Morello, G;
Claret, A;
Martin-Lagarde, M;
Cossou, C;
Tsiaras, A;
Lagage, P-O;
(2020)
The ExoTETHyS Package: Tools for Exoplanetary Transits around Host Stars.
The Astronomical Journal
, 159
(2)
, Article 75. 10.3847/1538-3881/ab63dc.
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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.
| Type: | Article |
|---|---|
| Title: | The ExoTETHyS Package: Tools for Exoplanetary Transits around Host Stars |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3847/1538-3881/ab63dc |
| Publisher version: | https://doi.org/10.3847/1538-3881/ab63dc |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Observational astronomy; Spectroscopy; High time resolution astrophysics; Exoplanet atmospheres; Stellar atmospheres; Transit photometry; Eclipsing binary stars; Exoplanet systems; Stellar astronomy; Limb darkening |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10092859 |
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