Anisotropic strange stars in the spotlight: unveiling constraints through observational data

被引：17

作者：

Das, H. C. ^{[1
]}

Lopes, Luiz L. ^{[2
]}

机构：

[1] Inst Phys, Sachivalaya Marg, Bhubaneswar 751005, Odisha, India

[2] Ctr Fed Educ Tecnol Minas Gerais, Campus 8, BR-37022560 Varginha, MG, Brazil

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2023年 / 525卷 / 03期

关键词：

dense matter; equation of state; stars: neutron; STRONGLY MAGNETIZED NEUTRON; GENERAL-RELATIVITY; EQUILIBRIUM-MODELS; FIELDS; SPHERES; PHASE; MASS;

D O I：

10.1093/mnras/stad2554

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by the recent suggestions that very massive pulsar (PSR J0952-0607) and very light compact object (HESS J1731-347) exist, in this article, we revisit the possibility of such objects being strange stars instead of the standard hadronic neutron stars. We study the possible presence of local anisotropy and how it affects the macroscopic properties of strange stars and compare our results with the recent constraints presented in the literature. We found that the presence of anisotropy increases the maximum mass, the radius of the canonical star, and its tidal deformability for positive values of lambda(BL) and the opposite for negative values. We also show that although we cannot rule out the possibility of very compact objects being standard hadronic neutron stars, strange stars easily fulfill most of the observational constraints.

引用

页码：3571 / 3575

页数：5

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