Equation of State in the σ-ω-ρ Model Supported by the Observational Data of 4U 1608-52 Neutron Star

• 作者: 文德华
• 来源期刊: 中国物理快报(英文版)
• 学科: 地球科学
• 关键词: 状态方程 中子星 模型 观测数据 佳能EOS 观测质量 相对论 核物质
• 年，卷（期）: 2010,（1）
• 页码范围: 45-47
• 页数: 3页
• 分类号: P145.6 TQ013.1
• 语种: 英文

摘要

The properties of the neutron star rotating at 619Hz (which is the spin frequency of 4U 1608-52 neutron star) are investigated by using an equation of state (EOS) of the nuclear matter in the relativistic σ-ω-ρ model. It is shown that the EOS in the relativistic σ-ω-ρ model is supported by the observational mass and radius of the 4U 1608-52 neutron star. Moreover, astrict constraint on the polar redshift of 4U 1608-52 neutron star is obtained.