论文标题

带有重型重子和普遍关系的原始中子星星

Proto-neutron stars with heavy baryons and universal relations

论文作者

Raduta, Adriana R., Oertel, Micaela, Sedrakian, Armen

论文摘要

我们使用协方差密度函数理论在非零温度下在紧凑型恒星中获得物质的状态方程(EOS),包括完整的baryon八位位和$δ(1232)$共振状态。 Hot $δ$ ADMIXED超核星的全球属性是针对每个BARYON($ S/A $)和Lepton分数($ Y_L $)的固定值计算的。建立了与$ s/a $ $ y_l $的固定恒星的惯性矩,四极力矩,潮汐变形性和紧凑型恒星紧凑性之间的普遍关系,这些固定值类似于与冷催化的紧凑型恒星相似的。我们还验证了$ i $ -love- $ Q $关系在有限温度下以$ s/a $和$ y_l $的恒定值保持。

We use covariant density functional theory to obtain the equation of state (EoS) of matter in compact stars at non-zero temperature, including the full baryon octet as well as the $Δ(1232)$ resonance states. Global properties of hot $Δ$-admixed hypernuclear stars are computed for fixed values of entropy per baryon ($S/A$) and lepton fraction ($Y_L$). Universal relations between the moment of inertia, quadrupole moment, tidal deformability, and compactness of compact stars are established for fixed values of $S/A$ and $Y_L$ that are analogous to those known for cold catalyzed compact stars. We also verify that the $I$-Love-$Q$ relations hold at finite temperature for constant values of $S/A$ and $Y_L$.

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