Exploring Exo-Venuses with JWST

与 JWST 一起探索外金星

• 批准号: 2645687
• 金额: --
• 依托单位: The Open University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2645687
• 关键词: Exploring; Exo; Venuses; JWST

Over the last decade, we have started to uncover details of exoplanet atmospheres using the technique of transmission spectroscopy. When the planet crosses in front of its parent star during orbit, some of the starlight is filtered through the atmosphere, emerging with a fingerprint of any absorbing gases and aerosols that are present. Currently, we are most capable of doing this for hot, gas giant planets with hydrogen-helium atmospheres, and smaller, cooler planets present a challenge.Venus is the planet in the Solar System with the greatest similarity to Earth in terms of its size and mass, yet its evolutionary history has culminated in an incredibly hot, acidic and inhospitable world. Studying Venus-like planets around other stars will help us to understand how this might have happened.

在过去的十年里，我们已经开始使用透射谱技术来揭示系外行星大气的细节。当这颗行星在轨道上穿过其母恒星时，一些星光会被大气层过滤，并带有存在的任何吸收气体和气溶胶的指纹。目前，我们最有能力做到这一点的是具有氢氦大气的高温气态巨行星，而更小、更冷的行星是一个挑战。金星是太阳系中在大小和质量上与地球最相似的行星，但它的进化史最终导致了一个令人难以置信的炎热、酸性和不适宜居住的世界。研究其他恒星周围类似金星的行星将有助于我们理解这种情况是如何发生的。