RUI: An Observational Exploration of the Late Stages of Close Binary Star Evolution in Low to Intermediate Mass Stars

RUI：中低质量恒星闭合双星演化后期的观测探索

• 批准号: 1109683
• 负责人: Todd Hillwig
• 金额: $ 21.23万
• 依托单位: Valparaiso University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1109683&HistoricalAwards=false
• 关键词: RUI; Observational; Exploration; Late; Stages

This award will support an observational study of binarity in the central stars of planetary nebulae. This stage of stellar evolution represents the penultimate phase of evolution for low- and intermediate mass stars, and very little is known about the evolution of binary stars during this stage. Close binaries are expected to evolve further into merging or mass-transfer systems, which would then manifest themselves as cataclysmic variables; they could also be the precursor systems to Type Ia supernovae. The project will involve a combination of multi-color photometry and spectroscopy with the aim of discovering new binary stars in planetary nebulae and characterizing some in detail.It is expected that the project may have a significant scientific impact on the areas of supernova research, cataclysmic variables, and novae. It will also contribute to the development and training of students at a primarily undergraduate institution.

该奖项将支持对行星状星云中心恒星的双星现象的观测研究。恒星演化的这个阶段代表着低质量和中等质量恒星演化的倒数第二个阶段，对这一阶段的双星演化知之甚少。接近的双星预计将进一步演化为合并或质量转移系统，然后表现为激变变星；它们也可能是Ia型超新星的前驱系统。该项目将涉及多色光度和光谱学的结合，目的是在行星状星云中发现新的双星并详细描述其中一些。预计该项目可能对超新星研究、激变变星和新星领域产生重大的科学影响。它还将有助于在一个主要是本科院校的学生的发展和培训。