Hunting for overlooked eccentric eclipsing binaries from ASAS-3 survey
Khalikova A.V. Gaynullina E.R. Serebryanskiy A.V.
November 2022Elsevier B.V.
New Astronomy
2022#97
We present the results of searching for new candidates of eclipsing binaries with eccentric orbits in the ASAS Catalog of Variable Stars (ACVS) using publicly available data from the All Sky Automated Survey (ASAS) and the Transiting Exoplanet Survey Satellite (TESS). Unsupervised machine learning techniques were applied to find anomalies among the light curves of eclipsing binaries. The light curves modeling were performed using JKTEBOP code. The pulsation analysis was done with FAMIAS. We identified 19 new eclipsing binary candidates with non-zero eccentricities in the ACVS, including 10 candidates with eccentricities e ≥ 0.1. Estimates of eccentricities are given. We also report on possible presence of the small-amplitude stellar pulsations at least in two of the reported systems.
ACVS – surveys , ASAS - surveys , Catalogs , Clustering analysis – techniques , Data analysis – methods , Eclipsing – binaries , Orbital parameters – methods , Photometric , TESS – stars , Variables - binaries
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Ulugh Beg Astronomical Institute, Astronomicheskaya str., 33, Tashkent, 100052, Uzbekistan
Fesenkov Astrophysical Institute, Observatory 23, Almaty, 050020, Kazakhstan
Ulugh Beg Astronomical Institute
Fesenkov Astrophysical Institute
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