Güver, Tolga and Özel, Feryal (2012) The mass and the radius of the neutron star in the transient low mass X-ray binary SAX J1748.9−2021. (Accepted/In Press)
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Abstract
We use time resolved spectroscopy of thermonuclear X-ray bursts observed from SAX J1748.9−2021 to infer the mass and the radius of the neutron star in the binary. Four X-ray bursts observed from the source with RXTE enable us to measure the angular size and the Eddington limit on the neutron star surface. Combined with a distance measurement to the globular cluster NGC 6440, in which SAX J1748.9−2021 resides, we obtain two solutions for the neutron star radius and mass, R = 8.18±1.62 km and M = 1.78±0.3 M_sun or R = 10.93±2.09 km and M = 1.33 ± 0.33 M_sun.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | stars: neutron - X-ray: individual |
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
| Divisions: | Faculty of Engineering and Natural Sciences > Basic Sciences > Physics Faculty of Engineering and Natural Sciences |
| Depositing User: | Tolga Güver |
| Date Deposited: | 10 Jan 2013 12:13 |
| Last Modified: | 01 Aug 2019 10:04 |
| URI: | https://research.sabanciuniv.edu/id/eprint/21351 |
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- The mass and the radius of the neutron star in the transient low mass X-ray binary SAX J1748.9−2021. (deposited 10 Jan 2013 12:13) [Currently Displayed]
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