Quasiequilibrium sequences of binary strange quark stars in general relativity

TL;DR

This paper models the inspiral phase of binary strange quark stars in general relativity, providing the first quasi-equilibrium sequences for such systems to aid gravitational wave detection.

Contribution

It introduces the first computations of quasi-equilibrium sequences of binary strange quark stars using a conformal flatness approximation and spectral methods.

Findings

First quasi-equilibrium sequences of binary strange quark stars.

Insights into gravitational wave signatures from such systems.

Hydrodynamical modeling under irrotational flow assumption.

Abstract

Inspiraling compact binaries are expected to be the strongest sources of gravitational waves for VIRGO, LIGO and other laser interferometers. We present the first computations of quasi-equilibrium sequences of compact binaries containing two strange quark stars (which are currently considered as a possible alternative to neutron stars). We study a precoalescing stage in the conformal flatness approximation of general relativity using a multidomain spectral method. A hydrodynamical treatment is performed under the assumption that the flow is irrotational.