应用于原中子星产生的引力波的通用关系：来自三维核心坍缩超新星模拟
Universal relations applied to proto-neutron star generated gravitational waves from three-dimensional core collapse supernova simulations
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中文总结 AI 辅助
研究将外部开发的通用关系应用于二维和三维CCSN模拟生成的PNS演化数据，比较通用关系预测的PNS振荡频率与模拟的引力波峰值频率等，展示其对PNS属性及演化的预测，表明使用时要谨慎，进一步发展通用关系有益。
中文摘要 AI 辅助
利用星震学技术，已开发出几种关系，将原中子星（PNS）的准正常、非径向振荡模式频率与核心坍缩超新星（CCSN）模拟预测的引力波高频分量联系起来。这些关系具有通用性，完全由PNS属性（如平均密度或表面重力）参数化，与前身星属性（如零龄主序星质量或金属丰度）和CCSN模拟中包含的物理（如核状态方程）无关。在这项工作中，我们将几种外部开发的通用关系应用于二维和三维CCSN模拟生成的PNS演化数据（具体为质量M和半径R），比较通用关系预测的PNS振荡频率与直接从模拟产生的频谱图计算出的引力波峰值频率。此外，我们将引力波频谱图峰值频率作为通用关系的输入，比较每个关系预测的PNS属性与模拟确定的真实PNS属性。通过这种方式，我们展示了在最佳情况下（即无探测器噪声），这些通用关系对PNS属性及其从真实CCSN引力波探测中的演化的预测。我们的结果表明，使用这些通用关系时必须谨慎，特别是在解释它们对引力波探测中PNS演化的预测时，并且鉴于我们确实看到星震学预测与模拟结果之间的一致性程度，通用关系的进一步发展将是有益的。
英文摘要
Using asteroseismology techniques, several relations have been developed that relate the quasi-normal, non-radial oscillation mode frequencies of the proto-neutron star (PNS) to the high frequency component of core collapse supernova (CCSN) generated gravitational waves predicted from simulation. These relations are universal in the sense that they are parameterized entirely by PNS properties, e.g., mean density or surface gravity, and are independent of both progenitor properties, e.g., zero age man sequence (ZAMS) mass or metallicity, and the physics included in CCSN simulations, e.g., nuclear equation of state (EOS). In this work, we apply several externally developed universal relations to PNS evolution data--specifically the mass, M, and radius, R,--generated from both two- and three-dimensional CCSN simulations and compare the resulting PNS oscillation frequencies predicted by the universal relations to the peak gravitational wave frequencies computed directly from the simulation-produced spectrogram. Additionally, we use the gravitational wave spectrogram peak frequencies as input to the universal relations and compare the predicted PNS properties from each relation to the true PNS properties as determined by the simulations. In this way, we show what these universal relations would predict for the PNS properties and their evolution from a real CCSN gravitational wave detection in the best case scenario, i.e., no detector noise. Our results indicate that caution must be exercised when using these universal relations, particularly when interpreting their predictions for PNS evolution from a gravitational wave detection, and that, given the extent to which we do see agreement between asteroseismological predictions and simulation outcomes, further development of universal relations would be beneficial.
