Protoneutron star in the Relativistic Mean - Field Theory

Details Protoneutron star in the Relativistic Mean - Field Theory Protoneutron star in the Relativistic Mean - Field Theory

2000-12-05

arxiv.org/abs/astro-ph/0012088v1

Astronomy and Astrophysics

Astrophysics

21 pages, iop latex2e, 18 colour figures, submitted to Journal of Physics G: Nuclear and Particle

Scientific paper

10.1088/0954-3899/27/9/304

In this review the basic properties of nonrotating and slowly rotating protoneutron stars in the relativistic mean-field approach are discussed. The equation of state is the main input to the structure equations. The TM1 parameter set extended to the case of finite temperature is used to obtain the mass-radius relation for protoneutron stars. The occurrence of unstable areas in the mass-radius relation are presented. This allows for the existence of distinctively different evolutionary of tracks of the protoneutron stars. The low density protoneutron star configurations are estimated. The obtained stable configurations for the fixed lepton number Y_L=0.4 are compared with ones obtained for the fixed proton fraction Y_P=0.1776.

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