论文标题
研究中子恒星物质的扩展$σ$ - $ω$型号的参数
Studying the parameters of the extended $σ$-$ω$ model for neutron star matter
论文作者
论文摘要
在这项工作中，我们通过贝叶斯对最先进的多门体天文学观测的贝叶斯分析，即质量，半径和潮汐变形，研究了中子星物质的扩展$σ$ -CH $ω$模型的参数。我们已经考虑了该模型的三个参数，即Landau Mass $ M_L $，核压$ K_0 $和对称能源$ S_0 $的值，所有这些$ s_0 $，all ast Atatration Longione $ n_0 $。 结果，我们能够估计f $ m_l = 739 \ pm17 $ mev的兰道质量的值，而$ k_0 $和$ s_0 $的值属于已经知道的经验值。此外，对于中子星，我们发现最可能的值为13 km $ <r_ {1.4} <$ 13.5 km，$ m_ {max} \大约2.2 $ m $ _ {\ odot} $的质量上限为$ 13.5 km。
In this work we study the parameters of the extended $σ$-$ω$ model for neutron star matter by a Bayesian analysis on state-of-the-art multi-messenger astronomy observations, namely mass, radius and tidal deformabilities. We have considered three parameters of the model, the Landau mass $m_L$, the nuclear compressibility $K_0$, and the value of the symmetry energy $S_0$, all at saturation density $n_0$. As a result, we are able to estimate the values of the Landau mass of f $m_L = 739\pm17$ MeV, whereas the values of $K_0$ and $S_0$ fall within already known empirical values. Furthermore, for neutron stars we find the most probable value of 13 km $<R_{1.4}<$ 13.5 km and the upper mass limit of $M_{max} \approx 2.2$ M$_{\odot}$.
