The ExoTETHyS Package: Tools for Exoplanetary Transits around Host Stars

DOI: 
10.3847/1538-3881/ab63dc
Publication date: 
01/02/2020
Main author: 
Morello, G.
IAA authors: 
Claret, A.
Authors: 
Morello, G.;Claret, A.;Martin-Lagarde, M.;Cossou, C.;Tsiaras, A.;Lagage, P. -O.
Journal: 
The Astronomical Journal
Refereed: 
Yes
Publication type: 
Article
Volume: 
159
Pages: 
75
Abstract: 
We present here the first release of the open-source python package ExoTETHyS (stable: https://zenodo.org/badge/latestdoi/169268509, development version: https://github.com/ucl-exoplanets/ExoTETHyS/), which aims to provide a stand-alone set of tools for modeling spectrophotometric observations of 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, and (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 James Webb Space Telescope and Atmospheric Remote-sensing Infrared Exoplanet Large-survey missions.
Database: 
ADS
SCOPUS
URL: 
https://ui.adsabs.harvard.edu/#abs/2020AJ....159...75M/abstract
ADS Bibcode: 
2020AJ....159...75M
Keywords: 
Astrophysics - Earth and Planetary Astrophysics;Astrophysics - Instrumentation and Methods for Astrophysics;Astrophysics - Solar and Stellar Astrophysics