Massive neutron stars with antikaon condensates in a density-dependent hadron field theory

被引：32

作者：

Char, Prasanta ^{[1
]}

Banik, Sarmistha ^{[2
]}

机构：

[1] Saha Inst Nucl Phys, Astroparticle Phys & Cosmol Div, Kolkata 700064, India

[2] BITS Pilani, Hyderabad 500078, Andhra Pradesh, India

来源：

PHYSICAL REVIEW C | 2014年 / 90卷 / 01期

关键词：

PULSAR; MATTER;

D O I：

10.1103/PhysRevC.90.015801

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：

The measurement of 1.97 +/- 0.04M(solar) for PSR J1614-2230 and 2.01 +/- 0.04M(solar) for PSR J0348 + 0432 puts a strong constraint on the neutron star equation of state and its exotic composition at higher densities. In this paper, we investigate the possibility of an exotic equation of state within the observational mass constraint of 2M(solar) in the framework of relativistic mean field model with density-dependent couplings. We particularly study the effect of antikaon condensates in the presence of hyperons on the mass-radius relationship of the neutron star.

引用

页数：9