Infrared Spectroscopy of Cataclysmic Variables: Using the Peculiar Surface Abundance Patterns Found in their Secondary Stars to Trace their Evolutionary History

哈里森，托马斯：《激变变星的红外光谱：利用次级恒星中发现的特殊表面丰度模式来追踪它们的演化历史》AST-9986823DR。哈里森将对激变变星进行首批大规模红外光谱测量之一。该项目的主要目标将是调查这些快速演化系统的次级恒星中碳的化学丰度和同位素比率。观测到的光谱将与现有的演化和未演化恒星模型进行比较，以确定当前的演化状态并追踪每个系统的历史。观测工作将在基特峰国家天文台的设施中进行。该项目的资金由美国国家科学基金会恒星天文与天体物理计划(AST/SAA)提供。

ABSTRACTHarrison, Thomas"Infrared Spectroscopy of Cataclysmic Variables: Using the Peculiar Surface Abundance Patterns Found in Secondary Stars to Trace Their Evolutionary History"AST-9986823Dr. Harrison will undertake one of the first large-scale infrared spectroscopic surveys of cataclysmic variable stars. The primary goal of the project will be to investigate the chemical abundances and isotopic ratios of carbon in the secondary stars of these rapidly evolving systems. The observed spectra will be compared to existing models for evolved and unevolved stars to determine the current evolutionary state and trace the history of each system. The observational effort will be conducted with the facilities at Kitt Peak National Observatory.Funding for this project was provided by the NSF program for Stellar Astronomy & Astrophysics (AST/SAA).