Phase-resolved spectroscopic study of the isolated neutron star RBS1223
Abstract
To constrain mass-to-radius ratio of the isolated neutron star RBS 1223, the phase resolved X-ray spectroscopic analysis performed. A model with condensed iron surface and partially ionized hydrogen of highly magnetized thin atmosphere above it allowed to fit the observed spectra and the unprecedent broad absorption feature (at 0.3 keV, EW ~150 eV). It also lead to determine the parameters of two emitting areas, to constrain the geometry of them and the gravitational redshift (gr~0.16) of RBS 1223.
- Publication:
-
AstroPhysics of Neutron Stars 2010: A Conference in Honor of M. Ali Alpar
- Pub Date:
- September 2011
- DOI:
- 10.1063/1.3629512
- arXiv:
- arXiv:1108.3897
- Bibcode:
- 2011AIPC.1379..195H
- Keywords:
-
- redshift;
- gravitational waves;
- X-ray sources (astronomical);
- interstellar magnetic fields;
- 98.62.Py;
- 95.85.Sz;
- 98.70.Qy;
- 97.10.Ld;
- Distances redshifts radial velocities;
- spatial distribution of galaxies;
- Gravitational radiation magnetic fields and other observations;
- X-ray sources;
- X-ray bursts;
- Magnetic and electric fields;
- polarization of starlight;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 7 pages, 7 figures, Astronomy and Astrophysics accepted