Hierarchical triple star systems towards the Galactic Bulge through OGLE's eye.

IF 0.4 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Contributions of the Astronomical Observatory Skalnate Pleso Pub Date : 2020-04-01 DOI:10.31577/caosp.2020.50.2.421

T. Hajdu, T. Borkovits, E. Forgács-dajka, J. Sztakovics, G. Marschalkó, G. Kutrovátz

引用次数: 0

Abstract

We report the result of eclipse timing variation (ETV) analyses of OGLE-IV eclipsing binaries (EBs). We have identified around 1000 potential triple (or multiple) system candidates and, in addition, we determined the orbital parameters and we carried out statistical analyses of the properties of the candidates. We found that (i) the distribution of the outer eccentricity has a maximum around e2 = 0.3; (ii) in most cases the estimated outer mass ratio is lower than q2 ∼ 0.5. Besides, we also present some systems that deserve special attention.

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通过OGLE的眼睛看到的银河系凸起的分层三星系统。

本文报道了OGLE-IV型食双星(EBs)的食时变化(ETV)分析结果。我们已经确定了大约1000个潜在的三重(或多重)系统候选者，此外，我们确定了轨道参数，并对候选者的性质进行了统计分析。结果表明:(1)外偏心率分布在e2 = 0.3附近达到最大值;(ii)在大多数情况下，估算的外质量比低于q2 ~ 0.5。此外，我们还提出了一些值得特别注意的制度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Contributions of the Astronomical Observatory Skalnate Pleso 地学天文-天文与天体物理

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Contributions of the Astronomical Observatory Skalnate Pleso" (CAOSP) is published by the Astronomical Institute of the Slovak Academy of Sciences (SAS). The journal publishes new results of astronomical and astrophysical research, preferentially covering the fields of Interplanetary Matter, Stellar Astrophysics and Solar Physics. We publish regular papers, expert comments and review contributions.