Infrared Studies of Transient Events: Classical Novae and Variable Stars

瞬变事件的红外研究：经典新星和变星

• 批准号: 9217959
• 负责人: Robert Gehrz
• 金额: $ 25.65万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217959&HistoricalAwards=false
• 关键词: Infrared; Studies; Transient; Events; Classical

Interstellar grains are thought to form, among other places, in circumstellar flows from novae and infrared variable stars. Such objects will be observed in the infrared to learn about the nucleation and growth of grains in these environments, assess the heavy element contributions to the interstellar medium from novae and infrared variable stars, and gain information on stages of stellar evolution preceding the mass loss. A network of three remotely controlled infrared telescopes in three different states will make it possible to begin observations promptly after a nova eruption is detected to determine the composition of the ejecta and to follow the development of dust in the ejecta. The infrared variables will be monitored to learn their characteristics and to study the changes in the inner dust shell throughout the pulsational cycle.

星际颗粒被认为是在新星和红外变星的星周流动中形成的。这类天体将在红外线中观测，以了解这些环境中颗粒的成核和生长，评估新星和红外变星对星际介质的重元素贡献，并获得关于质量损失前恒星演化阶段的信息。由三个处于三种不同状态的遥控红外望远镜组成的网络将使人们有可能在探测到新星喷发后立即开始观测，以确定抛射物的成分，并跟踪喷射物中尘埃的发展。红外变星将被监测，以了解它们的特征，并研究内部尘埃壳在整个脉动周期中的变化。