# Are rotating strange quark stars good sources of gravitational waves

@article{GondekRosiska2003AreRS, title={Are rotating strange quark stars good sources of gravitational waves}, author={Dorota Gondek-Rosińska and E. Gourgoulhon and Paweł Haensel}, journal={arXiv: Astrophysics}, year={2003} }

We study the viscosity driven (Jacobi-like) bar mode instability of rapidly rotating strange stars in general relativity. A triaxial, "bar shaped" compact star could be an efficient source of continuous wave gravitational radiation in the frequency range of the forthcoming interferometric detectors. We locate the secular instability point along several constant baryon mass sequences of uniformly rotating strange stars described by the MIT bag model. Contrary to neutron stars, strange stars with…

## 27 Citations

Properties of relativistically rotating quark stars

- Physics, Geology
- 2017

In this work, quasi-equilibrium models of rapidly rotating triaxially deformed quark stars are computed in general relativistic gravity, assuming a conformally flat spatial geometry…

Discriminating strange star mergers from neutron star mergers by gravitational-wave measurements

- Physics
- 2010

We perform three-dimensional relativistic hydrodynamical simulations of the coalescence of strange stars and explore the possibility to decide on the strange matter hypothesis by means of…

Last orbits of binary strange quark stars

- Physics
- 2005

We present the first relativistic calculations of the final phase of inspiral of a binary system consisting of two stars built predominantely of strange quark matter (strange quark stars). We study…

Gravitational waves from phase-transition-induced collapse of neutron stars

- Physics, Geology
- 2006

We study the gravitational radiation from gravitational collapses of rapidly rotating neutron stars induced by a phase transition from normal nuclear matter to a mixed phase of quark and nuclear…

Differentially rotating strange star in general relativity

- PhysicsPhysical Review D
- 2019

Rapidly and differentially rotating compact stars are believed to be formed in binary neutron star merger events, according to both numerical simulations and the multi-messenger observation of…

Relativistic simulations of compact object mergers for nucleonic matter and strange quark matter

- Physics
- 2010

Under the assumption that the energy of the ground state of 3-flavor quark matter is lower than the one of nucleonic matter, the compact stellar remnants of supernova explosions are composed of this…

Rotating stars in relativity

- PhysicsLiving reviews in relativity
- 2017

The latest theoretical understanding of rotating stars in relativity is reviewed and several new sections have been added on equilibria in modified theories of gravity, approximate universal relationships, the one-arm spiral instability, and on analytic solutions for the exterior spacetime.

Uniformly rotating, axisymmetric and triaxial quark stars in general relativity

- Physics
- 2018

Quasiequilibrium models of uniformly rotating axisymmetric and triaxial quark stars are computed in a general-relativistic gravity scenario. The Isenberg-Wilson-Mathews (IWM) formulation is employed…

Rotating Quark Stars in General Relativity

- Physics
- 2018

We have built quasi-equilibrium models for uniformly rotating quark stars in general relativity. The conformal flatness approximation is employed and the Compact Object CALculator (cocal) code is…

## References

SHOWING 1-10 OF 78 REFERENCES

The Bar-Mode Instability in Differentially Rotating Neutron Stars: Simulations in Full General Relativity

- Physics
- 2000

We study the dynamical stability against bar-mode deformation of rapidly spinning neutron stars with differential rotation. We perform fully relativistic three-dimensional simulations of compact…

Strange stars as persistent sources of gravitational waves

- Physics
- 2002

We investigate the relevance of the gravitational-wave driven r-mode instability for strange stars. We find that the unstable r-modes affect strange stars in a way that is quite distinct from the…

Dynamical Bar Instability in Rotating Stars: Effect of General Relativity

- Physics
- 2000

We study the dynamical stability against bar-mode deformation of rapidly and differentially rotating stars in the first post-Newtonian approximation of general relativity. We vary the compaction of…

Lower limits on the maximum orbital frequency around rotating strange stars

- Physics, Geology
- 2001

Observations of kHz quasi-periodic oscillations (QPOs) in the X-ray fluxes of low-mass X-ray binaries (LMXBs) have been used in attempts to constrain the external metric of the compact members of…

Gravitational radiation from rapidly rotating nascent neutron stars

- Physics, Geology
- 1995

We study the secular evolution and gravitational wave signature of a newly formed, rapidly rotating neutron star. The neutron star may arise from core collapse in a massive star or from the…

Quasi-normal Modes of Rotating Relativistic Stars: Neutral Modes for Realistic Equations of State

- Physics
- 1999

We compute zero-frequency (neutral) quasi-normal f-modes of fully relativistic and rapidly rotating neutron stars using several realistic equations of state (EOSs) for neutron star matter. The…

r-Mode Oscillations and Spin-down of Young Rotating Magnetic Neutron Stars

- Physics
- 1999

Recent work has shown that a young, rapidly rotating neutron star loses angular momentum to gravitational waves generated by unstable r-mode oscillations. We study the spin evolution of a young,…

The crust of rotating strange quark stars

- Physics, Geology
- 2001

Calculations of the properties of rotating strange stars with crusts are performed within the framework of general relativity. We employ an equation of state (EOS) of strange quark matter based on…

Rapidly Rotating Neutron Stars in General Relativity: Realistic Equations of State

- Physics
- 1993

We construct equilibrium sequences of rotating neutron stars in general relativity. We compare results for fourteen nuclear matter equations of state. We determine a number of important physical…

Effects of Rapid Stellar Rotation on Equation-of-State Constraints Derived from Quasi-periodic Brightness Oscillations

- Physics
- 1998

Quasi-periodic X-ray brightness oscillations (QPOs) with frequencies ≳1 kHz have now been discovered in more than a dozen neutron stars in low-mass X-ray binary systems using the Rossi X-Ray Timing…