Rotating stars in relativity

  title={Rotating stars in relativity},
  author={V. Paschalidis and N. Stergioulas},
  journal={Living Reviews in Relativity},
Rotating relativistic stars have been studied extensively in recent years, both theoretically and observationally, because of the information they might yield about the equation of state of matter at extremely high densities and because they are considered to be promising sources of gravitational waves. The latest theoretical understanding of rotating stars in relativity is reviewed in this updated article. The sections on equilibrium properties and on nonaxisymmetric oscillations and… Expand
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Neutron stars are among the most extreme objects in the universe. They are compact stars born as the aftermath of a core-collapse supernova explosion, at the endpoint of stellar evolution, with aExpand
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Rapidly rotating relativistic stars
  • J. Friedman, J. Ipser
  • Physics
  • Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences
  • 1992
Within the last decade, significant progress has been made in modelling rotating stars in general relativity and in relating observable properties to the equation of state of matter at high density.Expand
Rotating Stars in Relativity
The sections on the equilibrium properties and on the nonaxisymmetric instabilities in f-modes and r-Modes have been updated and several new sections have been added on analytic solutions for the exterior spacetime, rotating stars in LMXBs, rotating strange stars, and on rotatingStars in numerical relativity. Expand
Several recent surprises appear dramatically to have improved the likelihood that the spin of rapidly rotating, newly formed neutron stars (and, possibly, of old stars spun up by accretion) isExpand
Axial instability of rotating relativistic stars
Perturbations of rotating relativistic stars can be classified by their behavior under parity. For axial perturbations (r-modes), initial data with negative canonical energy is found with angularExpand
Dynamical instability of differentially rotating stars
We study the dynamical instability against bar-mode deformation of differentially rotating stars. We performed numerical simulation and linear perturbation analysis adopting polytropic equations ofExpand
Oscillations of rapidly rotating relativistic stars
Nonaxisymmetric oscillations of rapidly rotating relativistic stars are studied using the Cowling approximation. The oscillation spectra have been estimated by Fourier transforming the evolutionExpand
Rapidly rotating neutron stars in R-squared gravity
$f(R)$ theories of gravity are one of the most popular alternative explanations for dark energy, and therefore studying the possible astrophysical implications of these theories is an important task.Expand
Neutron Star Pulsations and Instabilities
Gravitational radiation (GR) drives an instability in certain modes of rotating stars. This instability is strong enough in the case of the r-modes to cause their amplitudes to grow on a timescale ofExpand
Gravitational wave asteroseismology with fast rotating neutron stars
During the birth of a proto-neutron star or the merging of two older compact stars, violent non-radial oscillations may be excited, resulting in the emission of significant amounts of gravitationalExpand
Rotational modes of relativistic stars: Numerical results
We study the inertial modes of slowly rotating, fully relativistic compact stars. The equations that govern perturbations of both barotropic and nonbarotropic models are discussed, but we presentExpand