Some evolutionary aspects of the binary stellar systems containing neutron star

TL;DR

This paper discusses the scarcity of observed binary systems with neutron stars, highlighting detection challenges and the importance of studying these systems to understand stellar evolution.

Contribution

It provides an analysis of the current observational limitations and emphasizes the significance of investigating binary neutron star systems for stellar evolution insights.

Findings

Only 141 pulsars are known in binary systems out of 1879

Binary systems with neutron stars are likely more numerous than observed

Studying these systems can reveal key stellar properties

Abstract

The obvious lack of the binary stellar systems that contain neutron stars (NS) is observed at present. Partly it is caused by the fact that it is very difficult to detect neutron star in a binary system if this relativistic component does not manifest itself as a radio pulsar. Among 1879 pulsars that are listed in the ATNF pulsar catalogue, only 141 pulsars are known to be the companions in binary systems. Only 81 objects having median mass estimation of more than 0.2 $M_{\odot}$ constitute the binary systems with pulsars. Nevertheless, such systems should be much more numerous and their investigation is of the great interest because thier structure and evolution can certainly help in our understanding of many unique properties that are seen in some stars.