Toward Realistic Models of Core Collapse Supernovae: A Brief Review
Toward Realistic Models of Core Collapse Supernovae: A Brief Review
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DOI：
10.1017/s1743921322001831
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发表时间：
2020-06
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影响因子：
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通讯作者：
A. Mezzacappa
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作者：
A. Mezzacappa
由于它们是宇宙中许多元素的直接或间接来源，核心坍缩超新星的数值模拟始于五十多年前。随着物理和维度的增加，随着物理和数值建模的改进，以及建模者可用的主要计算资源变得更加强大，通过越来越复杂的模型，在确定爆炸机制方面取得了进展。在过去的五到十年里，核心坍缩超新星建模社区出现了一个共识，这在四十年前是不存在的。对于大多数祖细胞-即，缓慢旋转的前体-延迟激波机制的效力，即停滞的超新星激波通过原中子星星发出的中微子加热而复活，已被所有核心坍缩超新星建模小组在前体质量和金属丰度方面证明。有了这种势头，再加上现在对这些事件的动态有了更深入的了解，前进的道路是明确的。虽然已经取得了很大的进展，但仍有许多工作要做，但在这个时候，我们有充分的理由感到乐观，我们正在回答天体物理学中最重要的悬而未决的问题之一：大质量恒星如何结束自己的生命？
Abstract Motivated by their role as the direct or indirect source of many of the elements in the Universe, numerical modeling of core collapse supernovae began more than five decades ago. Progress toward ascertaining the explosion mechanism(s) has been realized through increasingly sophisticated models, as physics and dimensionality have been added, as physics and numerical modeling have improved, and as the leading computational resources available to modelers have become far more capable. The past five to ten years have witnessed the emergence of a consensus across the core collapse supernova modeling community that had not existed in the four decades prior. For the majority of progenitors – i.e., slowly rotating progenitors – the efficacy of the delayed shock mechanism, where the stalled supernova shock wave is revived by neutrino heating by neutrinos emanating from the proto-neutron star, has been demonstrated by all core collapse supernova modeling groups, across progenitor mass and metallicity. With this momentum, and now with a far deeper understanding of the dynamics of these events, the path forward is clear. While much progress has been made, much work remains to be done, but at this time we have every reason to be optimistic we are on track to answer one of the most important outstanding questions in astrophysics: How do massive stars end their lives?