Does Dark Matter admixed pulsar exist ?

TL;DR

This study models pulsars as ordinary matter admixed with dark matter, using galactic rotation curve data to analyze their physical features and properties across different galaxies.

Contribution

It introduces a two-fluid model incorporating dark matter based on the SIS profile to study pulsar characteristics in various galaxies.

Findings

Calculated radii, compactness, and surface red-shift for four specific pulsars.

Demonstrated the influence of dark matter on pulsar physical features.

Provided detailed physical profiles of pulsars in different galactic environments.

Abstract

In this paper, we have considered a twofluid model assuming that the pulsars are made of ordinary matter admixed with dark matter.Contribution of dark matter comes from the fitting of the rotation curves of the SPARC sample of galaxies[95]. For this we have investigated the dark matter based on the Singular Isothermal Sphere (SIS) dark matter density profile in the galactic halo region. Considering this twofluid model, we have studied the physical features of the pulsars present in different galaxy in details. Here, we compute the probable radii, compactness (u) and surface red-shift (Zs) of the four pulsars namely : PSR J1748-2021B in NGC 6440B galaxy, PSR J1911-5958A in NGC 6752 galaxy, PSR B1802-07 in NGC 6539 galaxy and PSR J1750-37A in NGC 6441 galaxy.