Rotational parameters of strange stars in comparison with neutron stars
arXiv:0805.2721 · doi:10.1016/j.newast.2009.07.003
Abstract
I study stellar structures the mass, the radius, the moment of inertia and the oblateness parameter at different spin frequencies for strange stars and neutron stars in a comparative manner. I also calculate the values of the radii of the marginally stable orbits and Keplerian orbital frequencies. By equating kHz QPO frequencies to Keplerian orbital frequencies, I find corresponding orbital radii. Knowledge about these parameters might be useful in further modeling of the observed features from LMXBs with advanced and improved future techniques for observations and data analysis.
arXiv commentAccepted for publication in New Astronomy
References in corpus (27)
- The equation of state for nucleon matter and neutron star structure
- The Physics of Neutron Stars
- Neutron Star Observations: Prognosis for Equation of State Constraints
- A Radio Pulsar Spinning at 716 Hz
- Constraints on the high-density nuclear equation of state from the phenomenology of compact stars and heavy-ion collisions
- Constraining the Equation of State with Moment of Inertia Measurements
- EXO 0748-676 Rules out Soft Equations of State for Neutron Star Matter
- The Mass and Radius of the Neutron Star in EXO 1745-248
- Keplerian frequency of uniformly rotating neutron stars and quark stars
- Evidence for 1122 Hz X-Ray Burst Oscillations from the Neutron-Star X-Ray Transient XTE J1739-285
- Correlations between kHz QPO and Low Frequency Features Attributed to Radial Oscillations and Diffusive Propagation in the Viscous Boundary Layer Around a Neutron Star
- On the nature of the compact star in 4U 1728-34
- Discovery of Two Simultaneous Kilohertz Quasi-Periodic Oscillations in KS 1731-260
- A relativistically smeared spectrum in the neutron star X-ray Binary 4U 1705-44: Looking at the inner accretion disc with X-ray spectroscopy
- On the kHz QPO frequency correlations in bright neutron star X-ray binaries
- KiloHertz quasi-periodic oscillations difference frequency exceeds inferred spin frequency in 4U 1636-53
- Temperature profiles of accretion discs around rapidly rotating strange stars in general relativity: a comparison with neutron stars
- The correlations between the spin frequencies and kHz QPOs of Neutron Stars in LMXBs
- Pseudo-Newtonian Potentials to Describe the Temporal Effects on Relativistic Accretion Disks around Rotating Black Holes and Neutron Stars
- Measuring Neutron Star Mass and Radius with Three Mass-Radius Relations
- Rapidly rotating strange stars for a new equation of state of strange quark matter
- Origin and interpretation of kilohertz QPOs from strange stars in X-ray binary system: theoretical hydrodynamical description
- Compact strange stars with a medium dependence in gluons at finite temperature
- Fast rotation of neutron stars and equation of state of dense matter
- Sidebands to the lower kilohertz QPO in 4U1636-53
- Rotating Quark Star in Chiral Colour Dielectric Model
- Members of the double pulsar system PSR J0737-3039 : neutron stars or strange stars ?
Cited by in corpus (6)
- Quadrupole moments of rotating neutron stars and strange stars
- The role of binding energies of neutron stars on the accretion driven evolution
- f-mode oscillations of anisotropic neutron stars in full general relativity
- Prospects of constraining the dense matter equation of state from the timing analysis of pulsars in double neutron star binaries: the cases of PSR J0737-3039A and PSR J1757-1854
- Spin Down of Rotating Compact Magnetized Strange Stars in General Relativity
- Periastron Advance in Neutron Star - Black Hole Binaries