Numerical study of stellar core collapse and neutrino emission using the nuclear equation of state obtained by the variational method
Numerical study of stellar core collapse and neutrino emission using the nuclear equation of state obtained by the variational method
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DOI：
10.1093/pasj/psab026
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发表时间：
2021-03
期刊：
影响因子：
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通讯作者：
K. Nakazato;K. Sumiyoshi;H. Togashi
中科院分区：
文献类型：
--
作者：
K. Nakazato;K. Sumiyoshi;H. Togashi
大质量恒星的核心塌缩模拟是使用基于真实核力微观变分计算的状态方程（EOS）进行的。初始质量为15M⊙、9.6M⊙和30M⊙的前身模型分别作为激波失速的普通核心塌陷超新星、成功爆炸的低质量超新星和黑洞形成的例子。此外，还评估了恒星塌缩发出的中微子。然后，变分 EOS 被证实在所有情况下都能很好地工作。还研究了恒星塌缩的动力学、热结构和中微子发射的 EOS 依赖性。
Core-collapse simulations of massive stars are performed using the equation of state (EOS) based on the microscopic variational calculation with realistic nuclear forces. The progenitor models with the initial masses of 15M⊙, 9.6M⊙, and 30M⊙ are adopted as examples of the ordinary core-collapse supernova with a shock stall, the low-mass supernova with a successful explosion, and the black hole formation, respectively. Moreover, the neutrinos emitted from the stellar collapse are assessed. Then, the variational EOS is confirmed to work well in all cases. The EOS dependences of the dynamics, thermal structure, and neutrino emission of the stellar collapse are also investigated.