A Python Package for Multidimensional Atmospheric Retrievals of Exoplanet Spectra
POSEIDON is a spectral modelling and atmospheric retrieval code for exoplanets. Given a set of observed exoplanet spectra from space-based or ground-based telescopes, POSEIDON uses Bayesian techniques to infer the atmospheric properties of the planet.
POSEIDON's main application is modelling and retrieval of 1D, 2D, and 3D exoplanet transmission spectra. Recently, POSEIDON has been expanded to include disk-integrated thermal emission and reflection spectra modelling and retrievals for both secondary eclipses and directly-imaged substellar objects.
The installation guide and a wide-range of tutorials for different applications can be found in the POSEIDON documentation.
If you use POSEIDON in your work, please cite MacDonald & Madhusudhan (2017) and MacDonald (2023).
Copyright 2023-2024 Ryan J. MacDonald
POSEIDON is available under the BSD 3-Clause License. Please see the LICENSE file for more information.
For bug reports or feature requests, please raise an issue.
Interesting in contributing to POSEIDON? Please see the contribution guide.
Feel free to reach out to Ryan MacDonald (ryanjmac@umich.edu) or Elijah Mullens (eem85@cornell.edu).