Millisecond pulsars modelled as strange quark stars admixed with condensed dark matter

TL;DR

This paper explores how strange quark stars admixed with condensed dark matter could alter pulsar properties, providing theoretical predictions for different dark matter fractions and comparing their effects on observable parameters.

Contribution

It introduces a new class of compact stars—strange quark stars with dark matter admixture—and analyzes their impact on pulsar characteristics across various dark matter fractions.

Findings

Predicted changes in radius, compactness, and moment of inertia for different dark matter fractions.

Provided theoretical tables and graphs comparing pulsar parameters across scenarios.

Highlighted potential observational signatures of dark matter in pulsar properties.

Abstract

We study for the first time how a new class of stars could impact an ensemble of pulsars with known masses and spin-periods. These new compact objects are strange stars admixed with condensed dark matter. In this exploratory theoretical work, our goal is to determine how the basic parameters of pulsars are modified for such a new class of compact objects. In particular we consider three different scenarios that correspond to a dark matter mass fraction of $~5\%$, $~11\%$ and $~25\%$. Within each scenario with fixed parameters we predict theoretically other properties of the pulsars, such as the radius, the compactness, the moment of inertia, as well as the angular momentum. Our numerical results are summarized in tables and also shown graphically for better visualization, where a comparison between the different scenarios can be made.