Low Energy Nuclear Reactions in Late Stellar Evolution

恒星演化晚期的低能核反应

• 批准号: 0099403
• 负责人: Michael Wiescher
• 金额: $ 15万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-15 至 2003-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0099403&HistoricalAwards=false
• 关键词: Low; Energy; Nuclear; Reactions; Late

The project is concerned with the study and simulation of low energynuclear reactions during the post-main sequence phase of stellarevolution. The particular goal is the measurement of helium burningdirection in Red Giant stars and hydrogen and helium burning processes inAsymptotic Giant (AGB) stars. This information is necessary for theinterpretation of observational data on isotopic and elemental abundancedistribution in the atmospheres of Red Giants and in the planetary nebulaesurrounding AGB stars. The determination of these processes is not onlyimportant for the understanding of nucleosynthesis mechanisms but also forthe interpretation of fast dredge-up and convection processes in theseThe experiments are performed at the Notre Dame low energy KN acceleratorwhich is dedicated for nuclear astrophysics measurements.

该项目涉及恒星演化后主序阶段低能核反应的研究和模拟。具体目标是测量红巨星中氦的燃烧方向和渐近巨星（AGB）中氢和氦的燃烧过程。这一信息对于解释红巨星和围绕AGB恒星的行星状星云大气中同位素和元素丰度分布的观测数据是必要的。这些过程的确定不仅对理解核合成机制很重要，而且对解释这些过程中的快速清流和对流过程也很重要。实验是在巴黎圣母院低能千牛顿加速器上进行的，该加速器专门用于核天体物理测量。