Wide binary stars with non-coeval components-Reference-Cited by-同舟云学术

Wide binary stars with non-coeval components

Published:2022-01-01 Issue:1 Volume:31 Page:327-332
ISSN:2543-6376
Container-title:Open Astronomy
language:en
Short-container-title:

Author:

Malkov Oleg¹,Kniazev Alexey²³⁴⁵

Affiliation:

1. Department of Physics of Stellar Systems, Institute of Astronomy , Moscow , Russia

2. South African Astronomical Observatory , PO Box 9, 7935 Observatory , Cape Town , South Africa

3. Southern African Large Telescope Foundation , PO Box 9, 7935 Observatory , Cape Town , South Africa

4. Sternberg Astronomical Institute, Lomonosov Moscow State University , Moscow , Russia

5. Special Astrophysical Observatory , Nizhnij Arkhyz , Karachai-Circassia, 369167 , Russia

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.

Publisher

Walter de Gruyter GmbH

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://www.degruyter.com/document/doi/10.1515/astro-2022-0192/pdf

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