Open AccessPossible Variations in the Limb-Darkening Coefficients of Eclipsed Stars at Short Time Intervals
Author(s) -
М. К. Абубекеров,
N. Yu. Gostev
Publication year - 2022
Publication title -
astronomy at the epoch of multimessenger studies. proceedings of the vak-2021 conference, aug 23–28, 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.51194/vak2021.2022.1.1.033
Subject(s) - limb darkening , kepler , exoplanet , epoch (astronomy) , light curve , transit (satellite) , physics , planet , stars , astronomy , binary number , astrophysics , mathematics , public transport , arithmetic , political science , law
The interpretation of high-precision transit light curves of binary systems with exoplanets Kepler-5b, Kepler-6b, and Kepler-7b is performed for three dierent epochs. It has been demonstrated that the values of the stellar limb-darkening coecientsdier signicantly for each epoch, while the geometric parameters for each epoch agree well with each other within the errormargin. It is shown that reliable determination of the limb-darkening coecients requires methods that would “clear” theobserved transit light curves from eects caused by surface inhomogeneity.