AI 中文总结
研究核心坍缩超新星爆炸机制，基于修正排斥体积方法开发新型状态方程，通过相对论平均场框架模拟超新星，发现突发状中微子信号更长，还进行引力波模式分析。
AI 中文摘要
本文批判性地回顾了与从普通核物质（通常为强子物质）到解禁夸克物质的足够强的一级相变相关的核心坍缩超新星爆炸机制，通常假定吉布斯相共存条件并相应构建相变。为此，基于修正排斥体积（MEV）方法开发了一类新型的多用途状态方程（EOS），该方法在相对论平均场框架内采用依赖于介质的排斥体积泛函以及依赖于密度的介子 - 核子耦合。所选的MEV参数化具有自由度数量的变化，模拟了超过核饱和密度时EOS的软化，具有类似范德瓦尔斯行为的一级相变以及高温下的临界点。基于球对称的广义相对论中微子辐射流体动力学进行了核心坍缩超新星模拟，以探索此类现象学修正微观强子EOS中先前报道的超新星爆炸情景。释放出一种突发状中微子信号，比基于具有两相方法和吉布斯相变构建的常见强子 - 夸克混合模型EOS先前报道得长得多，作为可观测信号，并辅以引力波模式分析。
英文摘要
This article reviews critically the core-collapse supernova explosion mechanism associated with a sufficiently strong first-order phase transition from normal nuclear, in general hadronic matter to deconfined quark matter, which commonly assumes Gibbs conditions for the coexistence of phases and a phase transition construction accordingly. To this end, a novel class of multi-purpose equation of state (EOS) is developed, based on the modified excluded volume (MEV) approach employing a medium-dependent excluded-volume functional within the relativistic mean field framework with density-dependent meson-nucleon couplings. The chosen MEV parametrisation features the change in the number of degrees of freedom, mimicking the EOS softening in excess of nuclear saturation density, featuring a first-order phase transition with van der Waals like behaviour and the presence of a critical point at high temperatures. Simulations of core-collapse supernovae are performed, based on general relativistic neutrino radiation hydrodynamics in spherical symmetry, in order to explore the previously reported supernova explosion scenario within this class of phenomenological modified microscopic hadronic EOS. A burst-like neutrino signature is released, substantially longer than previously reported based on common hadron-quark hybrid model EOS with two-phase approach and Gibbs phase-transition construction, as observable signal, which is complemented by a gravitational wave mode analysis.
Commentssubmitted in Classical and Quantum Gravity
