batman: BAsic Transit Model cAlculatioN in Python
@article{Kreidberg2015batmanBT, title={batman: BAsic Transit Model cAlculatioN in Python}, author={Laura Kreidberg}, journal={arXiv: Earth and Planetary Astrophysics}, year={2015} }
I introduce batman, a Python package for modeling exoplanet transit light curves. The batman package supports calculation of light curves for any radially symmetric stellar limb darkening law, using a new integration algorithm for models that cannot be quickly calculated analytically. The code uses C extension modules to speed up model calculation and is parallelized with OpenMP. For a typical light curve with 100 data points in transit, batman can calculate one million quadratic limb-darkened…
447 Citations
RoadRunner: a fast and flexible exoplanet transit model
- Geology, Physics
- 2020
I present RoadRunner, a fast exoplanet transit model that can use any radially symmetric function to model stellar limb darkening while still being faster to evaluate than the analytical transit…
qpower2: A fast and accurate algorithm for the computation of exoplanet transit light curves with the power-2 limb-darkening law
- Physics, GeologyAstronomy & Astrophysics
- 2019
Context. The power-2 law, Iλ( μ) = 1 − c(1−μα), accurately represents the limb-darkening profile for cool stars. It has been implemented in a few transit models to-date using numerical integration…
SPIDERMAN: an open-source code to model phase curves and secondary eclipses
- Physics, Geology
- 2018
We present SPIDERMAN, a fast code for calculating exoplanet phase curves and secondary eclipses with arbitrary surface brightness distributions in two dimensions.
Using a geometrical algorithm, the…
catwoman: A transit modelling Python package for asymmetric light curves
- Geology, PhysicsJ. Open Source Softw.
- 2020
Being able to model these asymmetric signatures directly from transit light curves could give an unprecedented glimpse into planetary 3-dimensional structure, helping constrain models of atmospheric evolution, structure and composition.
The ExoTETHyS Package: Tools for Exoplanetary Transits around Host Stars
- Physics, GeologyThe Astronomical Journal
- 2020
The first release of the open-source python package ExoTETHyS is presented, which aims to provide a stand-alone set of tools for modeling spectro-photometric observations of the transiting exoplanets, with 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.
starry: Analytic Occultation Light Curves
- Physics, Geology
- 2019
We derive analytic, closed form, numerically stable solutions for the total flux received from a spherical planet, moon or star during an occultation if the specific intensity map of the body is…
Optimized transit detection algorithm to search for periodic transits of small planets
- Physics, GeologyAstronomy & Astrophysics
- 2019
We present a new method to detect planetary transits from time-series photometry, the transit least squares (TLS) algorithm. TLS searches for transit-like features while taking the stellar limb…
Measuring Exoplanetary Radii Using Transit Photometry
- Geology, Physics
- 2019
The goal of this study was to measure the radii and constrain the orbital periods of three hot Jupiter exoplanets: HAT-P-25b, HAT-P-9b, and HAT-P-30b. Raw images of the host stars were acquired from…
juliet: a versatile modelling tool for transiting and non-transiting exoplanetary systems
- Geology, PhysicsMonthly Notices of the Royal Astronomical Society
- 2019
Here we present juliet, a versatile tool for the analysis of transits, radial velocities, or both. juliet is built over many available tools for the modelling of transits, radial velocities, and…
Analytic Planetary Transit Light Curves and Derivatives for Stars with Polynomial Limb Darkening
- PhysicsThe Astronomical Journal
- 2020
We derive analytic, closed-form solutions for the light curve of a planet transiting a star with a limb darkening profile which is a polynomial function of the stellar elevation, up to arbitrary…
References
SHOWING 1-3 OF 3 REFERENCES
A Detection of Water in the Transmission Spectrum of the Hot Jupiter WASP-12b and Implications for its Atmospheric Composition
- Physics, Geology
- 2015
Detailed characterization of exoplanets has begun to yield measurements of their atmospheric properties that constrain the planets’ origins and evolution. For example, past observations of the…
Deciphering the Atmospheric Composition of WASP-12b: A Comprehensive Analysis of its Dayside Emission
- Physics, Geology
- 2014
WASP-12b was the first planet reported to have a carbon-to-oxygen ratio (C/O) greater than one in its dayside atmosphere. However, recent work to further characterize its atmosphere and confirm its…
Prevalence of Earth-size planets orbiting Sun-like stars
- Physics, GeologyProceedings of the National Academy of Sciences
- 2013
The National Aeronautics and Space Administration Kepler telescope is used to survey 42,000 Sun-like stars for periodic dimmings that occur when a planet crosses in front of its host star, finding 603 planets, 10 of which are Earth size and orbit in the habitable zone, where conditions permit surface liquid water.