盖亚BH1:了解银河系低q双星人口统计学的关键

IF 3.2 Q2 ASTRONOMY & ASTROPHYSICS Galaxies Pub Date : 2023-09-18 DOI:10.3390/galaxies11050098

Oleg Malkov

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引用次数: 0

摘要

最近发现的盖亚BH1双星系统，一个类似太阳的恒星和一个黑暗的物体(可能是一个黑洞)，可能会显著改变我们对双星数量的理解。本文给出了不同观测类双星系统的组分质量比(q)分布。它们都显示出低q系统的严重短缺。在这项工作中，我(定量地)展示了我们的无知是如何扩展的，并指出了发现和研究像盖亚BH1这样的系统的重要性。此外，本文还给出了主序星的近似质量-温度关系和质量比-星等差关系。

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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Gaia BH1: A Key for Understanding the Demography of Low-q Binaries in the Milky Way Galaxy

The recently discovered Gaia BH1 binary system, a Sun-like star and a dark object (presumably a black hole), may significantly change our understanding of the population of binaries. The paper presents the components mass ratio (q) distributions of binary systems of different observational classes. They all show a significant shortage of low-q systems. In this work, I demonstrate (quantitatively) how our ignorance extends, and point out the importance of discovering and studying systems like Gaia BH1. In addition, an approximate mass–temperature relation and mass ratio–magnitude difference relation for main-sequence stars are presented here.

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来源期刊

Galaxies Physics and Astronomy-Astronomy and Astrophysics

CiteScore

4.90

自引率

12.00%

发文量

100

审稿时长

11 weeks

期刊介绍： Es una revista internacional de acceso abierto revisada por pares que proporciona un foro avanzado para estudios relacionados con astronomía, astrofísica y cosmología. Areas temáticas Astronomía Astrofísica Cosmología Astronomía observacional: radio, infrarrojo, óptico, rayos X, neutrino, etc. Ciencia planetaria Equipos y tecnologías de astronomía. Ingeniería Aeroespacial Análisis de datos astronómicos. Astroquímica y Astrobiología. Arqueoastronomía Historia de la astronomía y cosmología. Problemas filosóficos en cosmología.