Massive star formation: is there a chemical signature of its evolutionary sequence?

大规模恒星形成：其演化序列是否存在化学特征？

• 批准号: DP0451893
• 负责人: Prof Mark Wardle
• 金额: $ 38.86万
• 依托单位: Macquarie University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0451893
• 关键词: Massive; star; formation; there; chemical

High mass stars play a crucial role in the formation and evolution of galaxies, but little is known about how they are created. We shall use the upgraded Mopra and Australia Telescope Compact Array national facility telescopes to observe the chemical changes induced in the environs of massive stars by UV irradiation, outflow and shock waves during the formation process. We shall model the underlying physical and chemical processes that determine the chemical abundances to develop a paradigm for the sequence of events that occur during the formation of a massive star.

大质量恒星在星系的形成和演化中起着至关重要的作用，但人们对它们是如何产生的知之甚少。我们将使用升级后的MOPRA和澳大利亚望远镜紧凑型阵列国家设施望远镜来观测大质量恒星形成过程中紫外线辐射、外流和冲击波在环境中诱导的化学变化。我们将对决定化学丰度的基本物理和化学过程进行建模，以开发一个在大质量恒星形成期间发生的事件序列的范例。