Study of tidal deformabilities of neutron stars usingrelativistic mean field theory containing ? mesons

被引：0

作者：

Bin, Diao ^{[1
,2
]}

Yan, Xu ^{[1
,2
]}

Huang, Xiu-Lin ^{[1
]}

Wang, Yi-Bo ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Observ, Natl Astron Observ, Changchun 130117, Peoples R China

[2] Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China

来源：

ACTA PHYSICA SINICA | 2023年 / 72卷 / 02期

关键词：

neutron star; meson; tidal deformabilities; NUCLEAR-MATTER; SYSTEM;

D O I：

10.7498/aps.72.20221599

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The research on the macroscopic properties of neutron stars is of great significance in revealing the internalcomposition and structure of neutron star. In this work, We analyze the influence of d mesons on the equationof states, the maximum mass, the tidal Love numbers and the tidal deformabilities for the conventional neutronstars and the hyperon stars within the relativistic mean field theory. It is found that the presence of d mesonscan strengthen the tidal deformabilities of the low and medium-mass conventional neutron stars (or hyperonstars). However, the strengthening trends of the tidal deformabilities with d mesons gradually weaken with theincrease of the mass of the conventional neutron stars (or hyperon stars). Especially for massive hyperon stars,the tidal deformabilities of the superstars with d mesons is weaker than the corresponding values without dmesons. Moreover, the presence of hyperons can reduce the tidal deformabilities of stars with the same mass.For the stars containing d mesons, only the tidal deformabilities in the hyperon stars with L, S and X hyperonscan satisfy the constraints of GW170817 and GW190814 events under the parameters selected in the paper. Asthe data about gravitational waves associated with the neutron stars gradually increase, there will be a possibleway of judging the hyperon species in the hyperon stars

引用

页数：9

共 51 条

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