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

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.

13 pages, 2 figures, 3 tables

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• Anisotropic Dark Matter Stars
• Constraining the mass of fermionic dark matter from its feeble interaction with hadronic matter via dark mediators in neutron stars
• Bosonic dark matter dynamics in hybrid neutron stars
• Impact of dark boson mediated feeble interaction between dark matter and hadronic matter on $f$-mode oscillation of neutron stars
• Effects of dark boson mediated feeble interaction between dark matter (DM) and quark matter on $f$-mode oscillation of DM admixed quark stars
• On exotic objects made of dark energy and dark matter: Mass-to-radius profiles and tidal Love numbers
• The maximum mass of dark matter existing in compact stars based on the self-interacting fermionic model
• Slowly rotating condensate dark stars beyond the mean-field approximation