Impacts of dark matter on the curvature of the neutron star

TL;DR

This paper investigates how dark matter influences the curvature and stability of neutron stars using relativistic mean-field models, revealing significant effects on surface curvature and stability with increasing dark matter presence.

Contribution

It introduces an analysis of dark matter effects on neutron star curvature using relativistic mean-field equations, highlighting the impact on surface curvature and stability.

Findings

Dark matter significantly affects neutron star surface curvature.

Presence of dark matter influences neutron star stability.

Dark matter's impact varies with neutron star mass.

Abstract

The effects of dark matter (DM) on the curvatures of the neutron star (NS) are examined by using the stiff and soft relativistic mean-field equation of states. The curvatures of the NSs are calculated with the variation of baryon density. Also, it is found that the radial variation of the different curvatures significantly affected by the presence of DM inside the NS. The effects of DM are less pronounced on the compactness of the maximum NS mass, but still significant. The NS surface curvature is found to be more remarkable for the massive star. The binding energy of the NSs become positive with the increasing DM momentum and makes the system unstable.