Wide binary stars with non-coeval components

IF 0.5 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Open Astronomy Pub Date : 2022-01-01 DOI:10.1515/astro-2022-0192

O. Malkov, A. Kniazev

引用次数: 0

Abstract

Abstract We have the estimated masses of components of visual binaries from their spectral classification. We have selected pairs in which the less massive component looks more evolved. Spectral observations of some of these pairs were made, and at least one pair, HD 156331, was confirmed to have components of different ages. Since mass exchange is excluded in wide binaries, it means that HD 156331 can be formed by capture.

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具有非同时期成分的宽双星

摘要我们根据可见双星的光谱分类得到了其分量的估计质量。我们选择了质量较小的成分看起来更进化的配对。对其中一些对进行了光谱观测，至少有一对HD 156331被证实具有不同年龄的成分。由于宽双星中排除了质量交换，这意味着HD 156331可以通过捕获形成。

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

Open Astronomy Physics and Astronomy-Astronomy and Astrophysics

CiteScore

1.30

自引率

14.30%

发文量

审稿时长

16 weeks

期刊介绍： The journal disseminates research in both observational and theoretical astronomy, astrophysics, solar physics, cosmology, galactic and extragalactic astronomy, high energy particles physics, planetary science, space science and astronomy-related astrobiology, presenting as well the surveys dedicated to astronomical history and education.