Studies in Stellar Structure and Evolution

我们理解恒星演化的物理基础最终取决于恒星结构计算模型的成功与否。首席调查员(PI)致力于计算恒星模型，以了解恒星如何在时间上从“H-R图”上的一个位置演化到另一个位置。在过去的三年里，PI已经开始将他的专业知识扩展到双星的演化、富氢物质在白矮星上的吸积及其随后的引力沉降和混合、与时间有关的“缓慢”中子俘获核合成的计算等难题。PI的新工作的很大一部分将包括吸积和混合的流体动力学模拟。他将继续与藤本和他在日本的合作者进行积极的合作，将多维流体力学物理纳入他的模型内部计算机代码。预计这一结合将促进日本和美国天文学的更多理论专业知识。

The physical basis for our understanding of the stellar evolutionary is ultimately measured in the success of computational models of stellar structure. The Principal Investigator (PI) has devoted his career to computing models of stars that permit an understanding of how stars evolve in time from one position on the "H R Diagram" to another. In the last three years the PI has begun to extend his expertise to the difficult problems of the evolution of binary stars, the accretion of hydrogen-rich material onto white dwarfs and its subsequent gravitational settling and mixing, time- dependent computations of "slow" neutron-capture nucleosynthesis. A substantial part of the PI's new work will include hydrodynamical simulations of accretion and mixing. He will continue a vigorous collaboration with M. Fujimoto and his collaborators in Japan to include multi-dimensional hydrodynamical physics into his model interior computer codes. It is anticipated that this marriage will facilitate added theoretical expertise to both Japanese and U.S. astronomy.