利用质量-半径关系和分段多向态方程探测中子星内部

IF 1.4 Q2 Physics and Astronomy

Physics Open Pub Date : 2025-08-20 DOI:10.1016/j.physo.2025.100311

B. Bringen , D.P. Girma , D.D. Bakwa , E.K. Makama

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引用次数: 0

摘要

我们提出了一种结合分段多向状态方程和质量半径约束的中子星内部探测的新框架。求解跨密度域的TOV方程，生成质量半径曲线，并将其与NICER和引力波数据进行比较。我们的分析强调了不同的多向性段如何影响中子星的性质，特别是在1.4 - 3.5M⊙范围内。这种方法限制了超核密度下的压力-密度关系，并提出了潜在的奇异物质相。结果一致，并使得对即将到来的观测的更精确的解释，推进中子星作为极端密度物理的探测器。

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Probing neutron star interiors through mass-radius relations and the equation of state using piecewise polytrope

We present a novel framework for probing neutron star interiors by combining piecewise polytropic equations of state with mass-radius constraints. Solving the TOV equations across density regimes, we generate mass-radius curves and compare them with NICER and gravitational wave data. Our analysis highlights how different polytropic segments influence neutron star properties, particularly within the

1.4 - 3.5 M_{⊙}

range. This approach constrains the pressure-density relation at supranuclear densities and suggests potential exotic matter phases. The results agree and enable more precise interpretation of forthcoming observations, advancing neutron stars as probes of extreme-density physics.

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来源期刊

Physics Open Physics and Astronomy-Physics and Astronomy (all)

CiteScore

3.20

自引率

0.00%

发文量

审稿时长

9 weeks