TauREx3 PhaseCurve：用于相位曲线描述的1.5维模型
TauREx3 PhaseCurve: A 1.5D model for phase curve description
摘要：
近年来，对系外行星大气的反演分析非常成功，通过凌日和日食方法对这些世界的组成和温度结构提供了深刻的见解。光谱相位曲线观测分析理论上可以提供更多的信息，但仍然局限于少数行星。在接下来的十年里，新的设施，如NASA-JWST和ESA-Ariel将彻底改变系外行星大气层的领域，我们预计，将花费大量的时间在光谱相位曲线观测上。目前大多数模型在相位曲线数据分析方面仍然受到限制，因为它们没有将行星大气作为一个整体考虑，或者它们需要大量的计算资源。在本文中，我们提出了一个半解析模型，将允许计算系外行星的发射光谱在不同的相位角。我们的模型提供了一种方法来模拟大量的观测，而只有约4倍的速度比传统的平面平行主食的前向模型。该模型基于新开发的TauREx 3框架（Al-Refaie 2020），将进一步开发，以进行相位曲线大气反演。
英文摘要：
In the recent years, retrieval analysis of exoplanet atmospheres have been very successful, providing deep insights on the composition and the temperature structure of these worlds via the transit and eclipse methods. Analysis of spectral phase curve observations, which in theory provides even more information, are still limited to a few planets. In the next decade, new facilities such as NASA-JWST and ESA-Ariel will revolutionise the field of exoplanet atmospheres and we expect that a significant time will be spent on spectral phase curve observations. Most current models are still limited in their analysis of phase curve data as they do not consider the planet atmosphere as a whole or they require large computational resources. In this paper we present a semi-analytical model that will allow to compute exoplanet emission spectra at different phase angles. Our model provides a way to simulate a large number of observations while being only about 4 times slower than the traditional forward model for plane parallel primary eclipse. This model, which is based on the newly developed TauREx3 framework (Al-Refaie 2020), will be further developed to allow for phase curve atmospheric retrievals.
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