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}
}
  • L. Kreidberg
  • Published 29 July 2015
  • Physics
  • arXiv: Earth and Planetary Astrophysics
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… 

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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
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
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
TLDR
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.