Observations and Theory of Supernovae

超新星的观测和理论

• 批准号: 1109801
• 负责人: John Wheeler
• 金额: $ 55.12万
• 依托单位: University of Texas at Austin
• 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: 2011-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1109801&HistoricalAwards=false
• 关键词: Observations; Theory; Supernovae

This award will support a combined theoretical and observational program to study supernovae, which are the explosive events accompanying the death of massive stars. The particular focus of this project is a new class of hyperluminous supernovae, of which five are known. There are currently several possibilities for the sources of these supernovae, including massive pair-instability supernovae or the interaction of the explosion with a dense circumstellar shell. Dr. Wheeler and his group will develop new techniques to fit models of the evolution of supernova brightness with time in order to learn about mass loss from the progenitor stars. They will also explore Type Ia supernovae with optical spectroscopy and spectropolarimetry in order to understand progenitor evolution, the physics of the explosions, and the use of supernovae for accurate cosmological measurements.This research is expected to have a broad scientific impact in the areas of stellar evolution, galactic evolution, and cosmology, and will contribute to the Nation's scientific future by integrating research and education by training graduate students and postdoctoral fellows. Dr. Wheeler will also continue his efforts to communicate scientific results to the public.

该奖项将支持一个合并的理论和观察计划来研究超新星，这是伴随大型恒星死亡的爆炸性事件。 该项目的特殊重点是一类新的疲惫的超新星，其中五个是已知的。 目前，这些超新星的来源有几种可能性，包括巨大的配对超新星或爆炸与密集的壳外壳的相互作用。 惠勒博士和他的小组将开发新技术，以适应超新星亮度的演变模型，以了解祖细胞恒星的质量损失。 他们还将探索具有光谱和谱极化的IA型超市型，以了解祖细胞的进化，爆炸的物理学以及使用超新星来准确的宇宙学测量结果，这项研究预计将通过巨大的进化和促进的科学培训，并促进了杰出的研究，并将其促进了良好的研究，并贡献了既定的研究，并贡献了人们的发展，并贡献了既定的进化，以及综合的发展，并贡献了整合的发展，并贡献了整合的研究，并促进了宇宙学的发展，并将其贡献为宇宙学，并促进了宇宙的发展。学生和博士后研究员。 惠勒博士还将继续努力向公众传达科学结果。