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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…

Earth and Planetary Astrophysics · Physics 2020-02-05 Giuseppe Morello , Antonio Claret , Marine Martin-Lagarde , Christophe Cossou , Angelos Tsiaras , Pierre-Olivier Lagage

To address the the problem of calibration of instrument systematics in transit light curves, we present the Python package ExoTiC-ISM. Transit spectroscopy can reveal many different chemical components in exoplanet atmospheres, but such…

Instrumentation and Methods for Astrophysics · Physics 2020-07-16 Iva Laginja , Hannah R. Wakeford

We present the easy-to-use, publicly available, Python package petitRADTRANS, built for the spectral characterization of exoplanet atmospheres. The code is fast, accurate, and versatile; it can calculate both transmission and emission…

Earth and Planetary Astrophysics · Physics 2019-07-23 P. Mollière , J. P. Wardenier , R. van Boekel , Th. Henning , K. Molaverdikhani , I. A. G. Snellen

We present a fast and user friendly exoplanet transit light curve modelling package PyTransit, implementing optimised versions of the Gimen\'ez and the Mandel & Agol transit models. The package offers an object-oriented Python interface to…

Earth and Planetary Astrophysics · Physics 2015-04-29 Hannu Parviainen

We present the scientific performance results of PynPoint, our Python-based software package that uses principle component analysis to detect and estimate the flux of exoplanets in two dimensional imaging data. Recent advances in adaptive…

Instrumentation and Methods for Astrophysics · Physics 2015-06-05 Adam Amara , Sascha Quanz

We present Pandora, a new software to model, detect, and characterize transits of extrasolar planets with moons in stellar photometric time series. Pandora uses an analytical description of the transit light curve for both the planet and…

Earth and Planetary Astrophysics · Physics 2022-05-20 Michael Hippke , René Heller

We announce the public release of PynPoint, a Python package that we have developed for analysing exoplanet data taken with the angular differential imaging observing technique. In particular, PynPoint is designed to model the point spread…

Earth and Planetary Astrophysics · Physics 2014-05-15 Adam Amara , Sascha P. Quanz , Joel Akeret

We propose a new data analysis method for obtaining transmission spectra of exoplanet atmospheres and brightness variation across the stellar disk from transit observations. The new method is capable of recovering exoplanet atmosphere…

Solar and Stellar Astrophysics · Physics 2018-05-02 Erik Aronson , Nikolai Piskunov

ExoSim 2 is the next generation of the Exoplanet Observation Simulator (ExoSim) tailored for spectro-photometric observations of transiting exoplanets from space, ground, and sub-orbital platforms. This software is a complete rewrite…

Instrumentation and Methods for Astrophysics · Physics 2025-05-13 Lorenzo V. Mugnai , Andrea Bocchieri , Enzo Pascale , Andrea Lorenzani , Andreas Papageorgiou

A new generation of exoplanet research beckons and with it the need for simulation tools that accurately predict signal and noise in transit spectroscopy observations. We developed ExoSim: an end-to-end simulator that models noise and…

Instrumentation and Methods for Astrophysics · Physics 2021-03-17 Subhajit Sarkar , Enzo Pascale , Andreas Papageorgiou , Luke J. Johnson , Ingo Waldmann

The Exoplanet Transmission Spectroscopy Imager (ETSI) amalgamates a low resolution slitless prism spectrometer with custom multi-band filters to simultaneously image 15 spectral bandpasses between 430 nm and 975 nm with an average spectral…

By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary bodies in the system down to Earth-like masses. We describe…

Astrophysics · Physics 2008-09-22 I. A. Steele , S. D. Bates , N. Gibson , F. Keenan , J. Meaburn , C. J. Mottram , D. Pollacco , I. Todd

Exoplanet transmission spectra, which measure the absorption of light passing through a planet's atmosphere during transit, are most often assessed globally, resulting in a single spectrum per planetary atmosphere. However, the inherent…

Earth and Planetary Astrophysics · Physics 2022-12-21 David Grant , Hannah R. Wakeford

We present the design of a novel instrument tuned to detect transiting exoplanet atmospheres. The instrument, which we call the exoplanet transmission spectroscopy imager (ETSI), makes use of a new technique called common-path multi-band…

Instrumentation and Methods for Astrophysics · Physics 2020-12-03 Mary Anne Limbach , Luke M. Schmidt , D. L. DePoy , Jeffrey C. Mason , Mike Scobey , Pat Brown , Chelsea Taylor , Jennifer L. Marshall

The James Webb Space Telescope (JWST) will perform exoplanet transit spectroscopy in the coming decade promising transformative science results. All four instruments on board can be used for this technique which reconstructs the atmospheric…

Earth and Planetary Astrophysics · Physics 2020-01-08 Subhajit Sarkar , Nikku Madhusudhan , Andreas Papageorgiou

The Mid-Infrared Instrument (MIRI)'s Medium Resolution Spectrometer (the MRS) on JWST has potentially important advantages for transit and eclipse spectroscopy of exoplanets, including lack of saturation for bright host stars, wavelength…

Near-IR observations are important for the detection and characterization of exoplanets using the transit technique, either in surveys of large numbers of stars or for follow-up spectroscopic observations of individual planets. In a…

Earth and Planetary Astrophysics · Physics 2015-06-05 C. Clanton , C. Beichman , G. Vasisht , R. Smith , B. S. Gaudi

We propose a method for observing transiting exoplanets with near-infrared high-resolution spectrometers. We aim to create a robust data analysis method for recovering atmospheric transmission spectra from transiting exoplanets over a wide…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Erik Aronson , Pierre Waldén , Nikolai Piskunov

We present Exo-Transmit, a software package to calculate exoplanet transmission spectra for planets of varied composition. The code is designed to generate spectra of planets with a wide range of atmospheric composition, temperature,…

Earth and Planetary Astrophysics · Physics 2017-03-22 Eliza M. -R. Kempton , Roxana E. Lupu , Albert Owusu-Asare , Patrick Slough , Bryson Cale

Here we describe a Jupyter notebook demonstrating methods for the reduction and analysis of exoplanet transit observations taken with the WFC3/UVIS G280 grism. Released on Space Telescope's hst_notebooks GitHub repository, this notebook…

Instrumentation and Methods for Astrophysics · Physics 2025-11-14 Munazza K. Alam , Frederick Dauphin , Amanda Pagul
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