English

The ExoTETHyS package: Tools for Exoplanetary Transits around Host Stars

Earth and Planetary Astrophysics 2020-02-05 v2 Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics

Abstract

We present here the first release of the open-source python package ExoTETHyS, which aims to provide a stand-alone set of tools for modeling spectro-photometric observations of the transiting exoplanets. In particular, we describe: (1) a new calculator of stellar limb-darkening coefficients that outperforms the existing software by one order of magnitude in terms of light-curve model accuracy, i.e., down to <10 parts per million (ppm); (2) an exact transit light-curve generator based on the entire stellar intensity profile rather than limb-darkening coefficients. New tools will be added in later releases to model various effects in exoplanetary transits and eclipsing binaries. ExoTETHyS is a reference package for high-precision exoplanet atmospheric spectroscopy with the upcoming JWST and ARIEL missions.

Keywords

Cite

@article{arxiv.1908.09599,
  title  = {The ExoTETHyS package: Tools for Exoplanetary Transits around Host Stars},
  author = {Giuseppe Morello and Antonio Claret and Marine Martin-Lagarde and Christophe Cossou and Angelos Tsiaras and Pierre-Olivier Lagage},
  journal= {arXiv preprint arXiv:1908.09599},
  year   = {2020}
}

Comments

published on the AJ

R2 v1 2026-06-23T10:56:45.213Z