Recently there has been a renewed interest in the power-2 limb darkening law for modeling exoplanet transits. This law provides a better match to the intensities generated by spherical stellar atmosphere models than other 2-parameter laws. To help facilitate a wider use of the power-2 law we correct a minor error and, expanding on previous work, suggest a parametrization that can improve the sampling required by some numerical methods such as MCMC.
@article{arxiv.1909.00067,
title = {Note on the Power-2 Limb Darkening Law},
author = {Donald R. Short and William F. Welsh and Jerome A. Orosz and Gur Windmiller and P. F. L Maxted},
journal= {arXiv preprint arXiv:1909.00067},
year = {2019}
}
Comments
3 pages, 1 figure, published as a research note of the AAS