Forward Models of Exoplanetary Atmospheres

系外行星大气层的正演模型

• 批准号: 1638207
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1638207
• 关键词: Forward; Models; Exoplanetary; Atmospheres

My research has just begun into looking at the atmospheres of exoplanets; how we are able to observe them, and how we can extract the complex dynamics and chemistry from the spectra. It will be focused on emission spectroscopy of these planets, so that we can better understand what these worlds are like using secondary eclipse and direct imaging data. I have begun learning about how radiation and hydrodynamics have a key role to play in the emission from an atmosphere. I am currently working on current modelling techniques, and how they can be used to extract planetary properties in the most efficient way possible. From this, we can look into formation of these planetary systems and how they may have evolved over time.We may in the next few years be able to detect the atmospheres for planets other than hot giant planets; these will have completely different compositions and chemistry, possibly even similar to our own planet. With the arrival of the James Webb telescope, we will be able to peer into the atmospheres much more closely and work out more about what this means for us. Detection of non-equilibrium compositions (such as the presence of oxygen on Earth) could mean other life on these planets, and/or very interesting geology. The overall goal of exoplanet atmosphere research is to answer some of the most important questions to us, such as are there other planets that we could live on, and is there other life in the universe.

我的研究刚刚开始观察系外行星的大气层。我们如何能够观察它们，以及我们如何从光谱中提取复杂的动力学和化学反应。它将重点关注这些行星的发射光谱，以便我们可以利用二次日食和直接成像数据更好地了解这些世界。我已经开始了解辐射和流体动力学如何在大气排放中发挥关键作用。我目前正在研究当前的建模技术，以及如何使用它们以最有效的方式提取行星属性。由此，我们可以研究这些行星系统的形成以及它们如何随着时间的推移而演变。我们可能在未来几年内能够探测到除热巨行星之外的行星的大气层；它们将具有完全不同的成分和化学性质，甚至可能与我们自己的星球相似。随着詹姆斯·韦伯望远镜的到来，我们将能够更近距离地观察大气层，并更多地了解这对我们意味着什么。检测到非平衡成分（例如地球上氧气的存在）可能意味着这些行星上存在其他生命，和/或非常有趣的地质。系外行星大气研究的总体目标是回答一些对我们来说最重要的问题，例如是否还有其他行星可供我们居住，宇宙中是否存在其他生命。