PROPERTIES OF NEUTRON-STARS IN THE RELATIVISTIC MEAN-FIELD THEORY

We study the properties of dense matter in neutron stars and calculate the structure of the stars based on the Zimanyi & Moszkowski (ZM) mod el in the relativistic mean-held theory. We also compare these results with those based on the Boguta & Bodmer (BB) model. with a recent sat isfactory parameter set. The two models satisfy the requirements from the observations of the masses of binary radio pulsars, the rotation f requencies of millisecond pulsars, the redshifts of the e(+) annihilat ion lines of some gamma-ray bursts if they are neutron stars, and the crustal moment of inertia of neutron stars deduced from the glitch eve nts. Other observations may provide a way to discriminate between the two models. We suggest that the most important observational discrimin ant between these two models is found by observing the surface radiati on of neutron stars, since the BE model leads to a large photon fracti on of neutron star matter and rapid cooling of neutron stars, but the ZM model does not.