A Firm Upper Limit to the Radius of the Neutron Star in SAX J1808.4−3658
- 1 October 1998
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 505 (2) , L135-L137
- https://doi.org/10.1086/311611
Abstract
We show that observations of X-ray pulsing from SAX J1808.4-3658 place a firm upper limit of 13.8m(1/3) km on the radius of the neutron star, where m is its mass in solar units. The Limit is independent of distance, or assumptions about the magnetospheric geometry, and could be significantly tightened by observations of the pulsations in the near future. We discuss the implications for the equation of state and the possible neutron star massKeywords
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This publication has 7 references indexed in Scilit:
- Supernova Kicks, Magnetic Braking, and Neutron Star BinariesThe Astrophysical Journal, 1998
- Temporal Analysis of EXO 0531−66 in OutburstThe Astrophysical Journal, 1998
- The Formation of Low‐Mass Transient X‐Ray BinariesThe Astrophysical Journal, 1997
- Magnetohydrodynamics in Binary StarsPublished by Springer Nature ,1997
- On the specta of X-ray bursters: Expansion and contraction stagesThe Astrophysical Journal, 1994
- Rapidly rotating neutron stars in general relativity: Realistic equations of stateThe Astrophysical Journal, 1994
- Bimodal quasi-oscillatory and spectral behavior in Scorpius X-1The Astrophysical Journal, 1986