Protoneutron star in the relativistic mean-field theory

被引：4

作者：

Manka, R ^{[1
]}

Zastawny-Kubica, M ^{[1
]}

Brzezina, A ^{[1
]}

Bednarek, I ^{[1
]}

机构：

[1] Silesian Univ, Inst Phys, Dept Astrophys & Cosmol, PL-40007 Katowice, Poland

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2001年 / 27卷 / 09期

关键词：

D O I：

10.1088/0954-3899/27/9/304

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In this paper the basic properties of non-rotating 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 TMI parameter set extended to the finite-temperature case is used to obtain the mass-radius relation for protoneutron stars. The occurrence of unstable branches in the mass-radius relation are presented. This allows for the existence of distinctively different evolution tracks for protoneutron stars. The low-density protoneutron star configurations are estimated. The stable configurations obtained for fixed lepton number Y(L) = 0.4 are compared with those obtained for fixed proton fraction Y(P) = 0.1776.

引用

页码：1917 / 1938

页数：22

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