The X-ray irradiation and evaporation of exoplanet atmospheres

系外行星大气的 X 射线照射和蒸发

• 批准号: 2435780
• 金额: --
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2435780
• 关键词: ray; irradiation; evaporation; exoplanet; atmospheres

The project is an observational study of the X-ray emission of exoplanet host stars. The goal is to quantify the X-ray and extreme-ultraviolet irradiation of the atmospheres of the exoplanets in order assess the role of high-energy irradiation in atmospheric evolution. This will include studies of the X-ray evolution with age of the system, as well as the effects of activity cycles and stellar flares. For potentially habitable planets, such as those orbiting TRAPPIST-1, the beneficial effects of removing a thick primary atmosphere will be balanced against the potential detrimental effects on the composition and water content of a secondary atmosphere.

该项目是对系外行星宿主恒星的X射线发射进行观测研究。目标是量化系外行星大气的X射线和极紫外线照射，以评估高能照射在大气演变中的作用。这将包括研究X射线随系统年龄的演变，以及活动周期和恒星耀斑的影响。对于可能适合居住的行星，例如那些围绕TRAPPIST-1运行的行星，去除厚厚的初级大气层的有益影响将与对次级大气层的成分和水含量的潜在有害影响相平衡。