An unusually low mass of some "neutron" stars?
| dc.creator | Gondek-Rosinska, D. | |
| dc.creator | Kluzniak, W. | |
| dc.creator | Stergioulas, N. | |
| dc.date | 2002-06-27 | |
| dc.date.accessioned | 2026-07-07T02:04:04Z | |
| dc.date.available | 2026-07-07T02:04:04Z | |
| dc.description | The X-ray emission of RXJ1856.5-3754 has been found to coincide to unprecedented accuracy with that of a blackbody, of radius 5.8+-0.9 km for the measured parallax distance of 140 pc (Burwitz et al. 2001, Drake et al. 2002). If the emission is uniform over the whole surface of a non-rotating star, the mass of the star cannot exceed 0.75+-0.12 solar mass regardless of its composition. If the compact object is a quark star described by the MIT-bag equation of state (a ``strange star''), the mass is no more than 0.3 solar mass. Comparably small masses are also obtained for the X-ray bursters Aql X-1 and KS1731-260 for some fits to their spectra. | |
| dc.description | 4 pages, 1 figure, submitted to A&A | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0206470 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0206470 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/4610 | |
| dc.subject | Astrophysics | |
| dc.title | An unusually low mass of some "neutron" stars? | |
| dc.type | text |