Substellar and stellar companions in eclipsing binaries

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

Contributions of the Astronomical Observatory Skalnate Pleso Pub Date : 2020-11-01 DOI:10.31577/caosp.2020.50.4.772

K. Zervas, E. Christopoulou, A. Papageorgiou

引用次数: 0

Abstract

. We present an extensive analysis of O-C diagrams constructed by previously published times of minima and updated by photometric observations carried out at Mythodea Observatory (Astrophysics Laboratory, Department of Physics, University of Patras). A two-companion model is attributed to the over-contact (W UMa type) binary system TZ Boo according to a Light-Time Eﬀect (LITE), while in the case of the post-common envelope binary NSVS 14256825 a Jovian type circumbinary companion is the most plausible explanation of the apparent period variation.

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食双星中的亚恒星和伴星

．我们对先前发表的极小期时间构建的O-C图进行了广泛的分析，并通过Mythodea天文台(Patras大学物理系天体物理实验室)进行的光度观测进行了更新。根据光时效应(Light-Time Effect, LITE)，过度接触(wuma型)双星系统TZ Boo有一个双伴星模型，而对于后公共包络双星nsv 14256825，一个木星型的环双星伴星是对明显周期变化最合理的解释。

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.