Abstract
view Abstract Citations (49) References (31) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Mass and Radius of a Neutron Star in X-Ray Burster MXB 1636-536 Fujimoto, M. Y. ; Taam, R. E. Abstract The observational data of the X-ray burst source MXB 1636 - 536, obtained from the Tenma satellite, have been used to place constraints on the mass and radius of a neutron star. The results of theoretical models for the emergent spectral energy distribution for bursting neutron stars are combined with the transverse Doppler and gravitational redshift interpretation of the 4.1 keV absorption line. Under the assumption that the peak burst luminosity is limited to the Eddington value and that the absorption feature is formed in a region rotating at the Keplerian velocity, we find a neutron star mass and radius of 1.45 Msun and 10.3 km. If these two theoretical assumptions are satisfied to high accuracy (so that systematic errors are not large), then the formal errors in the analysis lead to a mass and radius range from 1.28 to 1.65 Msun and from 9.1 to 11.3 km, respectively. These neutron star properties are consistent with the Friedman and Pandharipande neutron and nuclear interaction model for the equation of state. Publication: The Astrophysical Journal Pub Date: June 1986 DOI: 10.1086/164244 Bibcode: 1986ApJ...305..246F Keywords: Neutron Stars; Stellar Mass; X Ray Sources; Absorption Spectra; Bursts; Doppler Effect; Hertzsprung-Russell Diagram; Line Spectra; Radiant Flux Density; Radii; Red Shift; Spectral Energy Distribution; Stellar Gravitation; Stellar Models; Stellar Rotation; Astrophysics; STARS: INDIVIDUAL ALPHANUMERIC: MXB 1636-536; STARS: NEUTRON; X-RAYS: BURSTS full text sources ADS | data products SIMBAD (1)
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