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The ARCiS framework for Exoplanet Atmospheres: Modelling Philosophy and Retrieval by Min, Michiel; Ormel, Chris W.; Chubb, Katy; Helling, Christiane; Kawashima, Yui is a scholarly article available to read on EtoBox.

What is The ARCiS framework for Exoplanet Atmospheres: Modelling Philosophy and Retrieval about?

Aims: ARCiS, a novel code for the analysis of exoplanet transmission and emission spectra is presented. The aim of the modelling framework is to provide a tool able to link observations to physical models of exoplanet atmospheres. Methods: The modelling philosophy chosen in this paper is to use physical and chemical models to constrain certain parameters while keeping free the parts where our physical understanding is still more limited. This approach, in between full physical modelling and full parameterisation, allows us to use the processes we understand well and parameterise those less understood. A Bayesian retrieval framework is implemented and applied to the transit spectra of a set of 10 hot Jupiters. The code contains chemistry and cloud formation and has the option for self consistent temperature structure computations. Results: The code presented is fast and flexible enough to be used for retrieval and for target list simulations for e.g. JWST or the ESA Ariel missions. We present results for the retrieval of elemental abundance ratios using the physical retrieval framework and compare this to results obtained using a parameterised retrieval setup. Conclusions: We conclu

Author

Min, Michiel; Ormel, Chris W.; Chubb, Katy; Helling, Christiane; Kawashima, Yui

Published

2020

Language

EN