Atmospheric retrievals with petitRADTRANS
arXiv:2309.06755 · doi:10.21105/joss.05875
Abstract
petitRADTRANS (pRT) is a fast radiative transfer code used for computing emission and transmission spectra of exoplanet atmospheres, combining a FORTRAN back end with a Python based user interface. It is widely used in the exoplanet community with 222 references in the literature to date, and has been benchmarked against numerous similar tools. The spectra calculated with pRT can be used as a forward model for fitting spectroscopic data using Monte Carlo techniques, commonly referred to as an atmospheric retrieval. The new retrieval module combines fast forward modelling with nested sampling codes, allowing for atmospheric retrievals on a large range of different types of exoplanet data. Thus it is now possible to use pRT to easily and quickly infer the atmospheric properties of exoplanets in both transmission and thermal emission.
5 pages, 1 figure, published in the Journal of Open Source Software
References in corpus (8)
- petitRADTRANS: a Python radiative transfer package for exoplanet characterization and retrieval
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- ExoMol line lists XVIII. The high temperature spectrum of VO
- Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e
- Detection of Fe I in the atmosphere of the ultra-hot Jupiter WASP-121b, and a new likelihood-based approach for Doppler-resolved spectroscopy
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