Analytical model of compact star in low-mass X-ray binary with de Sitter spacetime

TL;DR

This paper develops an analytical model incorporating de Sitter spacetime to describe the structure of compact stars in low-mass X-ray binaries, analyzing their radii, compactness, and surface red-shift.

Contribution

It introduces a novel de Sitter spacetime-based model for compact stars in low-mass X-ray binaries, including calculations of physical parameters and possible equations of state.

Findings

Calculated radii, compactness, and surface red-shift for six compact stars.

Found the de Sitter model aligns well with observed stellar properties.

Proposed potential equations of state for the stellar objects.

Abstract

In this article, we introduce a de-sitter model in favor of compact stars in low-mass X-ray binary. Here, we merge the presence of the cosmological constant on a small scale to discussion the stellar structure and conclude that this doping is very well suitable with the familiar physical mode of the low-mass X-ray binary compact stars. We calculate the probable radii, compactness (u) and surface red-shift (Zs) of six compact stars in low-mass X-ray binaries namely Cyg X-2, V395 Carinae/2S 0921-630, XTE J2123-058, X1822-371 (V691 CrA), 4U 1820-30 and GR Mus (XB 1254-690). We also offer possible equation of state (EOS) of the stellar object.