In this work I study how the small contribution of the inner crust to the total equation of state (EoS) of a neutron star affects its mass-radius relation, focusing on the canonical mass of 1.4. I build a polytropic empirical EoS of the kind in the range of and also calculate the speed of sound in this region. We see that different behaviours of the speed of sound can affect the radius of the canonical star by more than 1.1 km. This result can help us understand extreme results as GW170817, where some studies indicate that the radius of the canonical star cannot exceed 11.9 km.

中文翻译：

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中子星内壳：经验论文

在这项工作中，我研究了内壳对中子星总状态方程 (EoS) 的微小贡献如何影响其质量半径关系，重点是 1.4 的规范质量。我在 范围内构建了一个多方经验 EoS，并计算了该区域的声速。我们看到，声速的不同行为可以影响标准星的半径超过 1.1 公里。这个结果可以帮助我们理解GW170817的极端结果，其中一些研究表明标准星的半径不能超过11.9公里。