Mass and radius estimation for the neutron star in X-ray burster 4U 1820-30
arXiv:1105.1525 · doi:10.1111/j.1365-2966.2011.18948.x
Abstract
We present a new method for determining masses and radii of neutron stars residing in thermo-nuclear X-ray burst sources. To illustrate this method we apply it to a burst from the source 4U 1820-30 recorded by the Rossi X-Ray Timing Explorer. Fits of the observed X-ray spectra to grids of Comptonised model atmospheres yield estimates for the mass and radius of the neutron star, M=1.3 \pm 0.6 M_sol and R=11^+3_-2 km, respectively.
MNRAS in print
References in corpus (4)
Cited by in corpus (10)
- Neutron star mass and radius measurements from atmospheric model fits to X-ray burst cooling tail spectra
- X-ray bursting neutron star atmosphere models using an exact relativistic kinetic equation for Compton scattering
- The direct cooling tail method for X-ray burst analysis to constrain neutron star masses and radii
- Statistics of Measuring Neutron Star Radii: Assessing A Frequentist and A Bayesian Approach
- A family of well behaved charge analogues of Durgapal's perfect fluid exact solution in general relativity
- Spectral state evolution of 4U~1820-30: the stability of the spectral index of Comptonization tail
- Basic parameters of the helium accreting X-ray bursting neutron star in 4U 1820-30
- Accurate ray tracing of realistic neutron star atmospheres for constraining their parameters
- A new well behaved class of charge analogue of Adler's relativistic exact solution
- The mass of the neutron star in 4U 1820-30 revisited