论文标题
对中子恒星冷却的短程相关效应
Short-range correlation effects on the neutron star cooling
论文作者
论文摘要
一段时间以来，已知短距离相关性（SRC）是核理论的重要方面。最近的作品重新引起了人们对该主题的兴趣，特别是由于最近证明SRC可能负责打破核物质的配对差距。在这项工作中，我们重新审视了中子恒星中Beta平衡物质的SRC概念。我们构建了两个等效模型，具有和没有SRC，并开始研究此类模型描述的恒星的热演化。我们表明，SRC在中子星的热演化中起主要作用。将显示，尽管SRC在很大程度上使恒星的宏观特性未经演示，但它显着改变了质子的分数，因此导致直接URCA（DU）过程的早期发作，这反过来导致恒星表现出更快的冷却。
Short range correlations (SRC) have been known to be an important aspect of nuclear theory for some time. Recent works have re-ignited interest on this topic, particularly due to the fact that it has recently been demonstrated that SRC may be responsible for breaking pairing gaps in nuclear matter. In this work we revisit the concept of SRC for beta equilibrated matter in neutron stars. We construct two equivalent models, with and without SRC and proceed to investigate the thermal evolution of stars described by such models. We show that SRC play a major role in the thermal evolution of neutron stars. It will be shown that while the SRC largely leaves the macroscopic properties of the star unaltered, it significantly alters the proton fraction, thus leading to an early onset of the direct Urca (DU) process, which in turns leads to stars exhibiting much faster cooling.
