Excluded volume effects on cold neutron star phenomenology

IF 1.7 4区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Physics A Pub Date : 2024-07-10 DOI:10.1016/j.nuclphysa.2024.122928

Jesper Leong , Anthony W. Thomas , Pierre A.M. Guichon

引用次数: 0

Abstract

Observable properties of neutron stars are studied within a hadronic equation of state derived from the quark level. The effect of short-range repulsion is incorporated within the excluded volume framework. It is found that one can sustain neutron stars with masses as large as 2.2 $M_{⊙}$ even including hyperons in β equilibrium, while producing radii and tidal deformabilities consistent with current constraints.

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冷中子星现象学的排除体积效应

在从夸克水平导出的强子状态方程中研究了中子星的可观测特性。短程斥力的影响被纳入了排除体积框架。研究发现，我们可以维持质量高达 2.2M⊙ 的中子星，甚至包括处于 β 平衡的超子，同时产生与当前约束相一致的半径和潮汐变形。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Physics A 物理-物理：核物理

CiteScore

3.60

自引率

7.10%

发文量

113

审稿时长

61 days

期刊介绍： Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.