CAREER: Improved Stellar Models and Globular Cluster Age Estimates

查博耶博士将实施一项研究和教育计划，重点是通过开发和分发改进的恒星模型和等时线来研究恒星演化。他的研究计划涉及两个大致界定的领域。首先，他计划为年龄大于1 Gyr的恒星系统构建改进的恒星模型和等时线。这些模型将结合我们对旋转、混合和对流的理解的进步。他将综合运用日光地震学和天文地震学、轻元素锂、铍和硼的丰度，以及球状星团的光度函数来应用和测试这些模型。在第二个研究领域，他将应用这些模型来得出最古老球状星团的新年龄估计，调查距离尺度和模型本身的不确定性的影响，并对所涉及的误差进行详细的蒙特卡洛研究。他将通过开发计算机动画视频和基于网络的恒星结构计算方法，将大部分研究活动带给学生和公众，并将使用这些工具来开发入门天文学实验室。

Dr. Chaboyer will carry out a program of research and education that focuses on studies of stellar evolution through the development and distribution of improved stellar models and isochrones. His research plan involves two broadly defined areas. First, he plans to construct improved stellar models and isochrones for stellar systems with ages greater than 1 Gyr. These models will incorporate advances in our understanding of rotation, mixing, and convection. He will apply and test these models using a combination of helio- and astro-seismology, abundances of the light elements lithium, beryllium and boron, and luminosity functions of globular clusters. In a second area of research, he will apply these models to arrive at new estimates of ages for the oldest globular clusters, investigating the effects of the uncertainties in the distance scale and the models themselves, and carrying out a detailed Monte Carlo study of the errors involved. He will bring much of this research activity to students and the public by developing computer animated videos and web-based access to the stellar structure calculations and will use these tools to develop introductory astronomy labs.