Massive Stars as Cosmic Engines

作为宇宙引擎的大质量恒星

• 批准号: RGPIN-2016-04385
• 负责人: Moffat, Anthony
• 金额: $ 1.97万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633393
• 关键词: Massive; Stars; Cosmic; Engines

My research is directed to the determination of the properties of massive stars. Such stars have initial masses above 8 times solar. They eventually fuse elements in successively smaller shells in their cores right through to iron, leading to sudden collapse accompanied by explosion of matter outside the core in the form of a supernova (SN). Although rare, massive stars deliver back to their surroundings far more than their share of radiation and enriched nuclear material for most of their relatively short lifetimes, both from their strong winds and their final SN. This makes them major contributors to the ecology and energetics of the Universe. In this proposal, I will concentrate on the following specific GOALS :

我的研究方向是确定大质量恒星的性质。这类恒星的初始质量超过8倍太阳质量。它们最终将核心中不断变小的壳层中的元素融合成铁，导致突然坍塌，伴随着核心外物质的爆炸，形成超新星（SN）。 虽然罕见，但大质量恒星在其相对较短的寿命中，从强风和最终SN中返回到周围环境的辐射和浓缩核材料远远超过其份额。这使它们成为宇宙生态学和能量学的主要贡献者。在本提案中，我将集中讨论以下具体目标：