Massive Stellar Evolution, Supernovae, and Nucleosynthesis

伍斯利博士将继续他的研究项目，研究化学元素的起源和演化，大质量恒星的演化，以及超新星爆炸的机制和结果。他将对他的恒星演化模型做一些改进，包括更新不透明度和核反应速率，改进核反应网络，结合质量损失和旋转的影响，以及对对流和混合的更彻底的处理。有了这些改进的模型结果，他将探索超新星爆炸特性对前超新星模型的敏感性。他还将研究简并白矮星中火焰传播和爆炸的物理学，以更好地了解Ia型超新星。在所有情况下，他将确定详细的核合成，以继续了解元素的起源和进化的目标。这一系列研究直接应用于许多相关的研究领域，如星系化学演化、宇宙距离尺度、伽马射线天文学、陨石中的同位素异常和粒子天体物理学。＊＊＊

Woosley, Stanford AST 97-31569 Dr. Woosley will continue his program of research into the origin and evolution of chemical elements, the evolution of massive stars, and the mechanisms and outcome of supernovae explosions. He will make a number of improvements to his stellar evolution model, including updated opacities and nuclear reaction rates, improved nuclear reaction networks, the incorporation of effects of mass loss and rotation, and a more thorough treatment of convection and mixing. With these improved model results he will explore the sensitivities of the supernovae explosion properties to the pre-supernova model. He also will study the physics of flame propagation and detonation in degenerate white dwarf stars to develop a better understanding of Type Ia supernovae. In all cases, he will determine the detailed nucleosynthesis, with the continued goal of understanding the origin and evolution of the elements. This suite of investigations has direct application to many related areas of research, such as galactic chemical evolution, the distance scale in the universe, gamma-ray astronomy, isotopic anomalies in meteorites, and particle astrophysics. ***