Neutron star structure and the neutron radius of 208Pb

被引：785

作者：

Horowitz, CJ ^{[1
]}

Piekarewicz, J

机构：

[1] Indiana Univ, Ctr Nucl Theory, Bloomington, IN 47405 USA

[2] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[3] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.86.5647

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study relationships between the neutron-rich skin of a heavy nucleus and the properties of neutron-star crusts. Relativistic effective field theories with a thicker neutron skin in (208)pb have a larger electron fraction and a lower liquid-to-solid transition density for neutron-rich matter. These properties are determined by the density dependence of the symmetry energy which we vary by adding nonlinear couplings between isoscalar and isovector mesons. An accurate measurement of the neutron radius in Pb-208-via parity violating electron scattering-may have important implications for the structure of the crust of neutron stars.

引用

页码：5647 / 5650

页数：4

共 50 条

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