Studies in Stellar Structure and Evolution

恒星结构与演化研究

• 批准号: 9113662
• 负责人: Icko Iben
• 金额: $ 36.75万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-12-15 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9113662&HistoricalAwards=false
• 关键词: Studies; Stellar; Structure; Evolution

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.

我们理解恒星的物理基础 进化的最终衡量标准是计算的成功 恒星结构模型 主要研究者（PI） 他的职业生涯致力于计算恒星模型， 了解恒星是如何从地球上的一个位置 “H R图”到另一个。 在过去的三年里，PI已经开始 将他的专业知识扩展到进化的难题上， 富含氢的物质在白色上的吸积 矮星及其随后的重力沉降和混合，时间- “慢”中子俘获核合成的相关计算。 PI的新工作的很大一部分将包括流体动力学 吸积和混合的模拟。 他将继续一个充满活力的 与M合作。藤本和他在日本的合作者， 包括多维流体力学物理学 内部计算机代码 预计这场婚姻将 为日本和美国提供更多的理论知识。 天文学