A large star is on left with the illumination of an exoplanet shown on the right over a star background.

Exonest

EXONEST is a Bayesian based inference software package that allows for plug-and-play characterization and model testing of exoplanets given photometric data. Currently, the code is available in Matlab, but work is ongoing to convert it to Python to make use of PyMultinest, which has greater functionality than the Matlab version of Multinest.

Currently, EXONEST supports transits and eclipses, reflected light for Lambertian reflectors, thermal light using either a dayside/nightside model, or a model that treats the exoplanet as if its temperature is distributed as concentric spherical segments, boosted light, and ellipsoidal variations.

Efforts are being made to improve the reflected light model by accurately accounting for the illumination created by spherical stars. In addition, a thermal model that treats the exoplanet as if its temperature is distributed like the sections of a beach ball is being incorporated.

A flow chart
Flow chart of EXONEST

People involved with this project

Links to papers, posters, and presentations related to this project