Astronomy Observation - stellar astronomy

天文观测-恒星天文学

• 批准号: 2645535
• 金额: --
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2645535
• 关键词: Astronomy; Observation; stellar; astronomy

Galactic archaeology in the local group with JWST. Evolved stellar populations shine brightly in the infrared and are an excellent tracer for past star formation in local galaxies. In addition, the AGB stage of stars life cycle contributes greatly to the chemical enrichment of its surroundings through mass loss in the form of dust. However, this very mechanism makes observing these stars very difficult with any current instruments available to us. The recent successful launch of JWST gives us an excellent opportunity to study these elusive stars. This project has guaranteed time on JWST in the first cycle which we will use to look at four local universe objects and gain further insight to the dust cycle in the evolved populations.

JWST 当地小组的银河考古学。演化的恒星群在红外线中发出明亮的光芒，是当地星系过去恒星形成的极好示踪剂。此外，恒星生命周期的AGB阶段通过尘埃形式的质量损失对其周围环境的化学富集做出了巨大贡献。然而，正是这种机制使得使用我们现有的任何仪器来观察这些恒星都非常困难。詹姆斯韦伯太空望远镜最近的成功发射为我们提供了研究这些难以捉摸的恒星的绝佳机会。该项目保证了第一个周期中 JWST 的时间，我们将用它来观察四个局部宇宙物体，并进一步了解进化群体中的尘埃循环。