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含暗物质中子星性质参量的普适关系研究

Study on the Universal Relation Between the Properties of Dark Matter Admixed Neutron Stars

  • 摘要: 含暗物质中子星是指物质组成中包含了暗物质的中子星。在本文中,我们主要研究了含暗物质中子星性质参量的普适性关系。研究结果表明:与普通中子星结果类似,含暗物质中子星的相关性质参量之间也存在着普适性关系;暗物质粒子质量和含暗物质质量比例的改变会使含暗物质中子星与普通中子星产生观测上的可区分效应;潮汐形变参数Λ与无量纲引力结合能Eg/M、无量纲转动惯量I/M3之间存在指数形式的普适性关系。

     

    Abstract: Dark matter admixed neutron stars are neutron stars that contain dark matter in their composition. In this paper, we mainly study the universal relation between the properties of Dark matter admixed neutron stars. The results show that similar to the results of normal neutron stars, there is also a universal relation between the relevant properties of dark matter admixed neutron stars. The change of the particles mass and the mass ratio of dark matter will cause the observed distinguishable effect between Dark matter admixed neutron stars and normal neutron stars. There exists exponential form of universal relations between the tidal deformability Λ, dimensionless gravitational binding energy Eg/M and the dimensionless moment of inertia I/M3.

     

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