SIMBAD references

1998ApJ...505L.135B - Astrophys. J., 505, L135-L137 (1998/October-1)

A firm upper limit to the radius of the neutron star in SAX J1808.4-3658.

BURDERI L. and KING A.R.

Abstract (from CDS):

We show that observations of X-ray pulsing from SAX J1808.4-3658 place a firm upper limit of 13.8m1/3 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 mass.

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Journal keyword(s): Accretion, Accretion Disks - Stars: Binaries: Close - Equation of State - Stars: Neutron - X-Rays: Stars

Simbad objects: 1

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