Evolution of close binary systems parameter distributions

TL;DR

This study analyzes the evolution of close binary systems by modeling their parameters and comparing with observational data, confirming the models' effectiveness in predicting their evolutionary paths.

Contribution

It provides a detailed comparison of theoretical models with observations, validating the models' accuracy in describing binary system evolution.

Findings

Models agree well with observational data

Distributions of luminosity, semi-major axis, and angular momentum are characterized

Theoretical models can predict evolutionary stages of binary systems

Abstract

In this paper, we investigate the orbital and stellar parameters of low- and intermediate-mass close binary systems. We use models, presented in the catalogue of (Han et al. 2000) and calculate parameters of accretors. We also construct distributions of systems along luminosity, semi-major axis and angular momentum, and make some conclusions on their evolution with time. We made a comparison of the results with observational data and it shows a good agreement. The set of theoretical models published in (Han et al. 2000) quite adequately describes the observational data and, consequently, can be used to determine the evolutionary path of specific close binary systems, their initial parameters values and final stages.