Neutron stars in general relativity and scalar-tensor theory of gravity

被引：4

作者：

Fattoyev, Farrukh J. ^{[1
]}

机构：

[1] Manhattan Coll, Dept Phys, New York, NY 10471 USA

来源：

ARABIAN JOURNAL OF MATHEMATICS | 2019年 / 8卷 / 04期

关键词：

83C05; 83C35; 85A15; 53Z05; 83C99; 81V35; 83D05; 83C55; EQUATION-OF-STATE; NUCLEAR-EQUATION; MACHS PRINCIPLE; RADIUS; MATTER; MASS; DENSITY;

D O I：

10.1007/s40065-019-0265-5

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The masses and radii of neutron stars are discussed in general relativity and scalar-tensor theory of gravity and the differences are compared with the current uncertainties stemming from the nuclear equation of state in the relativistic mean-field framework. It is shown that astrophysical and gravitational wave observations of radii of neutron stars with masses M less than or similar to 1.4M circle dot\documentclass[12pt] constrain only the nuclear equation of state, and in particular the density dependence of the nuclear symmetry energy. Future observations of massive neutron stars may constrain the coupling parameters of the scalar-tensor theory provided that a general consensus on the dense nuclear matter equation of state is reached.

引用

页码：293 / 304

页数：12

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