronization) processes. Recent space missions provide a large amount of continuous and precise light curves, which enable us to determine several accurate stellar and dynamical parameters for thousands of freshly discovered eEBs. For statistical analysis we developed a fast, automated, although approximating method for determining eccentricity and argument of periastron from the displacement of the secondary minima and the difference of primary and secondary eclipse durations for large samples of eclipsing lightcurves. Applying this method to several hundreds of recently discovered eEBs in the fields of the primordial and secondary Kepler and also the CoRoT missions, we present a comprehensive statistical analysis of the period–eccentricity relation for different subgroups of these double star systems.
© EAS, EDP Sciences, 2019