Presupernova structure of massive stars
Presupernova structure of massive stars
复制标题
大质量恒星的前超新星结构
DOI：
10.1007/s10509-010-0591-8
复制
发表时间：
2010
影响因子：
1.9
通讯作者：
D. Arnett
中科院分区：
文献类型：
--
作者：
C. Meakin;T. Sukhbold;D. Arnett
讨论了核心塌缩前体星的结构和演化问题，以及恒星演化的一般问题，重点讨论了内部演化。我们讨论了一些最新的结果，这些结果解决了对现代恒星演化计算中固有的不确定性进行量化的问题，并描述了一项旨在研究与恒星湍流相关的输运和混合过程的研究工作，在核心崩溃时，除了质量损失，这可能是超新星前驱结构中最大的不确定性来源。我们强调了恒星参数的精确观测在约束理论模型方面的重要作用，以及从三维流体动力学模拟中可以获得的物理洞察力。
Issues concerning the structure and evolution of core collapse progenitor stars, and stellar evolution in general, are discussed with an emphasis on interior evolution. We discuss some recent results that address quantifying the uncertainties inherent in modern stellar evolution calculations, and we describe a research effort aimed at investigating the transport and mixing processes associated with stellar turbulence, which is arguably the greatest source of uncertainty in supernova progenitor structure, besides mass loss, at the time of core collapse. We highlight the important role played by precision observations of stellar parameters in constraining theoretical models, as well as the physical insight that can be garnered from three-dimensional hydrodynamic simulation.