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Numerical study of stellar core collapse and neutrino emission using the nuclear equation of state obtained by the variational method
Publications of the Astronomical Society of Japan ( IF 2.3 ) Pub Date : 2021-04-03 , DOI: 10.1093/pasj/psab026
Ken’ichiro Nakazato 1 , Kohsuke Sumiyoshi 2 , Hajime Togashi 3
Affiliation  

Core-collapse simulations of massive stars are performed using the equation of state (EOS) based on the microscopic variational calculation with realistic nuclear forces. Progenitor models with initial masses of 15, 9.6, and 30 $M$⊙ are adopted as examples of an ordinary core-collapse supernova with a shock stall, a low-mass supernova with a successful explosion, and black hole formation, respectively. Moreover, the neutrinos emitted from the stellar collapse are assessed. The variational EOS is confirmed to work well in all cases. The EOS dependencies of the dynamics, thermal structure, and neutrino emission of the stellar collapse are also investigated.

中文翻译:

利用变分法获得的核状态方程对恒星核心坍塌和中微子发射的数值研究

大质量恒星的核心坍缩模拟是使用基于微观变分计算的状态方程(EOS)和真实的核力进行的。分别采用初始质量为 15、9.6 和 30 $M$⊙ 的前身模型作为具有激波失速的普通核心坍缩超新星、成功爆炸的低质量超新星和黑洞形成的示例。此外,还评估了恒星坍缩释放的中微子。确认变分 EOS 在所有情况下都能正常工作。还研究了恒星坍缩的动力学、热结构和中微子发射的 EOS 依赖性。
更新日期:2021-04-03
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