Hunting for overlooked eccentric eclipsing binaries from ASAS-3 survey

被引：0

作者：

Khalikova, A. V. ^{[1
]}

Gaynullina, E. R. ^{[1
]}

Serebryanskiy, A. V. ^{[2
]}

机构：

[1] Ulugh Beg Astron Inst, Astron Skaya str 33, Tashkent 100052, Uzbekistan

[2] Fesenkov Astrophys Inst, Observ 23, Alma Ata 050020, Kazakhstan

来源：

NEW ASTRONOMY | 2022年 / 97卷

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

Catalogs; ACVS-surveys; ASAS-surveys; TESS-stars; Variables-binaries; Eclipsing-binaries; Orbitalparameters-methods; Dataanalysis-methods; Clusteringanalysis-techniques; Photometric; SKY AUTOMATED SURVEY; STELLAR EVOLUTION; APSIDAL-MOTION; CRITICAL TESTS; MULTIPLICITY; STARS; DISTANCE; CIRCULARIZATION; OPHIUCHUS; SYSTEMS;

D O I：

10.1016/j.newast.2022.101875

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 ec-centricities are given. We also report on possible presence of the small-amplitude stellar pulsations at least in two of the reported systems.

引用

页数：12

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