Mass of compact stars in f(T) gravity

被引：5

作者：

de Araujo, J. C. N. ^{[1
]}

Fortes, H. G. M. ^{[2
]}

机构：

[1] Inst Nacl Pesquisas Espaciais, Div Astrofis, Ave Astronautas 1758, BR-12227010 Sao Jose Dos Campos, SP, Brazil

[2] Univ Fed Juiz Fora, Campus Univ,Rua Jose Lourenco Kelmer,S-N-Sao Pedro, BR-36036900 Juiz De Fora, MG, Brazil

来源：

EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

Asymptotics - Compact objects - Compact stars - Equation-of-state - General Relativity;

D O I：

10.1140/epjc/s10052-023-11525-8

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The mass of compact objects in General Relativity (GR), which as is well known, is obtained via the Tolman-Oppenheimer-Volkov (TOV) equations, is a well defined quantity. However, in alternative gravity, this is not in general the case. In the particular case of f(T) gravity, where T is the scalar torsion, some authors consider that this is still an open question, since it is not guaranteed that the same equation used in TOV GR holds. In this paper we consider such an important issue and compare different ways to calculate the mass of compact objects in f(T) gravity. In particular, we argue that one of them, the asymptotic mass, may be the most appropriate way to calculate mass in this theory. We adopt realistic equations of state in all the models presented in this article.

引用

页数：9