Macroscopic properties of the XTE J1814-338 as a dark matter admixed strange star

TL;DR

This paper investigates the macroscopic properties of the ultracompact XTE J1814-338, considering it as a dark matter admixed strange star, and calculates key physical parameters based on dark matter content.

Contribution

It introduces a model for dark matter admixed strange stars and computes their macroscopic properties using neutralino dark matter assumptions.

Findings

Maximum mass of the star with dark matter considered

Calculated moment of inertia and gravitational redshift

Estimated total dark matter content in the star

Abstract

In this letter, I discuss the macroscopic properties of the ultracompact object XTE J1814-338, whose inferred mass and radius read $M$ = 1.21 $\pm$ 0.05 $M_\odot$ and R = 7.0 $\pm$ 0.4 km. By using the neutralino as WIMP dark matter with a fixed Fermi momentum, I calculated the maximum possible mass of this object, the moment of inertia, the gravitational redshift, the dimensionless tidal parameter, and the total amount of dark matter for a 1.2$M_\odot$ star.