The crust of rotating strange quark stars

@article{Zdunik2001TheCO,
  title={The crust of rotating strange quark stars},
  author={Julian Leszek Zdunik and Paweł Haensel and E Gourgoulhon},
  journal={Astronomy and Astrophysics},
  year={2001},
  volume={372},
  pages={535-543}
}
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 the MIT Bag Model with massive strange quarks and lowest order QCD interactions. The crust is described by the BPS equation of state. A signicant increase of the stellar radius is found close to the Keplerian (mass-shedding limit) conguration. This leads to the disappearance of the gap between the… Expand
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References

SHOWING 1-10 OF 28 REFERENCES
Thermal structure of accreting neutron stars and strange stars
Steady-state models of accreting neutron stars and strange stars are presented, and their properties as a function of accretion rate are analyzed. The models have steady-state envelopes, withExpand
Rapidly Rotating Neutron Stars in General Relativity: Realistic Equations of State
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 physicalExpand
Nuclear solid crust on rotating strange quark stars
We calculate in general relativity the thickness, mass, and moment of inertia of the nuclear solid crust that can exist on the surface of a rotating strange quark star suspended out of contact withExpand
Small strange stars and marginally stable orbit in Newtonian theory
It is shown that for very rapidly rotating low mass strange stars the marginally stable orbit is located above the stellar surface. This effect is explained by the very important role of theExpand
Innermost stable circular orbits around relativistic rotating stars
We investigate the innermost stable circular orbit (ISCO) of a test particle moving on the equatorial plane around rotating relativistic stars such as neutron stars. First, we derive approximateExpand
Physics of Neutron Star Interiors
Microscopic Theory of the Nuclear Equation of State and Neutron Star Structure.- Superfluidity in Neutron Star Matter.- Relativistic Superfluid Models for Rotating Neutron Stars.- The Tensor VirialExpand
Bar mode instability in relativistic rotating stars: A post-Newtonian treatment
We construct analytic models of incompressible, uniformly rotating stars in post-Newtonian (PN) gravity and evaluate their stability against nonaxisymmetric bar modes. We model the PN configurationsExpand
Is SAX J1808.4-3658 a Strange Star ?
The possibility of strange stars is one of the most important issues in the study of compact objects. Here we use the observations of the newly discovered millisecond x-ray pulsar SAX J1808.4-3658 toExpand
Observational evidence for strange matter in compact objects from the x-ray burster 4U 1820-30
We present systematic calculations of the mass-radius (MR) relation of a neutron star (NS) using a large variety of modern equations of state (EOS) of dense matter. The role of strangeness on the EOSExpand
Strong-Field General Relativity and Quasi-periodic Oscillations in X-Ray Binaries
Quasi-periodic oscillations (QPOs) at frequencies near 1000 Hz were recently discovered in several X-ray binaries containing neutron stars. Two sources show no correlation between QPO frequency andExpand
...
1
2
3
...