Spectroscopic and Photometric Studies of Supernovae

超新星的光谱和光度研究

• 批准号: 9115174
• 负责人: Alexei Filippenko
• 金额: $ 16.98万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-12-01 至 1994-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9115174&HistoricalAwards=false
• 关键词: Spectroscopic; Photometric; Studies; Supernovae

The Principal Investigator (PI) is a previous Presidential Young Investigator who has used much of his previous award to design and build a robotic telescope to monitor the light output of supernovae with time. The PI now proposes to complement his light curve work with a coordinated program of high dispersion spectroscopy. His goal is to establish a far greater degree of homogenity in the classification of supernovae than has existed in the past in order to define the evolutionary histories of these objects, as will as the characteristics of their progenitor stars. This work will help determine the mass ranges of stars that are apt to lead to certain kinds of supernovae. It will provide new estimates of the dispersion of observable properties, such as luminosity, leading to a more confident use of supernovae as "standard candles" and to improved distances of external galaxies.

首席调查员（PI）是以前的总统年轻调查员，他以前的大部分奖项都使用了自己的大部分奖项来设计和建造机器人望远镜，以随着时间的推移监视超新星的光输出。 PI现在建议通过高色散光谱的协调计划来补充他的光曲线工作。 他的目标是在超新星的分类中建立比过去更大的同质性，以定义这些物体的进化历史，就像其祖细胞恒星的特征一样。 这项工作将有助于确定易于导致某些超新星的恒星的质量范围。 它将提供有关可观察性特性（例如光度）分散体的新估计，从而使超新星用作“标准蜡烛”并改善外部星系的距离。