Physics
Scientific paper
Oct 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9213907a&link_type=abstract
Unknown
Physics
Equations Of State, Matter (Physics), Neutron Stars, Nucleons, Spin, Stellar Temperature, Temperature Effects, Mass, Radii
Scientific paper
A previous equation of state, deduced for thermal neutron matter with spin excess neutrons, is used to explore the effect of temperature and spin excess parameter on neutron star structure. The spin excess parameter is found to have a significant decreasing effect on the maximum mass of neutron stars, while it has an increasing effect on the central density of stable neutron stars. The behavior of neutron star radius, for stars with central density less than three times normal nuclear matter density, depends on the spin excess parameter in a significant way. For stars having larger central density the spin excess parameter has little decreasing effect on the star radius. The temperature is found to have little increasing effect on both the star mass and its radius. The equation of state used is very stiff, but the resulting maximum masses lie within the range of neutron stars masses deduced from X-ray binaries.
Abd-Alla M.
Hassan M. Y. M.
Ragab H. S.
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